Updated on 2024/10/20

写真a

 
NAKAMURA Takashi
 
Organization
Institute of Materials and Systems for Sustainability Division of Materials Research (DM) Professor
Graduate School
Graduate School of Engineering
Title
Professor

Degree 1

  1. 博士(工学) ( 2010.3   東北大学 ) 

Research Interests 3

  1. 固体電気化学

  2. 固体イオニクス

  3. エネルギー材料

Research Areas 2

  1. Nanotechnology/Materials / Inorganic materials and properties

  2. Nanotechnology/Materials / Energy chemistry

Current Research Project and SDGs 4

  1. 欠陥制御技術の開発

  2. 水素製造用酸素発生触媒の開発

  3. ナトリウムイオン電池正極の開発

  4. リチウムイオン電池正極の開発

Research History 3

  1. Tohoku University   Associate professor

    2019.10 - 2023.3

  2. Tohoku University   Assistant Professor

    2012.8 - 2019.9

  3. 住友金属鉱山株式会社

    2010.4 - 2012.7

Education 3

  1. Tohoku University

    2007.4 - 2010.3

  2. Tohoku University

    2005.4 - 2007.3

  3. Tohoku University

    2001.4 - 2005.3

Professional Memberships 4

  1. 電気化学会

  2. 固体化学の新しい指針を探る研究会

  3. SOFC研究会

  4. 日本固体イオニクス学会

Committee Memberships 16

  1. 第16回固体イオニクスセミナー   世話人  

    2022   

  2. 2022年電気化学会東北支部-東海支部合同シンポジウム   実行委員  

    2022   

  3. 第48回固体イオニクス討論会   実行委員  

    2022   

  4. 電気化学会第90回大会   実行委員  

    2022   

  5. 電気化学会東北支部   事務幹事  

    2021.4 - 2024.3   

  6. 2021年電気化学会東海支部-東北支部合同シンポジウム   実行委員  

    2021   

  7. 新学術領域「蓄電固体界面科学」 第2回若手勉強会   世話人  

    2020   

  8. 固体化学の新しい指針を探る研究会 若手研究者発表会   実行委員  

    2018   

  9. 第6回附置研アライアンス若手研究発表会   実行委員  

    2018   

  10. 第43回固体イオニクス討論会   実行委員  

    2017   

  11. Electrochemistry Workshop 2016   Local Organizer  

    2016   

  12. 東北大学多元物質科学研究所 多友会   幹事  

    2015 - 2018   

  13. 電気化学会東北支部   幹事  

    2014.4 - 2020.3   

  14. 第一回附置研アライアンス若手研究発表会   実行委員  

    2013.4 - 2014.3   

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    Committee type:Academic society

  15. 13th International Symposium on Solid Oxide Fuel Cells   実行委員  

    2012.8 - 2013.11   

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    Committee type:Academic society

  16.   電気化学会第80回大会 実行委員  

    2012   

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Awards 13

  1. 第17回青葉工学振興会賞

    2023.12   一般社団法人 青葉工学振興会   エネルギー機能材料のアニオン欠陥エンジニアリング

    中村 崇司

  2. 2022 堀場雅夫賞

    2022.8   株式会社 堀場製作所 堀場雅夫賞事務局   電気化学に基づく欠陥エンジニアリング技術の開発

    中村 崇司

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    Award type:Award from publisher, newspaper, foundation, etc.  Country:Japan

  3. 文部科学大臣表彰 若手科学者賞

    2022.4   文部科学省   アニオン欠陥に着目したエネルギー変換材料の機能開拓の研究

    中村崇司

  4. 電気化学会論文賞

    2022.3   公益社団法人 電気化学会   Experimental Evaluation of Influence of Stress on Li Chemical Potential and Phase Equilibrium in Two-phase Battery Electrode Materials

    木村 勇太, 舟山 啓太, ファッカオ マフノップ, 中村 崇司, 桑田 直明, 川田 達也, 河村 純一, 雨澤 浩史

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  5. 材料科学世界トップレベル研究拠点長賞

    2022.2   東北大学材料科学世界トップレベル研究拠点   エネルギー材料のアニオン欠陥機能に関する研究

    中村 崇司

  6. 科学計測振興賞

    2020.12   科学計測振興基金   放射光X線を用いたエネルギーデバイスのOperando/In-situ計測

    中村崇司

  7. 第9回新化学技術研究奨励賞

    2020.10   新化学技術推進協会   化学ポテンシャル能動制御技術の開発と高エネルギー密度蓄電材料への展開

    中村崇司

  8. 第19回インテリジェントコスモス奨励賞

    2020.5   インテリジェントコスモス学術振興財団   固体電解質リアクターを利用した超高エネルギー密度蓄電材料の開発

    中村崇司

  9. 田川記念固体化学奨励賞

    2020.3   電気化学会   エネルギー変換・貯蔵材料の欠陥化学と電気化学機能に関する研究

    中村崇司

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  10. 第14回固体イオニクスセミナー 優秀ポスター賞

    2018.9   一般社団法人 日本固体イオニクス学会   固体電解質界面における整流特性の発現

    中村崇司, 雨澤浩史, Jurgen Janek

  11. 電気化学会論文賞

    2017.3   公益社団法人 電気化学会   その場軟X線吸収・発光分光同時測定技術の開発

    大池諒, 岡本悠祐, 徳島高, 中村崇司, 雨澤浩史

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  12. 電気化学会進歩賞(佐野賞)

    2017.3   公益社団法人 電気化学会   酸素不定比性に着目した機能性酸化物の電気化学的機能発現に関する研究

    中村崇司

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  13. 第9回多元物質科学研究奨励賞

    2014.11   籏野奨学基金   層状ペロブスカイト型酸化物における格子間酸素生成-電子状態-結晶構造に関する研究

    中村崇司

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    Country:Japan

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Papers 75

  1. Coating layer design principles considering lithium chemical potential distribution within solid electrolytes of solid-state batteries

    Yuta Kimura, Takaya Fujisaki, Tetsuya Shimizu, Takashi Nakamura, Yasutoshi Iriyama, Koji Amezawa

    Communications Materials   Vol. 5 ( 1 )   2024.7

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    Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    Abstract

    Introducing a coating layer at an active material /solid electrolyte interface is crucial for ensuring thermodynamic stability of the solid electrolyte at interfaces in solid-state batteries. To thermodynamically protect the solid electrolyte, coating layers must maintain lithium chemical potential (μ<sub>Li</sub>) at coating layer/solid electrolyte interfaces within the electrochemical window of the solid electrolyte. However, a general coating layer design principle to achieve this remains unestablished. Here we theoretically elucidate the µ<sub>Li</sub> distribution across the solid electrolyte and coating layer, examining requirements for thermodynamic protection. We show that the protective capability of coating layers is not solely determined by their intrinsic characteristics, but also by the µ<sub>Li</sub> distribution within the solid electrolyte and coating layer. We propose a quantitative approach based on µ<sub>Li</sub> distribution to determine the required characteristics and geometries of coating layers that ensure the thermodynamic stability of the solid electrolyte while minimizing ohmic resistance, providing insights for coating layer design.

    DOI: 10.1038/s43246-024-00578-1

    Web of Science

    Scopus

    Other Link: https://www.nature.com/articles/s43246-024-00578-1

  2. Protracted Relaxation Dynamics of Lithium Heterogeneity in Solid-State Battery Electrodes Reviewed International journal

    Su Huang, Yuta Kimura, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Tomonari Takeuchi, Toyoki Okumura, Mizuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    The Journal of Physical Chemistry C   Vol. 128 ( 15 ) page: 6213 - 6221   2024.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.jpcc.4c00318

    Web of Science

    Scopus

  3. Modifications of the charge–discharge behaviour of Fe2(MoO4)3 in all-solid-state lithium-ion batteries

    Yuta Kimura, Shintaro Kobayashi, Shogo Kawaguchi, Koji Ohara, Yasuhiro Suzuki, Takashi Nakamura, Yasutoshi Iriyama, Koji Amezawa

    RSC Advances   Vol. 14 ( 26 ) page: 18109 - 18116   2024

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    Operando X-ray diffraction measurements revealed that Fe<sub>2</sub>(MO<sub>4</sub>)<sub>3</sub> electrode thin films on solid electrolytes possess an expanded solid-solution reaction region and narrower two-phase reaction region compared to those in liquid electrolytes.

    DOI: 10.1039/d4ra03058c

    Web of Science

    Scopus

    PubMed

  4. Development of Electrochemical Anion Doping Technique for Expansion of Functional Material Exploration Reviewed International journal

    Takuya Katsumata, Hajime Yamamoto, Yuta Kimura, Koji Amezawa, Ryotaro Aso, Soichi Kikkawa, Seiji Yamazoe, Takashi Nakamura

    Advanced Functional Materials   Vol. 33   page: 2307116   2023.9

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    Abstract

    Instead of conventional cation doping strategy, anion doping is a promising new strategy for advances of energy conversion and storage technologies such as batteries, catalysts, electrolysis, and fuel cells. To synthesize mixed‐anion compounds, novel synthesis techniques such as topochemical reaction, high‐pressure reaction, solvothermal reaction have been developed. Despite these excellent synthesis techniques, synthesizable mixed‐anion compounds are still limited. For further expansion of the material exploration of mixed‐anion compounds, herein, an electrochemical anion doping technique is developed, which can flexibly control a species of anion, the doping rate and the degree of anion doping. The concept of the new synthesis technique is verified by F doping to the perovskite oxide La<sub>0.5</sub>Sr<sub>0.5</sub>CoO<sub>3−</sub><sub>δ</sub>. Quantitative control of F in the perovskite host material is succeeded by using an electrochemical reactor composed of La<sub>0.5</sub>Sr<sub>0.5</sub>CoO<sub>3−</sub><sub>δ</sub>‐BaF<sub>2</sub>|BaF<sub>2</sub>|PbF<sub>2</sub>‐Pb, and phase‐pure F‐doped La<sub>0.5</sub>Sr<sub>0.5</sub>CoO<sub>3−</sub><sub>δ</sub> powder is obtained. Moreover, nano‐size crystalline domains with amorphous phase are formed on the particle surface under the high‐rate F doping, suggesting that tuning the anion doping rate enables the control of the formation of metastable phase. As demonstrated, the electrochemical anion doping technique opens up new possibilities for advances of energy materials by utilizing function of anionic species.

    DOI: 10.1002/adfm.202307116

  5. Five–Dimensional Analysis of Capacity Degradation in Battery Electrodes Enabled by Operando CT–XANES Reviewed International journal

    Yuta Kimura, Su Huang, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Tomonari Takeuchi, Toyoki Okumura, Mizuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    Small Methods     2023.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/smtd.202300310

  6. Structural and electronic characterization of fluorine-doped La0.5Sr0.5CoO3−δ using electron energy-loss spectroscopy Reviewed International journal

    Ryotaro Aso, Takuya Katsumata, Takashi Nakamura, Yusuke Watase, Koji Amezawa, Yasukazu Murakami

    Microscopy   Vol. 73 ( 1 ) page: 22 - 30   2023.5

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Oxford University Press (OUP)  

    Abstract

    Perovskite oxides, ABO3, are potential catalysts for the oxygen evolution reaction, which is important in the production of hydrogen as a sustainable energy resource. Optimizing the chemical composition of such oxides by substitution or doping with additional elements is an effective approach to improving the activity of such catalysts. Here, we characterized the crystal and electronic structures of fluorine-doped La0.5Sr0.5CoO3−δ particles using scanning transmission electron microscopy (STEM) and electron energy-loss spectroscopy (EELS). High-resolution STEM imaging demonstrated the formation of a disordered surface phase caused by fluorine doping. In addition, spatially resolved EELS data showed that fluorine anions were introduced into the interiors of the particles and that Co ions near the surfaces were slightly reduced by fluorine doping in conjunction with the loss of oxygen ions. Peak fitting of energy-loss near-edge structure data demonstrated an unexpected nanostructure in the vicinity of the surface. An EELS characterization comprising elemental mapping together with an energy-loss near-edge structure analysis indicated that this nanostructure could not be assigned to Co-based materials but rather to the solid electrolyte BaF2. Complementary structural and electronic characterizations using STEM and EELS as demonstrated herein evidently have the potential to play an increasingly important role in elucidating the nanostructures of functional materials.

    DOI: 10.1093/jmicro/dfad031

    Other Link: https://academic.oup.com/jmicro/article-pdf/73/1/22/56611404/dfad031.pdf

  7. Revisiting Cationic Doping Impacts in Ni-Rich Cathodes Reviewed International journal

    Xueyan Hou, Takuya Katsumata, Yuta Kimura, Yusuke Tamenori, Kiyofumi Nitta, Hirona Yamagishi, Koji Amezawa, Takashi Nakamura

    ACS Applied Energy Materials   Vol. 6 ( 3 ) page: 2072 - 2080   2023.1

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    As a promising cathode material for high-energydensity Li-ion batteries, Ni-rich layered oxide cathode active chemical performance degrades rapidly upon charge/discharge cycles probably due to electrochemical/thermochemical instabilities. While cationic doping in the transition-metal site has been regarded as an effective strategy to enhance the electrochemical performance, the true impact of cation doping is not well understood. To quantitatively assess the impact of cationic doping, in this work, the electrochemical performance and lattice oxygen stability of LiNi0.82Co0.18O2, isovalent Al3+-doped LiNi0.82Co0.15Al0.03O2, and high-valent Ti4+-doped LiNi0.82Co0.15Ti0.03O2 were investigated. Despite significant improvements in electrochemical performance by Al3+ and Ti4+ doping, it was revealed that these cation dopings had no discernible effect on the lattice oxygen stability. Such information suggests that the electrochemical enhancement by Al3+/Ti4+ doping is not attributed to the stabilization of lattice oxygen. This work highlights the importance of independent and quantitative experimental evaluations on kinetic electrochemical properties and thermodynamic stability of lattice oxygen to establish rational guidelines for doping strategy toward high-energy-density and reliable cathode-active materials.

    DOI: 10.1021/acsaem.2c04141

    Web of Science

  8. Revealing Impacts of Anion Defect Species on Fluoride-Ion Conduction of Ruddlesden-Popper Oxyfluoride Ba2ScO3F Reviewed International journal

    Kota MOTOHASHI, Takanori SANADA, Takashi NAKAMURA, Yuta KIMURA, Yoshiharu UCHIMOTO, Koji AMEZAWA

    Electrochemistry   Vol. 90 ( 12 ) page: 127005 - 127005   2022.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Electrochemical Society of Japan  

    DOI: 10.5796/electrochemistry.22-00114

  9. High-temperature ionic logic gates composed of an ionic rectifying solid–electrolyte interface Reviewed

    Takashi Nakamura, Miri Honda, Yuta Kimura, Koji Amezawa

    RSC Advances   Vol. 12 ( 29 ) page: 18501 - 18506   2022.6

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    In this work, high-temperature ionic logic gates composed of ion rectifying YSZ/La<sub>2</sub>NiO<sub>4+δ</sub> junctions are demonstrated.

    DOI: 10.1039/d2ra00710j

  10. V−V Dimerization and Magnetic State of Cobalt Ions in IlmeniteType CoVO3 Reviewed International journal

    Sachiko Kamiyama, Ikuya Yamada, Masayuki Fukuda, Yuichi Okazaki, Takashi Nakamura, Takumi Nishikubo, Masaki Azuma, Hiroyuki Kimura, Hajime Yamamoto

    Inorganic Chemistry   Vol. 61   page: 7841 - 7846   2022.5

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    Language:English   Publishing type:Research paper (scientific journal)  

  11. Thermodynamic Analysis Enables Quantitative Evaluation of Lattice Oxygen Stability in Li-Ion Battery Cathodes Reviewed

    Xue-Yan Hou, Yuta Kimura, Yusuke Tamenori, Kiyofumi Nitta, Hirona Yamagishi, Koji Amezawa, Takashi Nakamura

    ACS Energy Letters   Vol. 7   page: 1687 - 1693   2022.4

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsenergylett.2c00353

  12. Fast fluoride ion conduction of NH4(Mg1-xLix)F3-x and (NH4)2(Mg1-xLix)F4-x assisted by molecular cations Reviewed

    Kota Motohashi, Yosuke Matsukawa, Takashi Nakamura, Yuta Kimura, Naoaki Kuwata, Yoshiharu Uchimoto, Koji Amezawa

    Scientific Reports   Vol. 12 ( 1 ) page: 5955   2022.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    Abstract

    Aiming development of the fast anion conductors, we proposed a new material design using flexible molecular cation as a host cation, and demonstrated it with fluoride ion conduction in NH<sub>4</sub>MgF<sub>3</sub> and (NH<sub>4</sub>)<sub>2</sub>MgF<sub>4</sub> based materials. Dominant fluoride ion conduction with relatively high conductivities of 4.8 × 10<sup>–5</sup> S cm<sup>−1</sup> and 8.4 × 10<sup>–6</sup> S cm<sup>−1</sup> were achieved at 323 K in (NH<sub>4</sub>)<sub>2</sub>(Mg<sub>0.85</sub>Li<sub>0.15</sub>)F<sub>3.85</sub> and NH<sub>4</sub>(Mg<sub>0.9</sub>Li<sub>0.1</sub>)F<sub>2.9</sub>, respectively. It is implied that the molecular cation in the host lattice can assist the anion conduction. Our findings suggest molecular cation-containing compounds can be attractive material groups for fast anion conductors.

    DOI: 10.1038/s41598-022-09835-0

    Other Link: https://www.nature.com/articles/s41598-022-09835-0

  13. In Situ Evaluation of the Influence of Interstitial Oxygen on the Elastic Modulus of La2NiO4 Reviewed

    Yuta Kimura, Takashi Nakamura, Koji Amezawa, Keiji Yashiro, Tatsuya Kawada

    Metals   Vol. 11 ( 12 ) page: 1889 - 1889   2021.11

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:MDPI AG  

    Lattice defects significantly affect the mechanical properties of crystalline metal oxides. The materials for the components of solid oxide fuel cells (SOFCs) are no exception, and hence understanding of the interplay between lattice defects and the mechanical properties of components is important to ensure the mechanical stability of SOFCs. Herein, we performed an in situ evaluation of the temperature and P(O2) dependence of the elastic moduli of La2NiO4 (LN214), a candidate for the cathode material of SOFCs, using the resonance method to understand the influence of interstitial oxygen on its elastic properties. Above 873 K, both the Young’s and shear moduli of LN214 slightly decreased with increasing P(O2), suggesting that these elastic moduli are correlated with interstitial oxygen concentration and decreased with increasing interstitial oxygen. We analyzed the influence of interstitial oxygen on the Young’s modulus of LN214, based on numerically obtained lattice energy. The P(O2) dependence of the Young’s modulus of LN214 was found to be essentially explained by variation in the c-lattice constant, which was triggered by variation in interstitial oxygen concentration. These findings may contribute to a better understanding of the relationship between lattice defects and mechanical properties, and to the improvement of the mechanical stability of SOFCs.

    DOI: 10.3390/met11121889

  14. Experimental Evaluation of Influence of Stress on Li Chemical Potential and Phase Equilibrium in Two-phase Battery Electrode Materials Reviewed

    Yuta KIMURA, Keita FUNAYAMA, Mahunnop FAKKAO, Takashi NAKAMURA, Naoaki KUWATA, Tatsuya KAWADA, Junichi KAWAMURA, Koji AMEZAWA

    Electrochemistry   Vol. 89 ( 4 ) page: 355 - 362   2021.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Electrochemical Society of Japan  

    DOI: 10.5796/electrochemistry.21-00033

  15. Lattice Oxygen Instability in Oxide‐Based Intercalation Cathodes: A Case Study of Layered LiNi1/3Co1/3Mn1/3O2 Reviewed

    Xueyan Hou, Kento Ohta, Yuta Kimura, Yusuke Tamenori, Kazuki Tsuruta, Koji Amezawa, Takashi Nakamura

    Advanced Energy Materials   Vol. 11   page: 2101005 - 2101005   2021.6

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley  

    DOI: 10.1002/aenm.202101005

    Other Link: https://onlinelibrary.wiley.com/doi/full-xml/10.1002/aenm.202101005

  16. La0.8Sr0.2Co1-xNixO3-δ as the Efficient Triple Conductor Air Electrode for Protonic Ceramic Cells Reviewed

    Ning Wang, Hajime Toriumi, Yuki Sato, Chunmei Tang, Takashi Nakamura, Koji Amezawa, Sho Kitano, Hiroki Habazaki, Yoshitaka Aoki

    ACS Applied Energy Materials   Vol. 4 ( 1 ) page: 554 - 563   2021.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsaem.0c02447

  17. Oxygen defect engineering for the Li-rich cathode material Li1.2Ni0.13Co0.13Mn0.54O2−δ Reviewed

    Takashi Nakamura, Kento Ohta, Xueyan Hou, Yuta Kimura, Kazuki Tsuruta, Yusuke Tamenori, Ryotaro Aso, Hideto Yoshida, Koji Amezawa

    Journal of Materials Chemistry A   Vol. 9 ( 6 ) page: 3657 - 3667   2021.1

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    <p>The oxygen vacancy containing Li-rich cathode Li<sub>1.2</sub>Ni<sub>0.13</sub>Co<sub>0.13</sub>Mn<sub>0.54</sub>O<sub>2−δ</sub> showed excellent energy density retention.</p>

    DOI: 10.1039/d0ta09521d

  18. Impact of Oxygen Defects on Electrochemical Processes and Charge Compensation of Li-Rich Cathode Material Li1.2Mn0.6Ni0.2O2−δ Reviewed

    Takashi Nakamura, Kento Ohta, Yuta Kimura, Kazuki Tsuruta, Yusuke Tamenori, Ryotaro Aso, Hideto Yoshida, Koji Amezawa

    ACS Applied Energy Materials   Vol. 3 ( 10 ) page: 9703 - 9713   2020.9

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsaem.0c01303

  19. Influence of Active Material Loading on Electrochemical Reactions in Composite Solid-State Battery Electrodes Revealed by Operando 3D CT-XANES Imaging Reviewed

    Yuta Kimura, Mahunnop Fakkao, Takashi Nakamura, Toyoki Okumura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Mizuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    ACS Applied Energy Materials   Vol. 3 ( 8 ) page: 7782 - 7793   2020.8

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    Designing composite electrodes with optimal microstructure, composition, and choice of active material (AM) as well as solid electrolyte (SE) is critically important for the development of high-performance solid-state batteries (SSBs). To optimize AM loading, which includes loading amount, composition, and dispersion state, and to maximize AM utilization in composite SSB electrodes, we need to precisely understand how the AM loading affects electrochemical reactions taking place in the electrodes. Here, using computed tomography combined with X-ray absorption near edge structure spectroscopy (CT-XANES), we performed operando three-dimensional (3D) observations of electrochemical reactions in composite SSB electrodes with different AM loading amounts to understand the influence of the AM loading on the electrochemical reactions. In the composite electrode with higher AM loading amount, the lower reacted regions were mainly found at the inner parts of the aggregated AM regions. It was suggested that such a reaction distribution resulted from the slow intergranular ion transport between AM particles. In the composite electrode with lower AM loading amount, the electrochemical reaction progressed more homogeneously compared to the one with higher loading. This is probably because the lower AM loading mitigated the AM aggregation and decreased the number of high-resistance AM-AM interfaces that Li ions must pass through. Such a reaction distribution formation due to the slow ion transport between the AM particles can be a serious restriction in composite SSB electrodes. This is in marked contrast to conventional liquid-based lithium ion battery (LIB) electrodes, in which a majority of AM particles can directly exchange Li ions with the surrounding liquid electrolyte. Therefore, the optimal design for composite SSB electrodes can significantly differ from that for liquid-based LIBs. Our analysis technique can provide valuable information to rationally design optimal composite electrodes, and hence we expect that this technique contributes to the further development of high-performance SSBs.

    DOI: 10.1021/acsaem.0c01186

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  20. From Liquid- to Solid-State Batteries: Ion Transfer Kinetics of Heteroionic Interfaces Reviewed

    Manuel Weiss, Fabian J. Simon, Martin R. Busche, Takashi Nakamura, Daniel Schröder, Felix H. Richter, Jürgen Janek

    Electrochemical Energy Reviews   Vol. 3 ( 2 ) page: 221 - 238   2020.6

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1007/s41918-020-00062-7

    Other Link: http://link.springer.com/article/10.1007/s41918-020-00062-7/fulltext.html

  21. 3D Operando Imaging and Quantification of Inhomogeneous Electrochemical Reactions in Composite Battery Electrodes Reviewed

    Yuta Kimura,* Aina Tomura, Mahunnop Fakkao, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Toyoki Okumura, Mizuki Tada, Yoshiharu Uchimoto, and Koji Amezawa

    Journal of Physical Chemistry Letters   Vol. 11   page: 3629 - 3636   2020.4

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  22. Effect of post-deposition annealing in oxygen atmosphere on LiCoMnO4 thin films for 5V lithium batteries Reviewed

    Norikazu Ishigaki, Naoaki Kuwata, Arunkumar Dorai, Takashi Nakamura, Koji Amezawa, Junichi Kawamura

    Thin Solid Films   Vol. 686   page: 137433 - 137433   2019.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.tsf.2019.137433

  23. Evaluation of the Electronic and Local Structure of Mn in Proton-Conducting Oxide, Ca(Zr, Mn)O3-δ, To Elucidate a Direct Hydrogen Dissolution Reaction Reviewed

    Masatsugu Oishi, Takashi Nakamura, Iwao Watanabe, Takashi Yamamoto, Takuya Doi, Toshiaki Ina, Kiyofumi Nitta, Koji Amezawa, Yuji Okuyama

    Journal of Physical Chemistry C   Vol. 123 ( 26 ) page: 16034 - 16045   2019.6

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:AMER CHEMICAL SOC  

    The protonation mechanism in Mn-doped CaZrO3 (CZM), which involves a direct hydrogen dissolution from the surrounding H-2 gas, was investigated by thermogravimetry (TG) and X-ray absorption spectroscopy (XAS). The TG results implied the formation of oxygen vacancies in a H-2 atmosphere. The Mn Kedge XAS spectra indicated a reduction of the Mn ions and local structure variations around the Mn ion, but the Zr K-edge spectra were independent of the surrounding atmosphere. The amount of oxygen vacancies was smaller with respect to the reduction of the Mn ions, suggesting direct dissolution of hydrogen. Unlike many typical perovskite-type proton conductors, protonation by direct dissolution of hydrogen and not hydration was the predominant reaction in Mn-doped CaZrO3. Our experimental results demonstrated that the hydration reaction was suppressed because the oxygen vacancy was stable in the distorted ZrO6 symmetry in the CaZrO3 crystal host, whereas protonation proceeded by the direct dissolution of hydrogen being stabilized near the Mn ions in the interstitial sites at the distorted MnO6 octahedral symmetry. The experimental results showed that the structural configurations around dopants play important roles in the stabilization of protons in perovskite-type CZM materials. We demonstrated a new group of proton conductors that can overcome issues with conventional proton conductors by utilizing the direct hydrogen dissolution reaction.

    DOI: 10.1021/acs.jpcc.9b03897

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  24. Operando Observation of Formation and Annihilation of Inhomogeneous Reaction Distribution in a Composite Electrode for Lithium‐Ion Batteries Reviewed

    Takashi Nakamura, Kazuki Chiba, Mahunnop Fakkao, Yuta Kimura, Kiyofumi Nitta, Yasuko Terada, Yoshiharu Uchimoto, Koji Amezawa

    Batteries and Supercaps   Vol. 2 ( 8 ) page: 688 - 694   2019.6

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:WILEY-V C H VERLAG GMBH  

    The cover feature of Batteries &amp; Supercaps, Vol. 2 Issue 8

    DOI: 10.1002/batt.201900018

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  25. Guidelines for All-Solid-State Battery Design and Electrode Buffer Layers Based on Chemical Potential Profile Calculation Reviewed

    Takashi Nakamura, Koji Amezawa, Jörn Kulisch, Wolfgang G. Zeier, Jürgen Janek

    ACS Applied Materials & Interfaces   Vol. 11   page: 19968 - 19976   2019.5

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acsami.9b03053

  26. Influence of microstructures on conductivity in Tysonite-type fluoride ion conductors Reviewed

    Kota Motohashi, Takashi Nakamura, Yuta Kimura, Yoshiharu Uchimoto, Koji Amezawa

    Solid State Ionics   Vol. 338   page: 113 - 120   2019.5

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    In this study, dense sintered polycrystalline compacts (relative density: >95%)of Tysonite-type fluoride ion conductor, La Ba F , with different grain sizes were prepared by applying the spark plasma sintering method, and their electrical conductivities were evaluated in order to understand the influence of microstructures on the ionic conductivity. The conductivity of the prepared compacts increased when increasing the sintering temperature up to 1273 K, and showed the highest value, e.g. 7.1 × 10 S cm at 300 K, which was much higher than the reported values for sintered compacts of the same material. These were because the application of the spark plasma sintering technique enabled us the high densification of the sintered compacts and the increase in the sintering temperature enhanced the grain growth resulting in the decrease in the grain boundary resistance. The inhibitory effect of grain boundary on the ionic conduction was not significant when the density of the polycrystalline compacts was sufficiently high. On the other hand, when the sintering temperature was higher than 1273 K, small pores were formed along the grain boundaries and the conductivity was degraded with increasing the sintering temperature. Such a decrease in the conductivity could be interpreted by the increase in the grain boundary resistance due to the pore formation by the high temperature sintering. This work demonstrated that, for sintering polycrystalline (La,Ba)F -based fluoride ion conductors, there is an optimum preparation condition to achieve the optimum microstructure i.e. high density, large grain size, and clean grain boundary, for high fluoride ion conduction. 0.93 0.07 2.93 3 −5 −1

    DOI: 10.1016/j.ssi.2019.05.023

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  27. High-valence-state manganate(V) Ba3Mn2O8 as an efficient anode of a proton-conducting solid oxide steam electrolyzer Reviewed

    Hajime Toriumi, Taisei Kobayashi, Satoshi Hinokuma, Toshiaki Ina, Takashi Nakamura, Koji Amezawa, Chunyu Zhu, Hiroki Habasaki, Yoshitaka Aoki

    Inorganic Chemistry Frontiers   Vol. 6 ( 6 ) page: 1587 - 1597   2019.5

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ROYAL SOC CHEMISTRY  

    Herein, high-valence-state Mn(v) oxide, barium manganate(v) (Ba-3(MnO4)(2)), is examined as an anode electrocatalyst of a H+-conducting solid oxide steam electrolysis cell (H-SOEC). Ba-3(MnO4)(2) comprises C-3v-symmetric MnO43- oxo-anions with three long Mn-O bonds and one short Mn-O bond at room temperature. Ba-3(MnO4)(2) caused a conductivity jump by one order of magnitude at approximately 600 degrees C owing to the antiferromagnetic/paramagnetic phase transition, accompanied by a shape change of the tetrahedral MnO43- anions from C-3v to T-d symmetry, as confirmed by the electrical conductivity measurements and the extended X-ray absorption fine structure at an elevated temperature. Hence, the Ba-3(MnO4)(2) base anode of the H-SOEC exhibited improved performance, with anode polarization resistances being lower than those of Sm0.5Sr0.5CoO3, a well-known H-SOEC anode material. Impedance analysis in terms of oxygen and water partial pressure revealed that the superior performance of the Ba-3(MnO4)(2) base anode can be attributed to the extended reaction area. Since abundant unoccupied 3d states of the high-valence-state Mn5+ cations are favorable for charge transfer interactions with water electron donors, thereby facilitating water adsorption, the oxygen evolution reaction could occur directly over the electrode surface, and thus the reaction sites were not limited to the gas-electrode-electrolyte triple phase boundary.

    DOI: 10.1039/c9qi00253g

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  28. Evaluation of electrochemical properties of LaNi <inf>0.6</inf> Fe <inf>0.4</inf> O <inf>3−δ</inf> - Ce <inf>0.9</inf> Gd <inf>0.1</inf> O <inf>1.95</inf> composite as air electrode for SOFC Reviewed

    R. A. Budiman, S. Hashimoto, Y. Fujimaki, T. Nakamura, K. Yashiro, K. Amezawa, T. Kawada

    Solid State Ionics   Vol. 332   page: 70 - 76   2019.4

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    © 2019 Elsevier B.V. The electrochemical properties of the composite electrodes of LaNi 0.6 Fe 0.4 O 3−δ -Ce 0.9 Gd 0.1 O 1.95 in various compositions were measured by electrochemical impedance spectroscopy as a function of temperature and p(O 2 ). The enhancement of area-specific conductivity, σ E , was found higher than that of the single-phase porous LaNi 0.6 Fe 0.4 O 3−δ electrode. σ E greatly depends on their volume ratio, where σ E increases with the increase of the volume fraction of Ce 0.9 Gd 0.1 O 1.95 phase up to 50%. Above 50% of the volume ratio, σ E decreases which could be due to the loss of its surface area density and connectivity between LaNi 0.6 Fe 0.4 O 3−δ particles. The enhancement degree of σ E was evaluated using the transmission line model for the porous-mixed ionic and electronic electrodes. The calculated model is close to the measured σ E , showing that the enhancement of σ E is not only because of the enhancement of ionic conducting pathways but also possibly due to the decrease of the surface reaction resistivity upon contact with the Ce 0.9 Gd 0.1 O 1.95 .

    DOI: 10.1016/j.ssi.2018.12.023

    Scopus

  29. Defect chemical studies on oxygen release from the Li-rich cathode material Li<SUB>1.2</SUB>Mn<SUB>0.6</SUB>Ni<SUB>0.2</SUB>O<SUB>2−δ</SUB> Reviewed

    Takashi Nakamura, Hongze Gao, Kento Ohta, Yuta Kimura, Yusuke Tamenori, Kiyofumi Nitta, Toshiaki Ina, Masatsugu Oishi, Koji Amezawa

    Journal of Materials Chemistry A   Vol. 7   page: 5009 - 5019   2019.2

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    DOI: 10.1039/c8ta12484a

  30. Morphological Effect on Reaction Distribution Influenced by Binder Materials in Composite Electrodes for Sheet-type All-Solid-State Lithium-Ion Batteries with the Sulfide-based Solid Electrolyte Reviewed

    Kezheng Chen, Sae Shinjo, Atsushi Sakuda, Kentaro Yamamoto, Tomoki Uchiyama, Kentaro Kuratani, Tomonari Takeuchi, Yuki Orikasa, Akitoshi Hayashi, Masahiro Tatsumisago, Yuta Kimura, Takashi Nakamura, Koji Amezawa, Yoshiharu Uchimoto

    Journal of Physical Chemistry C   Vol. 123 ( 6 ) page: 3292 - 3298   2019.1

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    In sheet-type all-solid-state lithium-ion batteries with the sulfide-based solid electrolyte, composite electrodes consist of active material, solid electrolyte, conductive additive material, and binder. Thus, they form a three-dimensional ionic and electronic conduction pass. In composite electrodes, the reaction inhomogeneity derived from their morphology exerts a remarkable effect on battery performance. In this study, we prepared sheet-type composite electrodes for all-solid-state lithium-ion batteries with the sulfide-based solid electrolyte using different binder materials with different solvents and investigated the reaction distribution within the electrodes using the 2D-imaging X-ray absorption spectroscopy. Thus, we demonstrated that the dominant factor of the reaction distribution formation is the ionic conduction, depending on the structure of the composite electrode, and that the structure is influenced by the combination between the binder and the solvent used in the preparation of the sheet-type composite electrode.

    DOI: 10.1021/acs.jpcc.8b09569

    Scopus

  31. Electrochemical performance of LaNi0.6Co0.4O3-δ–Ce0.9Gd0.1O1.95 composite electrode and evaluation of its effective reaction length Reviewed

    Riyan Achmad Budiman, Yuya Uzumaki, Shin-ichi Hashimoto, Takashi Nakamura, Keiji Yashiro, Koji Amezawa, Tatsuya Kawada

    Journal of Solid State Electrochemistry   Vol. 22   page: 3955 - 3963   2018.9

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    DOI: 10.1007/s10008-018-4102-0

  32. Energy efficiency of ionic transport through proton conducting ceramic electrolytes for energy conversion applications Reviewed

    Takashi Nakamura, Shusuke Mizunuma, Yuta Kimura, Yuichi Mikami, Kousuke Yamauchi, Tomohiro Kuroha, Noboru Taniguchi, Yoichiro Tsuji, Yuji Okuyama, Koji Amezawa

    Journal of Materials Chemistry A   Vol. 6 ( 32 ) page: 15771 - 15780   2018.6

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:ROYAL SOC CHEMISTRY  

    In this study, the efficiency of ionic transport through proton-conducting ceramic electrolytes for energy conversion applications was discussed while considering the energy losses caused by the mixed ionic and electronic conduction and by the ionic transport resistance. It was shown that high energy efficiency cannot be expected with an extremely thin electrolyte because of the significant energy loss due to the internal current leakage. In the case of a fuel cell with a BaZr0.8Y0.2O3- electrolyte operating at 873 K, the maximum energy efficiency was estimated to be only 82% when the product of the external current density and the electrolyte thickness was 1.7 x 10(-3) A cm(-1). The energy efficiency for the ionic transport in BaZr0.8Y0.2O3- was compared with those for typical oxide ion conductors, i.e. yttria stabilized zirconia and Ce0.9Gd0.1O1.95-, under various fuel cell operating conditions. BaZr0.8Y0.2O3- can provide higher energy efficiency than the oxide ion conductors at lower temperatures and under higher current conditions. For the efficient operation of fuel cells using a proton-conducting ceramic as an electrolyte, lower operating temperatures below 873 K is preferable from the viewpoint of energy loss in the electrolyte. The influence of the partial conductivity variation on the energy efficiency was also discussed. It was shown that not only the increase of ionic conductivity but also the decrease of electronic conductivity could improve the energy efficiency if the electrolyte thickness can be optimized. This means that decreasing electronic conductivity as well as increasing proton conductivity can be an effective strategy to develop highly efficient proton conductors for energy conversion applications.

    DOI: 10.1039/C8TA05373A

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  33. Investigation of rate-determining step of LaNi<SUB>0.6</SUB>Co<SUB>0.4</SUB>O<SUB>3-δ</SUB> film electrode Reviewed

    Riyan Achmad Budiman, Yuya Uzumaki, Shin-ichi Hashimoto, Takashi Nakamura, Keiji Yashiro, Katherine Develos-Bagarinao, Haruo Kishimoto, Katsuhiko Yamaji, Teruhisa Horita, Koji Amezawa, Tatsuya Kawada

    Journal of Solid State Electrochemistry   Vol. 22   page: 2227 - 2235   2018.3

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  34. Effect of cation ordering on the performance and chemical stability of layered double perovskite cathodes Reviewed

    Carlos Bernuy-Lopez, Laura Rioja-Monllor, Takashi Nakamura, Sandrine Ricote, Ryan O'Hayre, Koji Amezawa, Mari-Ann Einarsrud, Tor Grande

    Materials   Vol. 11 ( 2 ) page: 196 - 211   2018.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:MDPI AG  

    The effect of A-site cation ordering on the cathode performance and chemical stability of A-site cation ordered LaBaCo2O5+δ and disordered La0.5Ba0.5CoO3-δ materials are reported. Symmetric half-cells with a proton-conducting BaZr0.9Y0.1O3-δ electrolyte were prepared by ceramic processing, and good chemical compatibility of the materials was demonstrated. Both A-site ordered LaBaCo2O5+δ and A-site disordered La0.5Ba0.5CoO3-δ yield excellent cathode performance with Area Specific Resistances as low as 7.4 and 11.5 Ω·cm2 at 400 °C and 0.16 and 0.32 Ω·cm2 at 600 °C in 3% humidified synthetic air respectively. The oxygen vacancy concentration, electrical conductivity, basicity of cations and crystal structure were evaluated to rationalize the electrochemical performance of the two materials. The combination of high-basicity elements and high electrical conductivity as well as sufficient oxygen vacancy concentration explains the excellent performance of both LaBaCo2O5+δ and La0.5Ba0.5CoO3-δ materials at high temperatures. At lower temperatures, oxygen-deficiency in both materials is greatly reduced, leading to decreased performance despite the high basicity and electrical conductivity. A-site cation ordering leads to a higher oxygen vacancy concentration, which explains the better performance of LaBaCo2O5+δ. Finally, the more pronounced oxygen deficiency of the cation ordered polymorph and the lower chemical stability at reducing conditions were confirmed by coulometric titration.

    DOI: 10.3390/ma11020196

    Scopus

  35. Evaluation of electrical conductivity and oxygen diffusivity of the typical Ruddlesden-Popper oxide Sr<SUB>3</SUB>Fe<SUB>2</SUB>O<SUB>7-δ</SUB> Reviewed

    Yihan Ling, Tianmin Guo, Xiaozhen Zhang, Riyan Achmad Budiman, Yoshinobu Fujimaki, Takashi Nakamura, Bin Lin, Tatsuya Kawada, Koji Amezawa

    Ceramics International   Vol. 43 ( 18 ) page: 16264 - 16269   2017.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER SCI LTD  

    The electrical conductivity (sigma) and oxygen diffusivity of the typical Ruddlesden-Popper oxide Sr3Fe2O7-delta were investigated with the variation of oxygen partial pressure, P(O-2), and temperatures, and thus the results were discussed based on its defect structure. The a increases with the increase of P(O-2) and a positive slope of log sigma depend on P(O-2) is close to 1/4 with the small polaron conduction, where the mobility mu(p) are between 0.01 and 0.0(2) cm(2) V-1 s(-1) regardless of temperature and P(O-2). Oxygen diffusivity derived from the electrical conductivity relaxation (ECR) after an abrupt change of P(O-2) increased with the increase P(O-2) and temperature. A new pulse isotope O-18-O-16 exchange (PIE) at 623-773 K was carried in order to rapidly determine the tracer oxygen surface reaction coefficient. The numerical relationship of oxygen diffusivity measured by ECR and PIE measurements was successfully established by the ambipolar diffusion theory and defect chemical analysis.

    DOI: 10.1016/j.ceramint.2017.08.211

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  36. Oxygen reduction reaction process of LaNi0.6Fe0.4O3 (-) (delta) film - porous Ce0.9Gd0.1O1.95 heterostructure electrode Reviewed

    R. A. Budiman, S. Hashimoto, T. Nakamura, K. Yashiro, K. D. Bagarinao, H. Kishimoto, K. Yamaji, T. Horita, K. Amezawa, T. Kawada

    SOLID STATE IONICS   Vol. 312   page: 80 - 87   2017.12

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    Relevant factors affecting an oxygen reduction reaction (ORR) in a heterostructure electrode comprising a Ce09Gd0.1O1.95 porous layer on LaNi0.6Fe0.4O3 (-) (delta) film electrode were evaluated using electrochemical impedance spectroscopy and isotope depth profile analyses. Despite the LaNi0.6Fe0.4O3 (-) (delta) film - porous Ce0.9Gd0.1O1.95 electrode having higher interfacial conductivity, sigma(E), compared to a bare LaNi0.6Fe0.4O3 (-) (delta) film electrode, sigma(E) behavior as a function of p(O-2) was similar to each measured temperature. This exhibits a good correlation with the isotopic oxygen depth profile analysis where the evaluated surface oxygen exchange coefficient, k*, showed enhancement compared to bare LaNi0.6Fe0.4O3 (-) (delta) film and exhibited the same behavior on p(O-2). Based on the analyses, there are two plausible reasons for this enhancement: (a) the formation of triple phase boundaries at the junction of LaNi0.6Fe0.4O3 (-) (delta) film, porous Ce0.9Gd0.1O1.95, and gas phase, where the incorporation process during an ORR process takes place via the porous Ce0.9Gd0.1O1.95; and (b) a modification of the subsurface layer just below the film surface where the presence of diffused Ce and Gd appears to accelerate the ORR process.

    DOI: 10.1016/j.ssi.2017.10.007

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  37. Electronic conduction mechanism and defect chemical model of LaNi0.4Fe0.6O3- (delta) Reviewed

    R. A. Budiman, H. J. Hong, S. Hashimoto, T. Nakamura, K. Yamaji, K. Yashiro, K. Amezawa, T. Kawada

    SOLID STATE IONICS   Vol. 310   page: 148 - 153   2017.11

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    In order to elucidate the electronic conduction mechanism and defect chemical model of LaNi0.4Fe0.6O3 - delta at high temperatures, electrical conductivity (sigma), Seebeck coefficient (S), and oxygen vacancy concentration (delta) of LaNi0.4Fe0.6O3 (-) (delta) were measured as a function of oxygen partial pressure (p(O-2)) and temperature. Relatively large a and small positive S values are observed, which indicates the contribution of ionic conduction is negligibly small to thermoelectric power and the major electronic carrier is a hole. From the analysis of a and S, it is expected that the LaNi0.4Fe0.6O3 - delta has small polaron hopping conduction mechanism where an electron is localized on the Fe. The slope of delta vs p(O-2) shows a minimum value near the stoichiometric composition and the delta increases as p(O-2) reduces and temperature increases. The relationship between delta vs. log p(O-2) is analyzed by a localized electron model and the behavior of the oxygen nonstoichiometry of LaNi0.4Fe0.6O3 (-) (delta) can be explained.

    DOI: 10.1016/j.ssi.2017.08.014

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  38. Nonstoichiometry and the Origin of Electrochemical Properties of Functional Oxides for Energy Conversion and Storage Technologies Reviewed

    Takashi Nakamura

    Electrochemistry   Vol. 85 ( 9 ) page: 552 - 558   2017.9

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELECTROCHEMICAL SOC JAPAN  

    It is well known and accepted that oxygen nonstoichiometry, the deviation of oxygen content from the stoichiometric composition, significantly affects electrochemical properties of functional oxides. Therefore, it is important to understand the defect formation mechanism and the influences of defect species on electrochemical properties. In this paper, layered perovskite type La2NiO4-based oxides were investigate'd as a model system. Oxygen nonstoichiometry was evaluated by thermogravimetry and coulometric titration and analyzed based on defect chemistry. To understand the governing factor for interstitial oxygen formation, thermochemical deformation and electronic structural variation were evaluated by in -situ X-ray diffraction measurement and soft X-ray absorption spectroscopy. While La2NiO4+delta can deform flexibly to accept interstitial oxygen, more than 90% of interstitial sites are not occupied under equilibrium state. This strongly indicates the restriction due to crystal structure is not dominant for interstitial oxygen formation. Ni L-edge and 0 K-edge spectra reveal that lattice oxygen works as a sink/source of electronic carrier for the interstitial oxygen formation. These analyses indicate that the interstitial oxygen formation in La2NiO4+delta is mainly limited by the electronic structural restriction. This hypothesis is supported by the fact that electron doping increases the equilibrium concentration of interstitial oxygen. (C) The Electrochemical Society of Japan, All rights reserved.

    DOI: 10.5796/electrochemistry.85.552

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  39. Defect chemistry and thermodynamic properties of proton dissolution into BaZr(0.9)Y(0.1)o(3-) (delta) Reviewed

    Genki Imai, Takashi Nakamura, Koji Amezawa

    SOLID STATE IONICS   Vol. 303   page: 12 - 15   2017.5

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    Proton concentration in BaZr0.9Y0.1O3- (delta) was measured by highly-accurate thermogravimetry as functions of temperature and p(H2O), and thermodynamic properties of the proton dissolution were discussed. Apparent Gibbs free energy change of the proton dissolution reaction changes with proton concentration even at a constant temperature. This means the proton dissolution in BaZr0.9Y0.1O3- (delta) is not ideal-solution-like. The deviation from the ideal solution became more significant with increasing temperature i.e. decreasing the proton concentration. This indicated the interaction between oxygen vacancies or electron hole, dopant-defect interaction, or lattice deformation may cause the proton dissolution in BaZr0.9Y0.1O3- (delta) especially at higher temperature. (C) 2017 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.ssi.2017.02.004

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  40. Operando Soft X-ray Absorption Spectroscopic Study on a Solid Oxide Fuel Cell Cathode during Electrochemical Oxygen Reduction Reviewed

    Takashi Nakamura, Ryo Oike, Yuta Kimura, Yusuke Tamenori, Tatsuya Kawada, Koji Amezawa

    CHEMSUSCHEM   Vol. 10 ( 9 ) page: 2008 - 2014   2017.5

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:WILEY-V C H VERLAG GMBH  

    An operando soft X-ray absorption spectroscopic technique, which enabled the analysis of the electronic structures of the electrode materials at elevated temperature in a controlled atmosphere and electrochemical polarization, was established and its availability was demonstrated by investigating the electronic structural changes of an La2NiO4+ dense-film electrode during an electrochemical oxygen reduction reaction. Clear O K-edge and Ni L-edge X-ray absorption spectra could be obtained below 773K under an atmospheric pressure of 100ppm O-2/He, 0.1% O-2/He, and 1% O-2/He gas mixtures. Considerable spectral changes were observed in the O K-edge X-ray absorption spectra upon changing the PO2 and application of electrical potential, whereas only small spectral changes were observed in Ni L-edge X-ray absorption spectra. A pre-edge peak of the O K-edge X-ray absorption spectra, which reflects the unoccupied partial density of states of Ni3d-O2p hybridization, increased or decreased with cathodic or anodic polarization, respectively. The electronic structural changes of the outermost orbital of the electrode material due to electrochemical polarization were successfully confirmed by the operando X-ray absorption spectroscopic technique developed in this study.

    DOI: 10.1002/cssc.201700237

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  41. Visualization of the reaction distribution in a composite cathode for an all-solid-state lithium-ion battery Reviewed

    Mahunnop Fakkao, Kazuki Chiba, Yuta Kimura, Takashi Nakamura, Toyoki Okumura, Kiyofumi Nitta, Yasuko Terada, Yoshiharu Uchimoto, Koji Amezawa

    Journal of The Ceramoic Society of Japan   Vol. 125 ( 4 ) page: 299 - 302   2017.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:CERAMIC SOC JAPAN-NIPPON SERAMIKKUSU KYOKAI  

    In this work, we directly observed the reaction distribution formed in a composite cathode of the all-solid-state lithium-ion battery (ASSLIB) LiCoO2/Li2.2C0.8B0.2O3|Li2.2C0.8B0.2O3|PEO|Li during charging by using the two-dimensional X-ray absorption spectroscopy (2D-XAS) at Co K-edge. The two-dimensional mapping of the state of charge in a composite cathode indicated that the reaction distribution was formed during charging process in the in-plane direction due to the disconnection in electron pathway at cracks. It was experimentally confirmed that the 2D-XAS technique was a useful tool for evaluating the reaction distribution in a composite cathode of an ASSLIB and investigating the influence factors for the formation of the reaction distribution. (C) 2017 The Ceramic Society of Japan. All rights reserved.

    DOI: 10.2109/jcersj2.16253

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  42. Visualization of Inhomogeneous Reaction Distribution in the Model LiCoO2 Composite Electrode of Lithium Ion Batteries Reviewed

    Takashi Nakamura, Toshiki Watanabe, Yuta Kimura, Koji Amezawa, Kiyofumi Nitta, Hajime Tanida, Koji Ohara, Yoshiharu Uchimoto, Zempachi Ogumi

    Journal of Physical Chemistry C   Vol. 121 ( 4 ) page: 2118 - 2124   2017.2

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    Two-dimensional X-ray absorption spectroscopy was carried out to observe the reaction distribution in a LiCoO2 composite electrode from the shift of the peak top energy in Co K-edge X-ray absorption spectra. The influence of ionic transportation to the inhomogeneous reaction was evaluated by using the model electrode, which sandwiched the LiCoO2 composite electrode between an aluminum foil and a polyimide ion blocking layer. When the model electrode was charged with the currents of 6, 9, and 12 mA cm(-2), the observed capacities were 51, 20, and 12 mAh g(-1) and the charged areas visualized from the shift of the peak top energy in Co K-edge X-ray absorption spectra were formed within ca. 700, 500, and 200 mu m from the edge of the electrode, respectively. The observed reaction distribution indicated that the electrochemically active region decreases with increasing the current density because of the large potential loss of the electrochemical processes.

    DOI: 10.1021/acs.jpcc.6b12133

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  43. The influence of crystal orientation on the change in Li chemical potential of LiCoO2 under mechanical stress Reviewed

    Mahunnop Fakkao, Yuta Kimura, Keita Funayama, Takashi Nakamura, Naold Kuwata, Junichi Kawamura, Tatsuya Kawada, Koji Amezawa

    Solid State Ionics   Vol. 299   page: 8 - 12   2017.1

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    Change of the lithium chemical potential in a crystalline LiCoO2 with the application of a mechanical stress was discussed based on the results of electromotive force (emf) measurements between preferentially-oriented LiCoO2 films on Li0.33La0.55TiO3 solid electrolytes under mechanical stress. [001]-oriented LiCoO2 films with different degrees of orientation were prepared, and it was investigated how the direction of mechanical stress to the crystal lattice affects emf. It is found that emf emerged when mechanical stress was applied. The magnitude of emf under stress was dependent not only on the magnitude of applied stress but also the degree of the film orientation. This clearly demonstrated that the crystal orientation, i.e. the direction of mechanical stress to the crystal, affects the lithium chemical potential. (C) 2016 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.ssi.2016.10.011

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  44. Bismuth and indium co-doping strategy for developing stable and efficient barium zirconate-based proton conductors for high-performance H-SOFCs Reviewed

    Yihan Ling, Hui Chen, Jinan Niu, Fang Wang, Ling Zhao, Xuemei Ou, Takashi Nakamura, Koji Amezawa

    Journal of the European Ceramic Society   Vol. 36 ( 14 ) page: 3423 - 3431   2016.11

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    High-temperature proton conductors gained ever-increasing interest as electrolyte materials alternative to oxygen-ion conductors due to their high conductivity associated with low activation energy at reduced temperatures. In this study, we reported our findings on chemically stable, easily sintered and highly proton-conductive BaZrO3 oxides with Bi2O3 and In2O3 co-addition as electrolyte materials for proton conducting solid oxide fuel cells (H-SOFCs). Among the composition series, BaZr0.75In0.2Bi0.05O3-delta (BZIB5) exhibited the improved sinterability and good conductivity. Correspondingly, high-temperature gravimetry results indicated that the concentrations of protonic defect and oxygen vacancy strongly depended on P(H2O) and temperature rather than P(O-2). Importantly, single cells with 12-mu m-dense BZIB5 electrolyte films were successfully fabricated, and achieved high performance with the maximum power density of 0.34 Wcm(-2) at 700 degrees C. The encouraging results demonstrated that BZIB5 is a promising candidate as the electrolyte material for high performance H-SOFCs. (C) 2016 Elsevier Ltd. All rights reserved.

    DOI: 10.1016/j.jeurceramsoc.2016.05.027

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  45. Oxygen Nonstoichiometry and Thermodynamic Explanation of Large Oxygen-Deficient Ruddlesden-Popper Oxides LaxSr3-xFe2O7- Reviewed

    Yihan Ling, Fang Wang, Yusuke Okamoto, Takashi Nakamura, Koji Amezawa

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY   Vol. 99 ( 11 ) page: 3792 - 3801   2016.11

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:WILEY-BLACKWELL  

    The oxygen nonstoichiometry of large oxygen-deficient Ruddlesden-Popper oxides LaxSr3-xFe2O7- (LSFO7-x) (x=0, 0.25, 0.5) was measured by the high-temperature gravimetry and the coulometric titration. In the composition series, the P(O-2) dependencies exhibited typical plateaus at =(2-[LaSr]2. Meanwhile, La0.5Sr2.5Fe2O7- showed the smallest oxygen nonstoichiometry and was the most thermochemically stable compound against P(O-2), temperature, and the La content. Based on the defect equilibrium model and the statistical thermodynamic calculation derived oxygen nonstoichiometric data, the substitution of La for Sr-site can promote the forward reaction of oxygen incorporation, the backward reaction of the disproportionation of the charge carriers, and oxygen redistribution between the O1 and O3 sites, resulting in the reduction of oxygen-deficient and the lower decomposition P(O-2). The obtained thermodynamic quantities of the partial molar enthalpy of oxygen, hO-hO degrees and the partial molar entropy of oxygen, sO-sO degrees, calculated from the statistical thermodynamic calculation are in good agreement with those using the Gibbs-Helmholtz equation.

    DOI: 10.1111/jace.14410

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  46. In-situ Simultaneous Soft X-ray Absorption and Emission Spectroscopy under Controlled Atmosphere and Temperature Reviewed

    Ryo Oike, Yusuke Okamoto, Takashi Tokushima, Takashi Nakamura, Koji Amezawa

    Electrochemisty   Vol. 84 ( 10 ) page: 793 - 796   2016.10

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    In-situ simultaneous measurement technique of soft X-ray absorption and X-ray emission spectroscopy, which was available for atmospheric pressure and high temperature, was developed. This technique is expected to provide direct information about electronic structures, both occupied and unoccupied pDOS, of functional materials under controlled atmospheric and temperature conditions. In this work, this technique was applied to simultaneously measure O K-edge X-ray absorption and X-ray emission spectra of LaCoO3-based oxides under various oxygen partial pressure and temperatures. Clear O K-edge spectra could be obtained even in 1 bar of 100 ppm O-2-He, 0.1%O-2-He and 1%O-2-He atmospheres below 873 K. The changes of the O K-edge X-ray absorption and X-ray emission spectra due to the changes of oxygen partial pressure and temperature were discussed in terms of changes of defect concentrations and spin states of the oxides. Availability of the developed in-situ simultaneous spectroscopic technique was successfully demonstrated. (C) The Electrochemical Society of Japan, All rights reserved.

    DOI: 10.5796/electrochemistry.84.793

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  47. Oxygen nonstoichiometry and transport properties of LaNi0.6Co0.4O3-delta Reviewed

    R. A. Budiman, Y. Uzumaki, H. J. Hong, T. Miyazaki, S. Hashimoto, T. Nakamura, K. Yashiro, K. Amezawa, T. Kawada

    SOLID STATE IONICS   Vol. 292   page: 52 - 58   2016.9

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    The oxygen nonstoichiometry of the perovskite-type oxide, LaNi0.6Co0.4O3-delta, was measured at various temperatures and oxygen partial pressures (p(O-2)) by high temperature gravimetry and coulometric titration. The oxygen nonstoichiometry appeared independent of p(O-2) in the range of 10(-4) bar &gt; p(O-2), which was in good agreement with the tendency of lattice parameter determined by the high-temperature X-ray diffraction (HT-XRD). The oxygen nonstoichiometry behavior was analyzed using the defect equilibrium model assuming delocalized electron. In addition, the diffusion coefficient, D*, and the surface reaction rate constant, k*, were obtained by the isotope exchange and secondary ion mass spectrometry. The Dv estimated from the D* showed similarity with those reported for other perovskite oxides which supported the reliability of delta determined in this work. (C) 2016 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.ssi.2016.05.005

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  48. Oxygen nonstoichiometry and thermodynamic quantities in the Ruddlesden-Popper oxides LaxSr3 (-) xFe2O7-delta Reviewed

    Yihan Ling, Fang Wang, Yusuke Okamoto, Takashi Nakamura, Koji Amezawa

    SOLID STATE IONICS   Vol. 288   page: 298 - 302   2016.5

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    Oxygen nonstoichiometry in the Ruddlesden-Popper type oxides LaxSr3 (-) xFe2O7 - (delta) (x = 0, 0.25 and 0.5) was determined by means of the high temperature gravimetry and the coulometric titration. The measurements were carried out in the temperature range between 773 and 1073 K and the P(O-2) range between 10(-40) and 1 bar. The P(02) dependencies of the oxygen nonstoichiometry exhibited typical plateaus at delta similar to 1.0 for Sr3Fe2O7 (- delta), delta similar to 0.875 for La0.25Sr2.75Fe2O7 (- delta), and delta similar to 0.75 for La0.5Sr2.5Fe2O7 - (delta), where the average oxidation state of iron is 3+. In the LaxSr3 (-) xFe2O7 - (delta) series, La0.5Sr2.5Fe2O7 - (delta) showed the smallest oxygen nonstoichiometry and was the most thermochemically stable compound against on P(O-2), temperature, and the La content. Thermodynamic quantities of the partial molar enthalpy of oxygen, h(O) - h(O)degrees, and the partial molar entropy of oxygen, s(O) - s(O)degrees, were calculated from measured nonstoichiometric data. The behavior of oxygen nonstoichiometry and thermodynamic quantities indicates that the ideal-solution-like defect formation is established (La,Sr)(3)Fe2O7 in the oxygen deficient region. (C) 2016 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.ssi.2016.01.016

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  49. Tailoring the chemical stability of cobalt-rich perovskite mixed conductor Reviewed

    Fang Wang, Koki Igarashi, Takashi Nakamura, Keiji Yashiro, Junichiro Mizusaki, Koji Amezawa

    Solid State Ionics   Vol. 288   page: 2 - 5   2016.5

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    In this paper we try to tailor the chemical stability of cobalt-rich perovsldte Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) by B-site doping Sb. The chemical stability of Ba0.5Sr0.5Co0.8Fe0.1Sb0.1O3-delta (BSCFS) was investigated by studying the oxygen nonstoichiometry, crystal structure and oxidation state by means of coulometric titration, high temperature X-ray diffraction (HT-XRD) and soft-X-ray absorption spectroscopy (s-XAS) in Various oxygen pressure (p(O-2)) and temperatures. The results prove that chemical stability of BSCFS is successfully improved in intermediate temperature solid oxide fuel cell working condition owing to Co valence change which is controlled by high valence cation doping. (C) 2016 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.ssi.2016.01.018

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  50. Electromotive force measurements of LiCoO2 electrode on a lithium ion-conducting glass ceramics under mechanical stress Reviewed

    Keita Funayama, Takashi Nakamura, Naoaki Kuwata, Junichi Kawamura, Tatsuya Kawada, Koji Amezawa

    Solid State Ionics   Vol. 285   page: 75 - 78   2016.2

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    Two LiCoO2 dense film electrodes were prepared on both surfaces of a lithium ion-conducting glass ceramics, and electromotive force measurements were, preformed between the film electrodes under mechanical compressive and tensile stresses by four-point bending tests. Electromotive force appeared immediately after applying the stress and disappeared after releasing the stress. The larger stress was applied, the larger electromotive force was observed. These results clearly demonstrated that the lithium chemical potential in the LiCoO2 electrode varies under mechanical stress. The influence of the mechanical stress on the lithium chemical potential was discussed based on the relation between the CoO2 interlayer distance and the lithium concentration in LiCoO2. (C) 2015 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.ssi.2015.09.009

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  51. Theoretical study on temperature effect of electronic structure and spin state in LaCoO3 by using density functional theory Reviewed

    Takayoshi Ishimoto, Yumi Ito, Tomofumi Tada, Ryo Oike, Takashi Nakamura, Koji Amezawa, Michihisa Koyama

    Solid State Ionics   Vol. 285   page: 195 - 201   2016.2

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    We analyzed the X-ray absorption spectra (XAS) of Co 2p orbital in LaCoO3 by using density functional theory method to understand the temperature effect on the electronic structures, especially low-spin (LS), intermediate-spin (IS), and high-spin (HS) states of Co3+ ion. We considered the lattice change, thermal excitation of electrons, and displacement of atoms from equilibrium position in LaCoO3 as a temperature effect in this study. We observed negligible change in the shape of Co 2p XAS of LaCoO3 for each LS, IS, and HS state associated with the lattice expansion due to temperature increase, while different spectral features for LS, IS, and HS states were observed. The change of spectra observed by in situ XAS measurement of LaCoO3 at Co L-II- and L-III-edges would be due to the increase in HS and decrease in LS and IS at higher temperature. In addition, the geometry change by thermal displacement of atomic position was analyzed by using first-principles molecular dynamics calculation. Our results indicated that the electronic structure is sensitively changed by the change of Co-O bond distance due to the displacement of atoms from the equilibrium position at studied temperature when the spin state was IS. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

    DOI: 10.1016/j.ssi.2015.08.017

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  52. The determining factor for interstitial oxygen formation in Ruddlesden-Popper type La2NiO4-based oxides Reviewed

    Takashi Nakamura, Ryo Oike, Yihan Ling, Yusuke Tamenori, Koji Amezawa

    Physical Chemistry Chemical Physics   Vol. 18 ( 3 ) page: 1564 - 1569   2016.1

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    The interstitial oxygen formation mechanism in La2NiO4-based oxides was studied using soft X-ray absorption spectroscopy. When the interstitial oxygen concentration increased, the pre-edge peak of O K-edge spectra increased while Ni L-edge spectra was almost invariant. These spectral changes strongly suggest the significant contribution of ligand oxygen to interstitial oxygen formation by providing/accepting electronic charge carriers. The variation of the integrated peak intensity of the O K-edge strongly suggests that interstitial oxygen formation is determined by the equilibrium unoccupied pDOS of ligand oxygen. From this hypothesis, we propose that modulating the electronic structure is the key to control the capability of interstitial oxygen formation in La2NiO4-based oxides.

    DOI: 10.1039/c5cp05993c

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  53. Effect of Mechanical Stress on Lithium Chemical Potential in Positive Electrodes and Solid Electrolytes for Lithium Ion Batteries Reviewed

    Keita Funayama, Takashi Nakamura, Naoaki Kuwata, Junichi Kawamura, Tatsuya Kawada, Koji Amezawa

    Electrochemistry   Vol. 83 ( 10 ) page: 894 - 897   2015.10

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    Effects of mechanical stress on lithium chemical potential in electrodes and electrolytes for all-solid-state lithium ion batteries were investigated. Dense film electrodes of LiCoO2 or LiMn2O4 were symmetrically deposited on both surfaces of a plate of various solid state lithium ion conductors, such as Li0.29La0.57TiO3, Li2La3Zr2O12 and Li1+x+yAlx(Ti,Ge)(2-x)SiyP3-yO12. Mechanical stress was applied to the specimen by four points bending tests while measuring electromotive force (EMF) between the two electrodes. EMF proportional to the applied stress was observed. EMF was significantly dependent on the electrode material, but was almost independent of the electrolyte material. These results indicated that lithium chemical potential varied under mechanical stress both in the electrode and electrolyte but the influence of mechanical stress appeared more notably in the electrode than the electrolyte. The lithium chemical potential changes in the electrode and the electrolyte under mechanical stress were discussed based on the idea of local equilibrium. (C) The Electrochemical Society of Japan, All rights reserved.

    DOI: 10.5796/electrochemistry.83.894

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  54. Electrochemical Study of LaNi0.6Fe0.4O3-delta Film Electrode Reviewed

    R. A. Budiman, T. Miyazaki, S. Hashimoto, T. Nakamura, K. Yashiro, K. Amezawa, T. Kawada

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY   Vol. 162 ( 14 ) page: F1445 - F1450   2015

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    Electrochemical properties of LaNi0.6Fe0.4O3-delta film electrodes were measured by electrochemical impedance spectroscopy as functions of temperature, T, oxygen partial pressure, p(O-2), and thickness of the film electrode to determine the rate determining step of the oxygen reduction process. From its chemical capacitance, the oxygen reduction process was limited on the surface, which had good agreement with the isotope exchange depth profile measurement. It was also confirmed that the different thickness of the film electrode showed the total capacitance completely belong to the oxygen nonstoichiometric change of the LNF film electrodes. (C) 2015 The Electrochemical Society. All rights reserved.

    DOI: 10.1149/2.0391514jes

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  55. Oxygen nonstoichiometry, the defect equilibrium model and thermodynamic quantities of the Ruddlesden-Popper oxide Sr3Fe2O7-delta Reviewed

    Yihan Ling, Fang Wang, Riyan Achmad Budiman, Takashi Nakamura, Koji Amezawa

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS   Vol. 17 ( 11 ) page: 7489 - 7497   2015

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    Oxygen nonstoichiometry of the Ruddlesden-Popper oxide Sr3Fe2O7-delta was measured at intermediate temperatures (773-1073 K) by coulometric titration and high temperature gravimetry. The oxygen non-stoichiometric behavior was analyzed using the defect equilibrium model with localized electrons. From the defect chemical analysis, estimated oxygen vacancy concentration at the O3 sites increases and at the O1 sites decreases with the increasing temperature. This characteristic behavior is considered to be caused by the redistribution of oxygen and vacancies between the O1 and O3 sites. The obtained thermodynamic quantities of the partial molar enthalpy of oxygen, h(o) - h(o)degrees, and the partial molar entropy of oxygen, s(o) - s(o)degrees, calculated from the Gibbs-Helmholtz equation are in good agreement with those from the statistical thermodynamic calculation based on the defect equilibrium model, indicating that the proposed defect equilibrium model is reasonable.

    DOI: 10.1039/c4cp05719h

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  56. The effect of interstitial oxygen formation on the crystal lattice deformation in layered perovskite oxides for electrochemical devices Reviewed

    Takashi Nakamura, Yihan Ling, Koji Amezawa

    Journal of Materials Chemistry A   Vol. 3 ( 19 ) page: 10471 - 10479   2015

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    In order to understand the behaviour of the crystal lattice deformation induced by the interstitial oxygen formation in La-2(Ni0.9M0.1)O4+delta (M = Fe, Co, and Cu), thermogravimetry, coulometric titration, and high temperature X-ray diffraction measurements were carried out in the temperature range between 873 and 1173 K and the P(O-2) range between 10(-24) and 1 bar. Compared with non-doped La2NiO4+delta, La-2(Ni0.9Fe0.1)O4+delta and La-2(Ni0.9Co0.1)O4+delta have more interstitial oxygen while La-2(Ni0.9Cu0.1) O4+delta has less. The crystal structure at high temperatures was analyzed assuming the tetragonal symmetry, I4/mmm, for all compositions. With increasing interstitial oxygen concentration, the lattice parameter perpendicular to the perovskite layer increased and that parallel to the perovskite layer decreased. Consequently, the change of the cell volume by the interstitial oxygen formation was small, meaning that macroscopic chemical expansion was small. Chemical and thermal deformation behaviour could be explained by assuming a linear relation of the lattice constants to T and delta. Apparent and true thermal expansion coefficients and chemical expansion coefficient were calculated and compared with oxygen deficient perovskite-and fluorite-type oxides. It was found that the chemical expansion coefficients of La2NiO4-based oxides which are induced by the formation/annihilation of interstitial oxygen are smaller than those of perovskite- and fluorite-type oxides which are induced by the formation/annihilation of oxygen vacancies.

    DOI: 10.1039/c5ta01504a

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  57. Evaluation of High-temperature Electronic and Electrochemical Properties of the Strained La1-xSrxCoO3-delta Films Prepared by a Pulsed Laser Deposition Technique Reviewed

    Takashi Nakamura, Daisuke Hemmi, Katsutoshi Iwamoto, Nobuyuki Hirai, Maya Sase, Atsushi Unemoto, Fumimasa Horikiri, Yoshihiro Mori, Kazuhisa Sato, Keiji Yashiro, Tatsuya Kawada, Junichiro Mizusaki

    ELECTROCHEMISTRY   Vol. 82 ( 10 ) page: 884 - 890   2014.10

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    To evaluate the electrochemical and electronic properties of strained film specimen, La1-xSrxCoO3-delta (x = 0.4, 0.5) films were evaluated by means of electrochemical impedance spectroscopy and electrical conductivity measurement. Dense polycrystalline La1-xSrxCoO3-delta films were fabricated on a polycrystalline Ce0.9Gd0.1O1.95 substrate by a pulsed laser deposition technique. Obtained film was (001) oriented in the pseudo-cubic perovskite unit cell and tensile strained along out-of-plane direction. It was confirmed that oxygen nonstoichionnetric behavior of the film was different from that of bulk La1-xSrxCoO3-delta and analyzed by assuming localized and itinerant electronic states. Localized electron model with Co2+, Co3+ and Co4+ shows good agreement with observed oxygen nonstoichiometry of the film. The electrical conductivity of La1-xSrxCoO3-delta films show positive temperature coefficient like semiconductors although that of the bulk La1-xSrxCoO3-delta shows a negative temperature coefficient like metals. This indicates localized electron for the La1-xSrxCoO3-delta film and itinerant electron for the bulk La1-xSrxCoO3-delta. Although detail mechanism of the strain effect is not fully understood, both oxygen nonstoichiometric and electronic conduction behaviors of the film could be explained by assuming localized electronic state. Plausible electronic structure of the film was proposed and compared with that of bulk La1-xSrxCoO3-delta. (C) The Electrochemical Society of Japan, All rights reserved.

    DOI: 10.5796/electrochemistry.82.884

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  58. Analysis of structural phase transition behavior of Ln(2)NiO(4) (+) (delta) (Ln: Nd, Pr) with variation of oxygen content Reviewed

    Eiki Niwa, Kazuya Wakai, Tetsuya Hon, Takashi Nakamura, Keiji Yashiro, Junichiro Mizusaki, Takuya Hashimoto

    SOLID STATE IONICS   Vol. 262   page: 724 - 727   2014.9

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    The orthorhombic-tetragonal structural phase transition behaviors of Pr2NiO4 (+) (delta) and Nd2NiO4 (+ delta) were investigated by DSC and TG-DTA under controlled oxygen partial pressure, P(O-2), and their difference was discussed. A discrete weight variation originating from the variation of oxide ion content, Delta delta, was observed during the phase transition in both Pr2NiO4 (+) (delta) and Nd2NiO4 (+) (delta). The Delta delta of Pr2NiO4 (+) (delta) was larger than that of Nd2NiO4 (+) (delta), and the Delta delta of Pr2NiO4 (+) (delta) increased with decreasing P(O-2), while that of Nd2NiO4 (+) (delta) was independent on P(O-2), suggesting that not only the valence of Ni but also that of Pr changed during the phase transition in Pr2NiO4 (+) (delta) (C) 2014 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.ssi.2014.03.031

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  59. Evaluation of the effective reaction zone in a composite cathode for lithium ion batteries Reviewed

    Takashi Nakamura, Toshiki Watanabe, Koji Amezawa, Hajime Tanida, Koji Ohara, Yoshiharu Uchimoto, Zempachi Ogumi

    SOLID STATE IONICS   Vol. 262   page: 66 - 69   2014.9

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    Reaction distribution in the composite electrode of LiCoO2, an acetylene black and an organic binder was evaluated by two-dimensional X-ray absorption spectroscopy (XAS). The valence change of Co ion in LiCoO2 due to the Li de-intercalation during charging was evaluated as the change of the absorption energy of Co K-edge. To demonstrate the reaction distribution due to ionic transportation in the composite cathode, a composite electrode laminated by an aluminum foil and a polyhnide film was fabricated in this study. After charging, clear shifts of the absorption energy was observed. The reaction distribution was evaluated by evaluating the peak top energy of Co K-edge as a function of the distance from the edge of the laminated cathode. Two-dimensional mapping of the reaction distribution revealed that the electrochemically active area expands about 700 mu m from the edge of the electrode under the charging condition of 0.2 C. This is consistent with a result of electrochemical charging test showing only 42% of the theoretical capacity with the current rate of 0.2 C. (C) 2013 Elsevier BM. All rights reserved.

    DOI: 10.1016/j.ssi.2013.10.013

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  60. Effect of Nb doping on the chemical stability of BSCF-based solid solutions Reviewed

    Fang Wang, Takashi Nakamura, Keiji Yashiro, Junichiro Mizusaki, Koji Arnezawa

    Solid State Ionics   Vol. 262   page: 719 - 723   2014.9

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    The effects of Nb doping on the chemical stability of Ba0.5Sr0.5Co0.8Fe0.2O3 - delta based solid solutions under high oxygen partial pressure (p(O-2)) and CO2-containing atmospheres were studied. BSCF and Ba0.5Sr0.5Co0.9Nb0.1O3 - delta (BSCN) and Ba0.5Sr0.5Co0.8Fe0.1Nb0.1O3 (- delta) (BSCFN) were prepared and investigated by using TG-DTA analysis under p(O-2) = 1 and 10(-3) bar with or without CO2. The results showed that the Nb substitution effectively improved the chemical stability under high oxidation condition and also improved the CO2-tolerance of BSCF-based materials. (C) 2014 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.ssi.2014.01.045

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  61. Development of in situ soft X-ray absorption spectroscopic technique under high temperature and controlled atmosphere Reviewed

    Ryo Oike, Koji Amezawa, Takashi Nakamura, Yusuke Tamenori, Keiji Yashiro, Tatsuya Kawada

    Solid State Ionics   Vol. 262   page: 911 - 913   2014.9

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    In this study, in situ soft X-ray absorption spectroscopy (soft XAS) technique, which enables us to analyze electronic structures of oxides at elevated temperatures while controlling atmospheric conditions, was developed. The technique was applied to investigate the electronic structures of La0.6Sr0.4CoO3 (- delta). X-ray absorption spectra at the Co L-edges and the O K-edge were measured in the temperature range from room temperature to 873 K and the p(O-2) range from 10(-4) to 10(-2) bar. The developed in situ soft XAS technique is found to be effective for evaluating electronic structures of oxides under controlled temperature and p(O-2). (C) 2014 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.ssi.2014.01.005

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  62. Chemically-induced expansion of Zr(0.2)Ce(0.8)O2-delta Reviewed

    Sean R. Bishop, Takashi Nakamura, Koji Amezawa

    SOLID STATE IONICS   Vol. 261   page: 1 - 4   2014.8

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    High temperature X-ray diffraction measurements in controlled partial pressures of oxygen are used to study the thermal expansion and point defect induced expansion, known as chemical expansion, of Zr0.2Ce0.8O2 - delta powder. The coefficient of thermal expansion agrees with previous values for undoped ceria. The coefficient of chemical expansion, on the other hand, is significantly less than in ceria, in agreement with a previous study by this group on Zr0.2Ce0.8O2 - delta. Contrary to previous studies of chemical expansion in ceria, with increasing 6, the chemical expansion coefficient increased, approaching the value for undoped ceria for large 6. This behavior is discussed in terms of availability of Zr for defect association. (C) 2014 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.ssi.2014.03.026

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  63. The crystal structure, oxygen nonstoichiometry and chemical stability of Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) Reviewed

    Fang Wang, Takashi Nakamura, Keiji Yashiro, Junichiro Mizusaki, Koji Amezawa

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS   Vol. 16 ( 16 ) page: 7307 - 7314   2014

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ROYAL SOC CHEMISTRY  

    The oxygen nonstoichiometry and the crystal structure of Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) were investigated by using coulometric titration, high-temperature gravimetry and in situ HT-XRD. The chemical stability diagram of BSCF was established as a function of temperature between room temperature and 1373 K and oxygen partial pressure, p(O-2), between 1 and 1 x 10(-21) bar. The results showed that the cubic BSCF had poor chemical stability both under highly oxidative conditions at low temperatures and highly reductive conditions at high temperatures. The phase analysis of the decomposition products showed that the chemical instability of BSCF was mainly owing to the oxidation/reduction of trivalent Co ions.

    DOI: 10.1039/c3cp54810d

    Web of Science

  64. Analysis of structural phase transition of Nd2NiO4+δ by scanning thermal measurement under controlled oxygen partial pressure Invited Reviewed

    E. Niwa, T. Nakamura, J. Mizusaki, T. Hashimoto

      Vol. 523   page: 46 - 50   2011

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  65. Electrical Conductivity, Seebeck Coefficient, and Defect Structure of Oxygen Nonstoichiometric Nd2-xSrxNiO4+δ Invited Reviewed

    T. Nakamura, K. Yashiro, K. Sato, J. Mizusaki

    Materials Chemistry and Physics   Vol. 122   page: 250 - 258   2010

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    Authorship:Lead author, Corresponding author   Language:English  

  66. Thermally-induced and Chemically-induced Structural Change in Layered Perovskite-Type Oxides Nd2-xSrxNiO4+δ Invited Reviewed

    T. Nakamura, K. Yashiro, K. Sato, J. Mizusaki

    Solid State Ionics   Vol. 181   page: 402 - 411   2010

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  67. Structural Analysis on La2-xSrxNiO4+δ by High-Temperature X-ray Diffraction Invited Reviewed

    T. Nakamura, K. Yashiro, K. Sato, J. Mizusaki

    Solid State Ionics   Vol. 181   page: 292 - 299   2010

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  68. Oxygen nonstoichiometry and defect equilibrium in La2-xSrxNiO4+δ Invited Reviewed

    T. Nakamura, K. Yashiro, K. Sato, J. Mizusaki

    Solid State Ionics   Vol. 180   page: 368 - 376   2009

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  69. Defect chemical and statistical thermodynamic studies on oxygen nonstoichiometric Nd2-xSrxNiO4+δ (x = 0, 0.2, 0.4) Invited Reviewed

    T. Nakamura, K. Yashiro, K. Sato, J. Mizusaki

    Solid State Ionics   Vol. 180   page: 1406 - 1413   2009

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    Authorship:Lead author, Corresponding author   Language:English  

  70. Oxygen nonstoichiometry and chemical stability of Nd2-xSrxNiO4+δ Invited Reviewed

    T. Nakamura, K. Yashiro, K. Sato, J. Mizusaki

    Journal of Solid State Chemistry   Vol. 182   page: 1533 - 1537   2009

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  71. Thermodynamic quantities and defect equilibrium in La2-xSrxNiO4+δ Invited Reviewed

    T. Nakamura, K. Yashiro, K. Sato, J. Mizusaki

    Journal of Solid State Chemistry   Vol. 182   page: 1121 - 1128   2009

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    Authorship:Lead author, Corresponding author   Language:English  

  72. Electronic state of oxygen nonstoichiometric La2-xSrxNiO4+δ at high temperatures Invited Reviewed

    T. Nakamura, K. Yashiro, K. Sato, J. Mizusaki

    Physical Chemistry Chemical Physics   Vol. 11   page: 3055 - 3062   2009

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    Authorship:Lead author, Corresponding author   Language:English  

  73. Composite Cathode of Perovskite-Related Oxides, (La,Sr)CoO3-δ/(La,Sr)CoO4-δ, for Solid Oxide Fuel Cells Invited Reviewed

    K. Yashiro, T. Nakamura, M. Sase, F. Hermes, K. Sato, T. Kawada, J. Mizusaki

    Electrochemical and Solid-State Letters   Vol. 12   page: B135 - B137   2008

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  74. Determination of the Reaction Zone in Gadolinia-Doped Ceria Anode for Solid Oxide Fuel Cell Invited Reviewed

    T. Nakamura, K. Yashiro, A. Kaimai, T. Otake, K. Sato, T. Kawada, J. Mizusaki

    Journal of The Electrochemical Society   Vol. 155   page: B1244 - B1250   2008

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    Authorship:Lead author, Corresponding author   Language:English  

  75. Electrochemical Behaviors of Mixed Conducting Oxide Anodes for Solid Oxide Fuel Cell Invited Reviewed

    Journal of The Electrochemical Society   Vol. 155   page: B563 - B569   2008

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    Authorship:Lead author, Corresponding author   Language:English  

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Books 3

  1. Basic Concept of Electrolyte Protection for Stable Operation of All-Solid-State Batteries-From the Perspective of Solid State Ionics

    Koji Amezawa, Yuta Kimura, Takashi Nakamura( Role: Contributor ,  Chapter 15)

    2024.10 

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    Language:English

  2. 無機機能性材料開発に向けた電気化学的アニオンドープ技術の開発 Reviewed

    中村崇司( Role: Contributor ,  pp23-27)

    2024.7 

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    Total pages:74   Responsible for pages:23-27   Language:Japanese

  3. 放射光利用の手引き -農水産・医療、エネルギー、環境、材料開発分野などへの応用ー

    東北放射光施設推進会議推進室( Role: Contributor ,  固体酸化物形燃料電池の反応を知る)

    アグネ技術センター  2019.1 

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    Language:Japanese

MISC 58

  1. 全固体リチウムイオン電池電極材料の応力誘起材料特性変調の実験的評価 Reviewed

    木村勇太, 中村崇司, 雨澤浩史

    材料の科学と工学   Vol. 60 ( 6 ) page: 196 - 199   2023.12

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:一般社団法人 日本材料科学会  

  2. Development of Electrochemical Techniques for Defect Engineering on Advanced Energy Materials Invited Reviewed

    NAKAMURA Takashi

    HORIBA Readout   Vol. 57   page: 23 - 28   2023.5

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    Authorship:Lead author, Last author, Corresponding author   Language:English   Publishing type:Article, review, commentary, editorial, etc. (other)   Publisher:HORIBA  

  3. 正極活物質における格子酸素安定性の実験的評価

    中村 崇司, 雨澤 浩史

    セラミックス   Vol. 58 ( 2023_No.1 ) page: 17 - 20   2023.2

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    Authorship:Lead author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  4. 酸化物正極材料における酸素欠陥とその能動制御に向けた取り組み

    中村 崇司, 太田 健斗, Xueyan Hou, 木村 勇太, 雨澤 浩史

    電池技術 2022   Vol. 34   page: 23 - 29   2022.10

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:(公社)電気化学会 電池技術委員会  

  5. Data-Driven Optimization of Particle Parameters of Active Materials Based on High-Spatial-Resolution 3D Operando Observation of Reaction Distribution in Solid State Batteries

    木村勇太, HUANG Su, 中村崇司, 石黒志, 有吉欽吾, 竹内友成, 奥村豊旗, 関澤央輝, 新田清文, 宇留賀朋哉, 唯美津木, 唯美津木, 内本喜晴, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 48th   2022

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  6. 希土類-アルカリ土類金属フッ化物系非晶質材料の合成と電気伝導特性

    織田島和樹, 本橋宏大, 木村勇太, 中村崇司, 雨澤浩史

    東北大学多元物質科学研究所研究発表会講演予稿集   Vol. 22nd   2022

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  7. Experimental Evaluation of Oxygen Potential Distribution in SOFC Electrolyte by Using Operando Micro X-Ray Absorption Spectroscopy

    柳将陽, 木村勇太, 中村崇司, 影山将汰, 且井宏和, 新田清文, 関澤央輝, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 47th (CD-ROM)   2021

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  8. Development of fluoride ion conductors based on perovskite oxyfluorides

    眞田喬徳, 本橋宏大, 木村勇太, 中村崇司, 内本喜晴, 雨澤浩史

    電気化学秋季大会講演要旨集(CD-ROM)   Vol. 2021   2021

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  9. High-resolution Operando 3D Visualization of Reaction Distribution in Composite Cathodes for Solid State Batteries Using Imaging CT-XAFS

    木村勇太, SU Huang, 中村崇司, 石黒志, 関澤央輝, 新田清文, 宇留賀朋哉, 竹内友成, 奥村豊旗, 唯美津木, 唯美津木, 内本喜晴, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 47th (CD-ROM)   2021

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  10. Development of New Fluoride Ion Conductors Based on Perovskite-Related Oxyfluorides

    眞田喬徳, 本橋宏大, 木村勇太, 中村崇司, 内本喜晴, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 47th (CD-ROM)   2021

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  11. 放射光を利用した蓄電池反応の時間追跡~時空間分解XAFSによるオペランド計測~

    雨澤浩史, 中村崇司, 木村勇太

    放射光   Vol. 33 ( 4 ) page: 290 - 296   2020.7

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  12. Experimental Evaluation of Oxygen Potential Distribution in SOFC Electrolyte/Cathode Interface by Using Operando Micro X-Ray Absorption Spectroscopy

    柳将陽, 木村勇太, 中村崇司, 影山将汰, 新田清文, 関澤央輝, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 46th (CD-ROM)   2020

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  13. Evaluation of Reaction Mechanism on SOFC Cathodes by Using Patterned Thin Film Model Electrodes

    雨澤浩史, 今泉貴明, 水野敬太, 木村勇太, 中村崇司, 新田清文, 関澤央輝, 井口史匡, 湯上浩雄, 八代圭司, 川田達也

    固体イオニクス討論会講演要旨集   Vol. 46th (CD-ROM)   2020

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  14. Correlation between electrode reaction and chromium deposition in SOFC cathodes

    S. Kageyama, Y. Shindo, Y. Fujimaki, K. Mizuno, Y. Kimura, T. Nakamura, F. Iguchi, K. Yashiro, H. Yugami, T. Kawada, K. Amezawa

    ECS Transactions   Vol. 91 ( 1 ) page: 1231 - 1237   2019

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    © The Electrochemical Society. In this study, Cr-poisoning in a SOFC mixed conducting cathode was investigated. To examine the influence of the electrode reaction systematically, a model patterned thin film electrode was used. La0.6Sr0.4CoO3-δ was chosen as the model cathode material. The LSC model electrode was exposed to Cr-containing oxygen at 973 K under a cathodic polarization. The Cr content in the feed gas was controlled by setting the temperature of a Cr-source at 973 K or 773 K. The degradation of the electrode performance was observed under both conditions. Deposits observed on the electrode surface were SrCrO4 for the higher Cr-concentration in the feed gas. On the other hand, deposits were Sr-compounds without detectable amount of Cr for the lower Cr-concentration. These results may indicate that not only the Cr-deposition but also the decomposition of the electrode material could be considerable causes for the Cr-poisoning in mixed conducting cathodes depending on the Cr-concentration.

    DOI: 10.1149/09101.1231ecst

    Scopus

  15. オペランドCT-XAFSを用いた全固体リチウムイオン電池合剤電極の微細構造と不均一反応の相関解明

    木村勇太, 戸村愛菜, SU Huang, 中村崇司, 石黒志, 関澤央輝, 新田清文, 宇留賀朋哉, 奥村豊旗, 唯美津木, 唯美津木, 内本喜晴, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 45th   2019

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  16. オペランドCT-XAFSによる全固体リチウムイオン電池合剤電極内の不均一反応の可視化計測

    木村勇太, 戸村愛菜, 黄溯, 中村崇司, 石黒志, 関澤央輝, 新田清文, 宇留賀朋哉, 奥村豊旗, 唯美津木, 唯美津木, 内本喜晴, 雨澤浩史

    東北大学多元物質科学研究所研究発表会講演予稿集   Vol. 19th   2019

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  17. Investigation of the Cause of Reaction Distribution Formation in a Composite Electrode for Bulk-Type All-Solid-State Li-ion Batteries by Using Operando CT-XAFS and FIB-SEM

    戸村愛菜, HUANG S., 木村勇太, 中村崇司, 石黒志, 関澤央輝, 新田清文, 宇留賀朋哉, 奥村豊旗, 唯美津木, 唯美津木, 内本喜晴, 雨澤浩史

    電池討論会PDF要旨集(CD-ROM)   Vol. 60th   2019

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  18. La<sub>0.6</sub>Sr<sub>0.4</sub>CoO<sub>3-δ</sub>/Gd<sub>0.1</sub>Ce<sub>0.9</sub>O<sub>1.95</sub>積層パターン緻密膜電極を用いたSOFCコンポジット空気極の反応機構の解明

    今泉貴明, 水野敬太, 木村勇太, 中村崇司, 新田清文, 関澤央輝, 井口史匡, 湯上浩雄, 八代圭司, 川田達也, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 45th   2019

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  19. CT-XAFSを用いたバルク型全固体リチウムイオン電池合剤電極内の不均一反応のオペランド可視化計測

    戸村愛菜, 木村勇太, FAKKAO Mahunnop, 中村崇司, 石黒志, 関澤央輝, 新田清文, 宇留賀朋哉, 奥村豊旗, 唯美津木, 唯美津木, 内本喜晴, 雨澤浩史

    電気化学会大会講演要旨集(CD-ROM)   Vol. 86th   2019

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  20. メカニカルミリング法により作製されたLi添加NH<sub>4</sub>MgF<sub>3</sub>におけるイオン伝導特性

    本橋宏大, 松川陽介, 中村崇司, 木村勇太, 内本喜晴, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 45th   2019

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  21. 複合アニオン化合物YOFにおけるイオン伝導特性

    本橋宏大, 中村崇司, 木村勇太, 桑原彰秀, 内本喜晴, 雨澤浩史

    電気化学秋季大会講演要旨集(CD-ROM)   Vol. 2019   2019

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  22. 緻密膜パターン電極によるLa<sub>0.6</sub>Sr<sub>0.4</sub>CoO<sub>3-δ</sub>/Gd<sub>0.1</sub>Ce<sub>0.9</sub>O<sub>3-δ</sub>コンポジット空気極の反応機構の解明

    今泉貴明, 水野敬太, 中村崇司, 木村勇太, 新田清文, 関澤央輝, 井口史匡, 湯上浩雄, 八代圭司, 川田達也, 雨澤浩史

    電気化学会大会講演要旨集(CD-ROM)   Vol. 86th   2019

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  23. Ionic Conduction in Hybrid Organic-Inorganic Perovskite Compound NH<sub>4</sub>MgF<sub>3</sub>

    本橋宏大, 松川陽介, 中村崇司, 木村勇太, 高村仁, 内本喜晴, 雨澤浩史

    電池討論会PDF要旨集(CD-ROM)   Vol. 60th   2019

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  24. タイソナイト型La<sub>0.93</sub>Ba<sub>0.07</sub>F<sub>2.93</sub>の微細構造制御によるイオン伝導特性の向上

    本橋宏大, 木村勇太, 中村崇司, 内本喜晴, 雨澤浩史

    電気化学会大会講演要旨集(CD-ROM)   Vol. 85th   2018

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  25. オペランドCT-XAFSを用いたバルク型全固体リチウムイオン電池用合剤電極内反応分布の定量的解析

    木村勇太, 戸村愛菜, FAKKAO Mahunnop, 中村崇司, 石黒志, 関澤央輝, 新田清文, 宇留賀朋哉, 奥村豊旗, 唯美津木, 内本喜晴, 雨澤浩史

    電気化学秋季大会講演要旨集(CD-ROM)   Vol. 2018   2018

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  26. Analysis of the Reaction Distribution Formation in a Composite Electrode for Bulk-type All-solid-state Lithium-ion Batteries by Using Operando CT-XAFs

    木村勇太, 戸村愛菜, MAHUNNOP Fakkao, 中村崇司, 石黒志, 関澤央輝, 新田清文, 宇留賀朋哉, 奥村豊旗, 唯美津木, 唯美津木, 内本喜晴, 雨澤浩史

    電池討論会講演要旨集   Vol. 59th   2018

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  27. オペランドCT-XAFSによるバルク型全固体リチウムイオン電池の合剤電極内反応分布形成挙動の解析

    木村勇太, 戸村愛菜, MAHUNNOP Fakkao, 中村崇司, 石黒志, 関澤央輝, 新田清文, 宇留賀朋哉, 奥村豊旗, 唯美津木, 唯美津木, 内本喜晴, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 44th   2018

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  28. SOFC混合導電性空気極の電極反応に及ぼす水蒸気の影響

    水野敬太, 藤巻義信, 中村崇司, 木村勇太, 関澤央輝, 新田清文, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 44th   2018

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  29. CT-XAFSを用いたバルク型全固体リチウムイオン電池用合剤電極内の反応分布のオペランド評価

    木村勇太, MAHUNNOP Fakkao, 中村崇司, 石黒志, 関澤央輝, 新田清文, 宇留賀朋哉, 奥村豊旗, 唯美津木, 内本喜晴, 雨澤浩史

    電気化学会大会講演要旨集(CD-ROM)   Vol. 85th   2018

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  30. パターン緻密膜モデル電極を用いた混合導電性SOFC空気極における反応経路評価

    雨澤浩史, 水野敬太, 藤巻義信, 木村勇太, 中村崇司, 新田清文, 寺田靖子, 井口史匡, 八代圭司, 湯上浩雄, 川田達也

    電気化学秋季大会講演要旨集(CD-ROM)   Vol. 2017   2017

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  31. タイソナイト型(La,Ba)F<sub>3</sub>のイオン伝導特性に及ぼす微細構造の影響

    本橋宏大, 木村勇太, 中村崇司, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 43rd   2017

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  32. オペランドX線透過イメージング法・2次元X線吸収分光法によるLiイオン電池合材正極における反応分布形成要因の解明

    千葉一暉, 木村勇太, 中村崇司, 山重寿夫, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    電気化学秋季大会講演要旨集(CD-ROM)   Vol. 2017   2017

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  33. オペランド3次元イメージングXAFSを用いたバルク型全固体リチウムイオン電池用合材電極内の反応分布評価

    木村勇太, FAKKAO Mahunnop, 大崎静夏, 高野彬, 中村崇司, 伊奈稔哲, 石黒志, 関澤央輝, 宇留賀朋哉, 奥村豊旗, 唯美津木, 内本喜晴, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 43rd   2017

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  34. オペランド3次元CT-XAFSを用いた酸化物型全固体リチウムイオン電池合材電極内の反応分布評価

    木村勇太, FAKKAO Mahunnop, 大崎静夏, 高野彬, 中村崇司, 伊奈稔哲, 石黒志, 関澤央輝, 宇留賀朋哉, 奥村豊旗, 唯美津木, 内本喜晴, 雨澤浩史

    電気化学会東北支部セミコンファレンス講演論文集   Vol. 48th   2017

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  35. X線透過イメージング法を用いたLiイオン電池合材正極における電解液中の電解質濃度分布の直接評価

    千葉一暉, 木村勇太, 中村崇司, 山重寿夫, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    電気化学会大会講演要旨集(CD-ROM)   Vol. 84th   2017

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  36. Direct observation of electrolyte concentration distribution and reaction distribution in a composite positive electrode for Li-ion batteries by the parallel usage of X-ray imaging and X-ray absorption spectroscopy

    木村勇太, 千葉一暉, 中村崇司, 山重寿夫, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    電池討論会講演要旨集   Vol. 58th   2017

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  37. SOFC空気極反応に及ぼす三相界面反応の寄与

    藤巻義信, 水野敬太, 木村勇太, 中村崇司, 新田清文, 寺田靖子, 八代圭司, 川田達也, 井口史匡, 湯上浩雄, 雨澤浩史

    電気化学会大会講演要旨集(CD-ROM)   Vol. 84th   2017

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  38. SOFC空気極反応における三相界面反応の影響の評価

    水野敬太, 藤巻義信, 中村崇司, 木村勇太, 新田清文, 関澤央輝, 寺田靖子, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    電気化学会東北支部セミコンファレンス講演論文集   Vol. 48th   2017

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  39. SOFC混合導電性空気極の電極反応に対する三相界面反応の寄与

    水野敬太, 藤巻義信, 中村崇司, 木村勇太, 新田清文, 寺田靖子, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 43rd   2017

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  40. Liイオン電池合材正極中の反応分布形成に及ぼす電解液の電解質濃度変化の影響

    千葉一暉, 木村勇太, 中村崇司, 山重寿夫, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    東北大学多元物質科学研究所研究発表会講演予稿集   Vol. 17th   2017

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  41. 2次元X線吸収分光法を用いた全固体型Liイオン電池合材正極中の反応分布形成挙動の直接観察

    木村勇太, FAKKAO Mahunnop, 千葉一暉, 中村崇司, 奥村豊旗, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    電気化学会大会講演要旨集(CD-ROM)   Vol. 84th   2017

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  42. 二次元X線吸収分光法を用いた全固体リチウムイオン二次電池の電極内反応分布観察

    CHEN Kezheng, 作田敦, 山本健太郎, 新庄紗枝, 倉谷健太郎, 竹内友成, 林晃敏, 辰巳砂昌弘, 木村勇太, 中村崇司, 雨澤浩史, 内本喜晴

    固体イオニクス討論会講演要旨集   Vol. 43rd   2017

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  43. 微細構造制御によるタイソナイト型(La,Ba)F<sub>3</sub>のイオン伝導特性の向上

    本橋宏大, 木村勇太, 中村崇司, 雨澤浩史

    電気化学会東北支部セミコンファレンス講演論文集   Vol. 48th   2017

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  44. Operando2D-XAS測定を用いたLiイオン電池合材正極における反応分布形成要因の解明

    千葉一暉, 渡邊俊樹, 木村勇太, 中村崇司, 雨澤浩史, 谷田肇, 内本喜晴, 小久見善八

    電気化学会大会講演要旨集(CD-ROM)   Vol. 83rd   2016

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  45. オペランド二次元X線吸収分光法を用いた全固体硫化物型リチウム二次電池における反応分布解析

    新庄紗枝, 作田敦, 折笠有基, CHEN K., 森拓弥, 山本健太郎, 倉谷健太郎, 竹内友成, 林晃敏, 辰巳砂昌弘, 木村勇太, 中村崇司, 雨澤浩史, 内本喜晴

    電池討論会講演要旨集   Vol. 57th   2016

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  46. SOFC混合導電性空気極の電気化学的反応における三相界面反応の影響

    水野敬太, 藤巻義信, 木村勇太, 中村崇司, 新田清文, 寺田靖子, 井口史匡, 湯上浩雄, 八代圭司, 川田達也, 雨澤浩史

    固体イオニクス討論会講演要旨集   Vol. 42nd   2016

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  47. 多孔体電極を模擬した緻密膜パターン電極を用いたSOFC空気極反応の解析

    雨澤浩史, 藤巻義信, 進藤勇佑, 水野敬太, 木村勇太, 中村崇司, 新田清文, 寺田靖子, 井口史匡, 湯上浩雄, 八代圭司, 川田達也

    固体イオニクス討論会講演要旨集   Vol. 42nd   2016

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  48. 酸素過剰組成をとるLa<SUB>2-x</SUB>Sr<SUB>x</SUB>NiO<SUB>4+δ</SUB>についての欠陥化学的・熱力学的考察

    中村崇司, 八代圭司, 佐藤一永, 水崎純一郎

    熱測定会誌   Vol. 42 ( 2 ) page: 47 - 53   2015.2

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)  

    1378

  49. 2D-XASによるLiCoO<sub>2</sub>合材電極内の反応分布のOperando観察

    木村勇太, 千葉一暉, 渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 内本喜晴, 小久見善八

    電池討論会講演要旨集   Vol. 56th   2015

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  50. オペランド計測に基づく固体酸化物形燃料電池用電極の材料設計

    雨澤浩史, 藤巻義信, 中村崇司, 新田清文, 寺田靖子, 井口史匡, 湯上浩雄, 川田達也

    資源・素材(Web)   Vol. 2015   2015

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  51. LiCoO<sub>2</sub>合材電極内に生じる反応分布形成挙動の評価

    中村崇司, 渡邊俊樹, 雨澤浩史, 谷田肇, 尾原幸治, 小松秀行, 内本喜晴, 小久見善八

    電気化学会大会講演要旨集(CD-ROM)   Vol. 82nd   2015

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  52. 二次元X線吸収分光その場測定によるLiCoO<sub>2</sub>合材電極内の反応分布の評価

    木村勇太, 千葉一暉, 渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 内本喜晴, 小久見善八

    電気化学秋季大会講演要旨集(CD-ROM)   Vol. 2015   2015

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  53. LiCoO<sub>2</sub>合材電極内に生じる反応分布の電気化学的評価

    渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 尾原幸治, 内本喜晴, 小久見善八

    電気化学会大会講演要旨集   Vol. 81st   2014

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  54. LiCoO<sub>2</sub>合材電極内に生じる反応分布の評価

    渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 尾原幸治, 小松秀行, 内本喜晴, 小久見善八

    電池討論会講演要旨集   Vol. 55th   2014

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  55. La<sub>0.6</sub>Sr<sub>0.4</sub>CoO<sub>3-δ</sub>緻密膜パターン電極のマイクロXAS測定による有効反応場の定量的解明

    藤巻義信, 中村崇司, 八代圭司, 井口史匡, 湯上浩雄, 川田達也, 新田清文, 寺田靖子, 雨澤浩史

    電気化学会大会講演要旨集   Vol. 81st   2014

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  56. 2次元X線吸収分光測定によるリチウムイオン二次電池正極の反応分布の分析

    中村崇司, 渡邊俊樹, 雨澤浩史, 谷田肇, 尾原幸治, 内本喜晴, 小久見善八

    X線分析討論会講演要旨集   Vol. 50th   2014

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  57. X線吸収分光法によるLiCoO<sub>2</sub>合材電極における有効反応場の評価

    渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 尾原幸治, 内本喜晴, 小久見善八

    電気化学会大会講演要旨集   Vol. 80th   2013

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  58. X線吸収分光法を用いたLiCoO<sub>2</sub>合材電極内部の反応分布の評価

    渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 尾原幸治, 内本喜晴, 小久見善八

    固体イオニクス討論会講演要旨集   Vol. 39th   2013

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▼display all

Presentations 496

  1. Investigation of Oxygen Release from Cathode Active Materials for Lithium-Ion Batteries Based on Anion Defect Chemistry Invited International coauthorship International conference

    Takashi Nakamura, David Henseler, Juergen Janek, Xueyan Hou, Yuta Kimura, Koji Amezawa

    PRiME 2024  2024.10.8 

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    Event date: 2024.10

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:United States  

  2. Defect engineering for energy storage conversion materials Invited International conference

    Takashi Nakamura

    4th International Symposium on Design & Engineering by Joint Inverse Innovation for Materials Architecture  2024.10.3 

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    Event date: 2024.10

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  3. 欠陥の機能に着目したエネルギー材料の研究 Invited

    中村崇司

    第18回固体イオニクスセミナー  2024.9.4 

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    Event date: 2024.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  4. Anion Defect Engineering for Spinel-Type Cathode LiMn2O4 International coauthorship International conference

    Takashi Nakamura, Yuta Kimura, Koji Amezawa, Juergen Janek

    24th International Conference on Solid State Ionics  2024.7.16 

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    Event date: 2024.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:United Kingdom  

  5. 酸素発生触媒La2-xSrxNiO4+dの特性決定因子解明に向けた欠陥能動制御

    中村 崇司, 木幡 壮馬, 木村 勇太, 八木 俊介, 藤代 史, 大石 昌嗣, 高橋 伊久磨, 雨澤 浩史

    電気化学会第91回大会  2024.3.14  公益社団法人 電気化学会

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    Event date: 2024.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋大学 東山キャンパス   Country:Japan  

  6. 電気化学Fドープによるナノ結晶表面層の形成とその酸素発生触媒特性

    勝又 琢也, 木幡 壮馬, 山本 孟, 麻生 亮太郎, 木村 勇太, 雨澤 浩史, 中村 崇司

    電気化学会第91回大会  2024.3.14  公益社団法人 電気化学会

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    Event date: 2024.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋大学 東山キャンパス   Country:Japan  

  7. 全固体電池合剤電極内の活物質粒子群における充放電反応の3次元オペランド可視化追跡

    木村 勇太, 田中 舞, 黄 溯, 中村 崇司, 石黒 志, 竹内 友成, 奥村 豊旗, 関澤 央輝, 新田 清文, 宇留賀 朋哉, 唯 美津木, 内本 喜晴, 雨澤 浩史

    電気化学会第91回大会  2024.3.14  公益社団法人 電気化学会

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    Event date: 2024.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋大学 東山キャンパス   Country:Japan  

  8. 3D Operando Imaging of Reaction Distribution in Composite Solid State Battery Electrodes with Light-Element Active Materials International conference

    M.Tanaka, K.Nagae, S.Huang, Y.Kimura, T.Nakamura, N.Ishiguro, O.Sekizawa, K.Nitta, S.Yanagihara, S.Ohno, Y.Uchimoto, K.Amezawa

    18th Asian Conference on Solid State Ionics-2024(ACSSI-2024)  2024.2.19  ACSSI-2024

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    Event date: 2024.2

    Language:English   Presentation type:Poster presentation  

    Venue:Chennai, India   Country:India  

  9. Oxygen defect engineering for advanced battery materials Invited International conference

    T. Nakamura, X. Hou, Y. Kimura, K. Amezawa

    ICACC 2024(48th International Conference and Exposition on Advanced Ceramics and Composites)  2024.1.31 

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    Event date: 2024.1 - 2024.2

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Daytona Beach, Florida, U.S.   Country:United States  

  10. パターン緻密膜モデル電極によるPCFC空気極PrNi0.5Co0.5O3-δの反応機構の解明

    矢野 裕太郎, Diao Zhuo, 木村勇太, 中村崇司, 八代圭司, 川田達也, 雨澤 浩史

    第32回 SOFC研究発表会  2023.12.14  SOFC研究会

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    Event date: 2023.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Webハイブリッド方式, (対面会場:TKP東京駅カンファレンスセンター)   Country:Japan  

  11. 狩野 元弥, 吉岡 輝紀, Diao Zhuo, 木村 勇太, 中村 崇司, 八代 圭司, 川田 達也, 雨澤 浩史

    電解質の混合導電性を考慮したPCFC空気極のインピーダンス解析法の検討

    第32回 SOFC研究発表会  2023.12.14  SOFC研究会

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    Event date: 2023.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Webハイブリッド方式, (対面会場:TKP東京駅カンファレンスセンター)   Country:Japan  

  12. ペロブスカイト構造を持つフッ素リッチな新規酸フッ化物の開発

    本原匠, 木村勇太, 中村崇司, 雨澤浩史

    第23回東北大学多元物質科学研究所研究発表会  2023.12.7  東北大学多元物質科学研究所

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    Event date: 2023.12

    Language:Japanese   Presentation type:Poster presentation  

    Venue:宮城県仙台市   Country:Japan  

  13. PCFC空気極反応の交流インピーダンス応答に及ぼす電解質の混合導電性の影響

    雨澤 浩史, 狩野 元弥, Diao Zhuo, 木村 勇太, 中村 崇司, 川田 達也

    第49回 固体イオニクス討論会  2023.11.15  日本固体イオニクス学会・北海道大学

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    Event date: 2023.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:北海道札幌市(北海道大学工学部)   Country:Japan  

  14. Wagner理論に基づく安定性と低抵抗を両⽴した全固体電池電極/電解質コー ト層の設計指針の提案

    木村 勇太, 藤崎 貴也, 中村 崇司, 入山 恭寿, 雨澤 浩史

    第49回 固体イオニクス討論会  2023.11.15  日本固体イオニクス学会

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    Event date: 2023.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:北海道札幌市(北海道大学工学部)   Country:Japan  

  15. コンピュータ断層撮影法を⽤いた全固体電池合剤電極における反応分布のオ ペランド3次元観察

    田中 舞, 永, 栄謙登, 遡, 木村勇太, 中村崇司, 石黑志, 関澤央輝, 新田清文, 柳原祥, 馬, 大野真之, 内本喜晴, 雨澤浩史

    第49回 固体イオニクス討論会  2023.11.17  日本固体イオニクス学会

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    Event date: 2023.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:北海道札幌市(北海道大学工学部)   Country:Japan  

  16. 電気化学的FドープによるLiイオン電池正極材料の開発, 第49回 固体イオニクス討論会

    中村 崇司, 木村 勇太, 雨澤 浩史, Juergen Janek

    第49回 固体イオニクス討論会  2023.11.15  日本固体イオニクス学会

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    Event date: 2023.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:北海道札幌市(北海道大学工学部)   Country:Japan  

  17. 電解質の混合導電性がPCFC空気極のインピーダンス応答に及ぼす影響とそれを考慮した解析法の検討

    狩野元弥, 吉岡輝紀, Diao Zhuo, 木村勇太, 中村崇司, 川田達也, 雨澤浩史

    第36回東北若手の会  2023.11.13  (公社)電気化学会 東北支部

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    Event date: 2023.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:宮城県大崎市中山平温泉   Country:Japan  

  18. 欠陥化学に基づく電池材料の安定性評価と材料開発への展開 Invited

    中村 崇司, Xueyan Hou, 勝又 琢也, 木村 勇太, 雨澤 浩史

    第59回 熱測定討論会  2023.10.24  日本熱測定学会

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    Event date: 2023.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京都世田谷区(日本大学文理学部百周年記念館)   Country:Japan  

  19. Exploring Key Factors for Oxygen Evolution Reaction on La2-XSrxNiO4+Δ by Oxygen Defect Engineering International conference

    Soma Kobata, Yuta Kimura, Koji Amezawa, Masatsugu Oishi, Fumito Fujishiro, Ikuma Takahashi, Shunsuke Yagi, Takashi Nakamura

    244th ECS Meeting  2023.10.11  ECS

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    Event date: 2023.10

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Gothenburg, Sweden   Country:Sweden  

  20. Composite Effects on PCFC/EC Air Electrode Investigated by Using Patterned Thin Film Model Electrodes International conference

    Koji Amezawa, Zhu Diao, Katsuya Nishidate, Takaaki Imaizumi, Yuta Kimura, Takashi Nakamura, Keiji Yashiro, Tatsuya Kawada

    The 21st International Conference on Solid-State Protonic Conductors (SSPC-21)  2023.9.20 

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    Event date: 2023.9

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Fukuoka   Country:Japan  

  21. 電気化学Fドープ処理を施したLa0.5Sr0.5CoO3-δの酸素発生触媒特性

    勝又 琢也, 麻生 亮太郎, 山本 孟, 木村 勇太, 雨澤 浩史, 中村 崇司

    2023電気化学秋季大会  2023.9.11  公益社団法人 電気化学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス,福岡県福岡市   Country:Japan  

  22. Development of electrochenical anion defect control technique International conference

    T.Nakamura, T.Katsumata, Y.Kimura, H.Yamamoto, R.Aso, K.Amezawa

    Petite Ⅻ:An International Workshop on the Defect-Chemical Nature of Solids  2023.9.4 

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    Event date: 2023.9

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Schloss Edesheim, Germany   Country:Germany  

  23. Direct Observation of Chemical Potential Distribution in Solid State Ionics Devices by Using Operando XAFS International conference

    K.Amezawa, M.Yanagi, Y.Kimura, T.Nakamura, H.Katsui, K.Nitta, O.Sekizawa, T.Kawada

    Petite Ⅻ:An International Workshop on the Defect-Chemical Nature of Solids  2023.9.4 

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    Event date: 2023.9

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Schloss Edesheim, Germany   Country:Germany  

  24. Altered (Dis)charge Mechanism of Phase-separating Battery Electrodes in Solid State Batteries International conference

    Yuta KIMURA, Takaya FUJISAKI, Takashi NAKAMURA, Shintaro KOBAYASHI, Shogo KAWAGUCHI, Koji OHARA, Yasuhiro SUZUKI, Yasutoshi IRIYAMA, Koji AMEZAWA

    ICMAT 2023  2023.6.26  ICMAT

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    Event date: 2023.6

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Singapore   Country:Singapore  

  25. Defect Chemical and Thermodynamic Studies on Oxygen Release from Cathode Active Materials International conference

    Takashi NAKAMURA, Xuyan HOU, Yuta KIMURA, Kiyofumi NITTA, Yusuke TAMENORI

    ICMAT 2023  2023.6.26  ICMAT

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    Event date: 2023.6

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Singapore   Country:Singapore  

  26. From Electrochemical to Mechanical Modeling of SOFCs and Their Experimental Validation Invited International conference

    Tatsuya Kawada, Satoshi Watanabe, Riyan Achmad Budiman, Keiji Yashiro, Kazuhisa Sato, Toshiyuki Hashida, Yuta Kimura, Takashi Nakamura, Koji Amezawa, Masami Sato, Reika Nomura, Mayu Muramatsu, Kenjiro Terada

    243rd ECS Meeting  2023.5.30 

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    Event date: 2023.5 - 2023.6

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Boston, U.S.   Country:United States  

  27. Investigation on Reaction Mechanism in an SOFC Composite Cathode by Using Patterned Thin Film Electrodes International conference

    Zhuo Diao, Takaaki Imaizumi, Keita Mizuno, Yuta Kimura, Takashi Nakamura, Keiji Yashiro, Fumitada Iguchi, Tatsuya Kawada, Koji Amezawa

    243rd ECS Meeting  2023.5.31 

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    Event date: 2023.5 - 2023.6

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Boston, U.S.   Country:United States  

  28. マイクロX線吸収分光法によるSOFC電解質における酸素ポテンシャル分布のオペランド評価

    雨澤 浩史, 柳 将陽, 吉岡 輝紀, 木村 勇太, 中村 崇司, 且井 宏和, 関澤 央輝, 新田 清文

    電気化学会第90回大会  2023.3.29  (公社)電気化学会

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    Event date: 2023.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:宮城県仙台市(@東北工業大学)   Country:Japan  

  29. 複数元素の化学ポテンシャル同時制御による電気化学CO2変換

    西川 郁奈, 山本 亮平, 木村 勇太, 中村 崇司, 雨澤 浩史

    電気化学会第90回大会  2023.3.27  (公社)電気化学会

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    Event date: 2023.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:宮城県仙台市(@東北工業大学)   Country:Japan  

  30. 電気化学的アニオン複合化技術の開発

    勝又 琢也, 山本 孟, 麻生 亮太郎, 木村 勇太, 雨澤 浩史, 中村 崇司

    新学術領域「蓄電固体界面科学」第8回 領域会議プログラム  2023.3.18 

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    Event date: 2023.3

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京   Country:Japan  

  31. コンピュータ断層撮影法を基盤とした蓄電池合剤電極における反応分布の3次元オペランド観察手法の開発

    田中 舞, 木村 勇太, 中村 崇司, 雨澤 浩史

    新学術領域「蓄電固体界面科学」第8回 領域会議プログラム  2023.3.18 

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    Event date: 2023.3

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京都   Country:Japan  

  32. 3D Operando Imaging of Electrochemical Reaction in Composite Electrodes of Solid-State Battery International conference

    Yuta Kimura, Takashi Nakamura, Koji Amezawa

    apan-US Information Exchange Seminar on Fundamentals of Next Generation Batteries  2023.3.16 

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    Event date: 2023.3

    Language:English   Presentation type:Poster presentation  

    Venue:Tsukuba   Country:Japan  

  33. Defect chemical study on oxygen release from lithium-ion battery cathodes Invited International conference

    Takashi Nakamura

    JNU-Tohoku University Ionics Workshop  2023.3.10 

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    Event date: 2023.3

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Gwangju   Country:Korea, Republic of  

  34. リチウム化学ポテンシャル分布に基づく全固体電池の電極/電解質界面コート層の設計

    藤崎 貴也, 志水 哲也, 木村 勇太, 中村 崇司, 入山 恭寿, 雨澤 浩史

    「蓄電固体界面科学」第4回若手勉強会  2022.12.27 

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    Event date: 2022.12

    Language:Japanese   Presentation type:Poster presentation  

    Venue:大阪市   Country:Japan  

  35. 電気化学リアクターを活用した新規アニオン複合化技術の開発

    勝又琢也, 山本孟, 麻生亮太郎, 木村勇太, 雨澤浩史, 中村崇司

    新学術領域研究「蓄電固体界面科学」第4回若手勉強会  2022.12.27 

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    Event date: 2022.12

    Language:Japanese   Presentation type:Poster presentation  

    Venue:大阪市   Country:Japan  

  36. リチウムイオン電池正極におけるアニオン欠陥の評価・分析とその応用 Invited

    中村崇司

    化学電池材料研究会 第49回講演会  2022.12.19 

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    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京都(@東京理科大学)   Country:Japan  

  37. パターン緻密膜モデル電極を用いたPCFCコンポジット空気極の反応機構解明

    雨澤 浩史, Diao Zhuo, 西館 克弥, 吉岡 輝紀, 木村 勇太, 中村 崇司, 八代 圭司, 川田 達也

    第31回SOFC研究発表会  2022.12.15 

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    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  38. 希土類-アルカリ土類金属フッ化物系非晶質材料の合成と電気伝導特性

    織田島和樹, 本橋宏大, 木村勇太, 中村崇司, 雨澤浩史

    第22回東北大学多元物質科学研究所研究発表会  2022.12.8  多元物質科学研究所

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    Event date: 2022.12

    Language:Japanese   Presentation type:Poster presentation  

    Venue:宮城県仙台市   Country:Japan  

  39. 電気化学リアクターを用いた新規アニオン複合化技術の開発

    勝又 琢也, 山本 孟, 麻生 亮太郎, 木村 勇太, 雨澤 浩史, 中村 崇司

    第22回東北大学多元物質科学研究所研究発表会  2022.12.8  多元物質科学研究所

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    Event date: 2022.12

    Language:Japanese   Presentation type:Poster presentation  

    Venue:宮城県仙台市   Country:Japan  

  40. Determining Factors of Oxygen Vacancy Concentration Difference in Film and Bulk La0.6Sr0.4Co(1-y)Fey O3-δ Electrode

    Riyan Achmad Budiman, Daichi Oi, Nanaha Miyashita, Kathetrine-Develos Bagarinao, Yuta Kimura, Takashi Nakamura, Keiji Yashiro, Koji Amezawa, Tatsuya Kawada

    第48回 固体イオニクス討論会  2022.12.8  日本固体イオニクス学会

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    Event date: 2022.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:宮城県仙台市   Country:Japan  

  41. パターン緻密膜モデル電極を用いたプロトン伝導性セラミック燃料電池空気極材料の系統的評価

    吉岡 輝紀, 西舘 克弥, 木村 勇太, 中村 崇司, 八代 圭司, 川田 達也, 雨澤 浩史

    第48回 固体イオニクス討論会  2022.12.8  日本固体イオニクス学会

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    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:宮城県仙台市   Country:Japan  

  42. リチウム化学ポテンシャル分布に基づく全固体電池の電極/電解質界面コート層の設計

    藤崎 貴也, 志水 哲也, 木村 勇太, 中村 崇司, 入山 恭寿, 雨澤 浩史

    第48回 固体イオニクス討論会  2022.12.7  日本固体イオニクス学会

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    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:宮城県仙台市   Country:Japan  

  43. 全固体電池の高空間分解オペランド3次元反応分布計測に基づく活物質粒子パラメー タのデータ駆動最適化

    木村 勇太, 黄 溯, 中村 崇司, 石黒 志, 有吉 欽吾, 奥村 豊旗, 竹内 友成, 関澤 央 輝, 新田 清文, 宇留賀 朋哉, 唯 美津木, 内本 喜晴, 雨澤 浩史

    第48回 固体イオニクス討論会  2022.12.6  日本固体イオニクス学会

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    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:宮城県仙台市   Country:Japan  

  44. 欠陥制御による酸化物OER触媒の高性能化指針の確立

    木幡 壮真, 木村 勇太, 雨澤 浩史, 大石 昌嗣, 藤代 史, 高橋 伊久磨, 八木 俊介, 中村 崇司

    第48回 固体イオニクス討論会  2022.12.6  日本固体イオニクス学会

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    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:宮城県仙台市   Country:Japan  

  45. 複数元素の化学ポテンシャル同時制御による電気化学CO2変換

    西川 郁奈, 山本 亮平, 木村 勇太, 中村 崇司, 雨澤 浩史

    第48回 固体イオニクス討論会  2022.12.7  日本固体イオニクス学会

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    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:宮城県仙台市   Country:Japan  

  46. Mechanism of Cathodic Reaction in Proton-Conducting Ceramic Fuel Cells Investigated By Patterned Model Electrodes Invited International conference

    Koji Amezawa, Katsuya Nishidate, Zhuo Diao, Teruki Yoshioka, Yuta Kimura, Takashi Nakamura, Keiji Yashiro, Tatsuya Kawada

    242nd ECS Meeting  2022.10.11 

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    Event date: 2022.10

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Atlanta, U.S.   Country:United States  

  47. Electrical conduction properties of rare earth metal-alkaline earth metal fluoride glasses

    Kazuki Odajima, Kota Motohashi, Yuta Kimura, Takashi Nakamura, Koji Amezawa

    Joint Meeting of theTohoku Area Chemistry Societies  2022.9.18  Tohoku Area Chemistry Societies

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    Event date: 2022.9

    Language:English   Presentation type:Poster presentation  

    Venue:Iwate   Country:Japan  

  48. エネルギー材料におけるアニオン欠陥の機能解明とその応用 Invited

    中村崇司, Xue-Yan Hou, 勝又琢也, 木村勇太, 雨澤浩史

    (公社)日本セラミックス協会 第35回秋季シンポジウム  2022.9.15  (公社)日本セラミックス協会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:徳島県徳島市 徳島大学常三島キャンパス   Country:Japan  

  49. 3D Operando Analysis of Cycle Degradation in Solid-state Battery Electrodes Using CT-XAFS International conference

    Su Huang, Yuta Kimura, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Tomonari Takeuchi, Toyoki Okumura, Mizuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    17th Asian Conference on Solid State Ionics (ACSSI-2020)  2022.9.13  Asian Society for Solid State Ionics The Solid State Ionics Society of Japan

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    Event date: 2022.9

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Nagoya   Country:Japan  

  50. Elucidating the Discrepancy Factors between Oxygen Vacancy Concentration of LSCF Film and Bulk Electrode International conference

    Riyan Achmad Budiman, Daichi Oi, Keiji Yashiro, Yuta Kimura, Takashi Nakamura, Katherine Develos Bagarinao, Koji Amezawa, Tatsuya Kawada

    17th Asian Conference on Solid State Ionics (ACSSI-2020)  2022.9.13  Asian Society for Solid State Ionics The Solid State Ionics Society of Japan

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    Event date: 2022.9

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Nagoya   Country:Japan  

  51. Investigation of Composite Effects on PCFC Cathodes by Utilizing Patterned Thin Film Model Electrodes International conference

    Zhuo Diao, Katsuya Nishidate, Takaaki Imaizumi, Yuta Kimura, Takashi Nakamura, Keiji Yashiro, Tatsuya Kawada, Koji Amezawa

    17th Asian Conference on Solid State Ionics (ACSSI-2020)  2022.9.13  Asian Society for Solid State Ionics The Solid State Ionics Society of Japan

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    Event date: 2022.9

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Nagoya   Country:Japan  

  52. 全固体イオニクスデバイスの電解質における化学ポテンシャル分布

    吉岡 輝紀, 柳 将陽, 影山 将汰, 木村 勇太, 中村 崇司, 且井 宏和, 新田 清文, 関澤 央輝, 雨澤 浩史

    ECSJ 2022(2022年電気化学会秋季大会)  2022.9.8  (公社)電気化学会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:神奈川県横浜市 神奈川大学みなとみらいキャンパス   Country:Japan  

  53. 全固体化による二相共存系電極材料の充放電反応メカニズムの変化

    木村 勇太, 藤﨑 貴也, 中村 崇司, 小林 慎太郎, 河口 彰吾, 尾原 幸治, 鈴木 康広, 入山 恭寿, 雨澤 浩史

    ECSJ 2022(2022年電気化学会秋季大会)  2022.9.8  (公社)電気化学会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:神奈川県横浜市 神奈川大学みなとみらいキャンパス   Country:Japan  

  54. 欠陥制御を利用した(La,Sr)2NiO4+δのOER触媒特性決定因子の探索

    木幡 壮馬, 木村 勇太, 雨澤 浩史, 大石 昌嗣, 藤代 史, 高橋 伊久磨, 八木 俊介, 中村 崇司

    ECSJ 2022(2022年電気化学会秋季大会)  2022.9.8  (公社)電気化学会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:神奈川県横浜市 神奈川大学みなとみらいキャンパス   Country:Japan  

  55. 全固体電池における電極 / 電解質界面設計への一提言 〜固体イオニクスの観点から〜 Invited

    雨澤 浩史, 中村 崇司, 木村 勇太

    第412回電池技術委員会  2022.9.2  (公社)電気化学会 電池技術委員会

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:愛知県名古屋市   Country:Japan  

  56. 3D Operando High-Resolution Imaging of Inhomogeneous Electrochemical Reaction in Composite Solid-State Battery Electrodes International conference

    Yuta Kimura, Su Huang, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Tomonari Takeuchi, Toyoki Okumura, Mizuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    23rd International Conference on Solid State Ionics (SSI 23)  2022.7.18  SSI

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    Event date: 2022.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Boston, U.S.   Country:United States  

  57. Composite Effects on PCFC Cathodes Investigated by Utilizing Patterned Thin-Film Model Electrodes International conference

    Zhuo Diao, Katsuya Nishidate, Takaaki Imaizumi, Yuta Kimura, Takashi Nakamura, Keiji Yashiro, Tatsuya Kawada, Koji Amezawa

    23rd International Conference on Solid State Ionics (SSI 23)  2022.7.21  SSI

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    Event date: 2022.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Boston, U.S.   Country:United States  

  58. 3D Operando Visualization and Quantification of Cycle Degradation in Solid-State Battery Electrodes Using CT-XAFS International conference

    Su Huang, Yuta Kimura, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Tomonari Takeuchi, Toyoki Okumura, Mizuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    23rd International Conference on Solid State Ionics (SSI 23)  2022.7.18  SSI

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    Event date: 2022.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Boston, U.S.   Country:United States  

  59. Flexible Synthesis of Mixed-Anion Compounds by Electrochemical Reactors International conference

    Takuya Katsumata, Hajime Yamamoto, Ryotaro Aso, Yuta Kimura, Koji Amezawa, Takashi Nakamura

    23rd International Conference on Solid State Ionics (SSI 23)  2022.7.19  SSI

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    Event date: 2022.7

    Language:English   Presentation type:Poster presentation  

    Venue:Boston, U.S.   Country:United States  

  60. Investigation of Lattice Oxygen Stability of Lithium-Ion Battery Cathode Li(NiMn)O2 International conference

    Takashi Nakamura, Xueyan Hou, Yuta Kimura, Yusuke Tamenori, Kiyofumi Nitta, Hirona Yamagishi, Koji Amezawa

    23rd International Conference on Solid State Ionics (SSI 23)  2022.7.18  SSI

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    Event date: 2022.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Boston, U.S.   Country:United States  

  61. Material Screening for Protonic Ceramic Fuel Cell Cathode by Using Patterned Thin-Film Model Electrode International conference

    Teruki Yoshioka, Katsuya Nishidate, Yuta Kimura, Takashi Nakamura, Keiji Yashiro, Tatsuya Kawada, Koji Amezawa

    23rd International Conference on Solid State Ionics (SSI 23)  2022.7.21  SSI

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    Event date: 2022.7

    Language:English   Presentation type:Poster presentation  

    Venue:Boston, U.S.   Country:United States  

  62. Operando Observation of Chemical Potential Distribution in Solid-State Ionics Devices by Using X-Ray Absorption Spectroscopy International conference

    Koji Amezawa, Masaharu Yanagi, Yuta Kimura, Takashi Nakamura, Hirokazu Katsui, Kiyofumi Nitta, Oki Sekizawa, Tatsuya Kawada

    23rd International Conference on Solid State Ionics (SSI 23)  2022.7.19  SSI

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    Event date: 2022.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Boston, U.S.   Country:United States  

  63. Operando 3D High-resolution Observation of Reaction Distribution Formation in Composite Solid State Battery Electrodes Using Imaging Nano CT-XAFS

    黄 溯, 木村 勇太, 中村 崇司, 石黒 志, 関澤 央輝, 新田 清文, 宇留賀 朋哉, 竹内 友成, 奥村 豊旗, 唯 美津木, 内本 喜晴, 雨澤 浩史

    電気化学会第89回大会  2022.3.17 

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    Event date: 2022.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  64. リチウムイオン電池正極材料における応力印加によるLi化学ポテンシャル変調の定量的評価

    芳賀 義弥, 木村 勇太, 中村 崇司, 桑田 直明, 川田 達也, 河村 純一, 雨澤 浩史

    電気化学会第89回大会  2022.3.15 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  65. 電気化学リアクターを用いたペロブスカイト酸化物へのフッ素ドープ

    勝又 琢也, 山本 孟, 麻生 亮太郎, 木村 勇太, 雨澤 浩史, 中村 崇司

    電気化学会第89回大会  2022.3.15 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  66. Evaluation of Electrode Reaction Mechanism of Ba0.5La0.5CoO3-δ for Protonic Ceramic Fuel Cell Cathode by Using Patterned Thin Film Electrode

    T. Yoshioka, K. Nishidate, Y. Kimura, T. Nakamura, Y. Mikami, T. Kuroha, K. Yashiro, T. Kawada, K. Leonard, H. Matsumoto, K. Amezawa

    2021.10.3 

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    Event date: 2021.10

    Language:English   Presentation type:Poster presentation  

  67. 全固体電気化学デバイス構成材料における応力誘起の化学ポテンシャル変調の実験的評価 Invited

    木村 勇太, 舟山 啓太, マフノップ ファッカオ, 中村 崇司, 川田 達也, 桑田 直明, 河村 純一, 雨澤 浩史

    日本機械学会 M&M2021 材料力学カンファレンス  2021.9.16  (一社)日本機械学会

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン  

  68. Mechanisms Governing Reaction Distribution Formation in Solid State Batteries Studied by Using Operando CT-XAFS

    黄 溯, 木村 勇太, 中村 崇司, 関澤 央輝, 新田 清文, 石黒 志, 宇留賀 朋哉, 奥村 豊旗, 唯 美津木, 内本 喜晴, 雨澤 浩史

    電気化学会第88回大会  2021.3.22 

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    Event date: 2021.3

    Language:English   Presentation type:Oral presentation (general)  

  69. オペランドマイクロX線吸収分光法を用いたSOFC空気極近傍の電解質における酸素ポテンシャル二次元分布の実験的評価

    柳 将陽, 影山 将汰, 木村 勇太, 中村 崇司, 新田 清文, 関澤 央輝, 八代 圭司, 川田 達也, 雨澤 浩史

    電気化学会第88回大会  2021.3.22 

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    Event date: 2021.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  70. バリウムジルコネート系プロトン導電性酸化物における水和および酸化還元時の化学ひずみ

    佐藤 隆太, 八代 圭司, 川田 達也, 山内 孝祐, 見神 祐一, 黒羽 智宏, 木村 勇太, 中村 崇司, 雨澤 浩史

    電気化学会第88回大会  2021.3.22 

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    Event date: 2021.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  71. ペロブスカイト関連構造をもつ酸フッ化物を母体とした新規フッ化物イオン伝導体の開発

    眞田 喬徳, 本橋 宏大, 木村 勇太, 中村 崇司, 内本 喜晴, 雨澤 浩史

    電気化学会第88回大会  2021.3.22 

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    Event date: 2021.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  72. 酸化物イオンの整流性を利用した高温論理素子の実証

    中村 崇司, 本田 美李, 木村 勇太, 雨澤 浩史

    電気化学会第88回大会  2021.3.23 

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    Event date: 2021.3

    Language:Japanese   Presentation type:Oral presentation (general)  

  73. 酸化物正極材料における酸素欠乏とその能動制御に向けた取り組み Invited

    中村崇司

    電気化学会 電池技術委員会 第111回新電池構想部会  2021.1.25 

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    Event date: 2021.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  74. パターン緻密膜モデル電極を用いたSOFC空気極の反応機構の検討

    雨澤浩史, 西舘克弥, 木村勇太, 中村崇司, 見神祐一, 黒羽智宏, 八代圭司, 川田達也

    第29回SOFC研究発表会  2020.12.18 

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    Event date: 2020.12

    Language:Japanese   Presentation type:Oral presentation (general)  

  75. 信頼性向上のためのセル内不均⼀性評価手法の開発

    佐藤一永, 八代圭司, 井口史匡, 渡邊智, 坂本正, 橋田俊之, 木村勇太, 中村崇司, 雨澤浩史, 湯上浩雄, 村松眞由, 佐藤維美, 寺田賢二郎, 尾澤伸樹, 川田達也

    第29回SOFC研究発表会  2020.12.18 

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    Event date: 2020.12

    Language:Japanese   Presentation type:Oral presentation (general)  

  76. オペランドマイクロX線吸収分光法を用いたSOFC空気極近傍の電解質における酸素ポテンシャル分布の実験的評価

    柳将陽, 木村勇太, 影山将汰, 中村崇司, 新田清文, 関澤央輝, 雨澤浩史

    第46回固体イオニクス討論会  2020.12.8 

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    Event date: 2020.12

    Language:Japanese   Presentation type:Oral presentation (general)  

  77. パターン緻密膜モデル電極を用いたSOFC空気極の反応機構の検討

    雨澤浩史, 今泉貴明, 木村勇太, 中村崇司, 新田清文, 関澤央輝, 井口史匡, 湯上 浩雄, 八代圭司, 川田達也

    第46回固体イオニクス討論会  2020.12.8 

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    Event date: 2020.12

    Language:Japanese   Presentation type:Oral presentation (general)  

  78. リチウムイオン電池酸化物正極活物質における酸素脱離現象と電気化学特性への影響

    中村崇司, 太田健斗, Xueyan Hou, 木村勇太, 為則雄祐, 麻生亮太郎, 雨澤浩史

    第46回固体イオニクス討論会  2020.12.9 

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    Event date: 2020.12

    Language:Japanese   Presentation type:Oral presentation (general)  

  79. 応力が二相共存系正極材料のLi化学ポテンシャルに及ぼす影響の実験的評価

    木村勇太, 舟山啓太, 中村崇司, 桑田直明, 川田達也, 河村純一, 雨澤浩史

    第46回固体イオニクス討論会  2020.12.9 

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    Event date: 2020.12

    Language:Japanese   Presentation type:Oral presentation (general)  

  80. パターン緻密膜電極を用いた PCFC 空気極材料の性能評価

    吉岡輝紀, 西舘克弥, 木村勇太, 中村崇司, 八代圭司, 川田達也, 雨澤浩史

    第33回東北若手の会  2020.12.5 

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    Event date: 2020.12

    Language:Japanese   Presentation type:Poster presentation  

  81. Effect of Lattice Oxygen Loss in Li(Ni1/3Co1/3Mn1/3)O2-δ

    Hou Xueyan, Kento Ohta, Takashi Nakamura, Yuta Kimura, Yusuke Tamenori, Kazuki Tsuruta, Koji Amezawa

    第20回東北大学多元物質科学研究所研究発表会  2020.12.3 

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    Event date: 2020.12

    Language:English   Presentation type:Poster presentation  

  82. Li 過剰系正極材料 Li1.2Ni0.13Co0.13Mn0.54O2 の酸素欠陥エンジニアリング

    中村 崇司, 太田 建斗, Xueyan Hou, 為則 雄祐, 鶴田 一樹, 吉田 秀人, 麻生 亮太郎, 雨澤 浩史

    第61回電池討論会  2020.11.19 

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    Event date: 2020.11

    Language:Japanese   Presentation type:Oral presentation (general)  

  83. 軟X線深さ分解X線微細構造法を用いた電極/電解質界面のオペランド分析

    木村 勇太, Mahunnop Fakkao, 中村 崇司, 鶴田 一樹, 為則 雄祐, 山本 貴之, 入山 恭寿, 雨澤 浩史

    第61回電池討論会  2020.11.20 

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    Event date: 2020.11

    Language:Japanese   Presentation type:Oral presentation (general)  

  84. Elucidating the Influence of Inhomogeneous Reaction Distributionon Battery Performance of Solid-State Lithium-Ion Batteries UsingOperandoCT-XAFS

    S. Huang, A. Tomura, Y. Kimura, T. Nakamura, O. Sekizawa, K. Nitta, N. Ishiguro, T. Uruga, T. Okumura, M. Tada, Y. Uchimoto, K. Amezawa

    PRiME 2020  2020.10.4 

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    Event date: 2020.10

    Language:English   Presentation type:Oral presentation (general)  

  85. Ionic Conduction in NH4(Mg0.8Li0.2)F2.8Treated By Mechanical Milling

    K. Motohashi, Y. Kimura, T. Nakamura, Y. Uchimoto, K. Amezawa

    PRiME 2020  2020.10.4 

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    Event date: 2020.10

    Language:English   Presentation type:Oral presentation (general)  

  86. Mechanism of Oxygen Release in Layered Ncm Cathode Materials for Li-Ion Batteries

    X. Hou, T. Nakamura, K. Ohta, Y. Kimura, Y. Tamenori, K. Tsuruta, K. Amezawa

    PRiME 2020  2020.10.4 

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    Event date: 2020.10

    Language:English   Presentation type:Oral presentation (general)  

  87. Oxygen Defects in Oxide-Based Lithium Ion Battery Cathodes: Formation and Influences on Electrochemical Properties Invited

    T. Nakamura, K. Ohta, X. Hou, Y. Kimura, K. Tsuruta, Y. Tamenori, K. Amezawa

    PRiME 2020  2020.10.6 

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    Event date: 2020.10

    Language:English   Presentation type:Oral presentation (invited, special)  

  88. 蓄電固体界面の高度計測 Invited

    雨澤浩史, 中村崇司, 木村勇太

    第33回秋季シンポジウム  2020.9.3  公益社団法人 日本セラミックス協会

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    Event date: 2020.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    オンライン開催

  89. Elucidation of the origin of the inhomogenous reaction distribution in composite electrodes for bulk-type all-solid-state lithium-Ion batteries by using operando CT-XAFS

    黄 溯、戸村 愛菜、木村 勇太、中村 崇司、関澤 央輝、新田 清文、石黒 志、宇留賀 朋哉、奥村 豊旗、唯 美津木、内本 喜晴、雨澤 浩史

    電気化学会第87回大会  2020.3.17 

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    Event date: 2020.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋  

  90. Oxygen release behavior of Li(NixCoyMnz)O2 cathode materials

    侯 雪妍、太田 健斗、中村 崇司、木村 勇太、為則 雄祐、鶴田 一樹、雨澤 浩史

    電気化学会第87回大会  2020.3.17 

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    Event date: 2020.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  91. エネルギー変換・貯蔵材料の欠陥化学と電気化学機能に関する研究 Invited

    中村崇司

    電気化学会第87回大会  2020.3.17 

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    Event date: 2020.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  92. パターン緻密膜モデル電極によるPCFC空気極BaGd1-xLaxCo2O6-δにおける反応サイト評価

    西舘 克弥、木村 勇太、中村 崇司、八代 圭司、川田 達也、Strandbakke Ragnar、Szpunar Iga、見神 祐一、後藤 丈人、寺山 健、黒羽 智宏、辻 庸一郎、雨澤 浩史

    電気化学会第87回大会  2020.3.17 

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    Event date: 2020.3

    Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  93. メカニカルミリング処理がLi添加NH4MgF3のイオン伝導特性に及ぼす影響

    本橋 宏大、松川 陽介、中村 崇司、木村 勇太、ドライ アルンクマール、河村 純一、内本 喜晴、雨澤 浩史

    電気化学会第87回大会  2020.3.17 

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    Event date: 2020.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  94. リチウム過剰系正極に対するアニオン欠陥導入と電気化学特性

    中村 崇司、太田 健斗、木村 勇太、鶴田 一樹、為則 雄佑、雨澤 浩史

    電気化学会第87回大会  2020.3.17 

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    Event date: 2020.3

    Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  95. Operando Analysis of All-Solid-State Battery Cathodes Using X-Ray Absorption Spectroscopy Masurements Invited International conference

    Yuta Kimura;Takashi Nakamura;Koji Amezawa

    44th International conference and exposition on advanced ceramics and composites  2020.1.27 

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    Event date: 2020.1

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Florida   Country:United States  

  96. Soft X-ray Absorption Spectroscopic Studies on Hydrogenated Titanium Dioxide International conference

    Takashi Nakamura;Ryota Shimizu;Taro Hitosugi;Naoki Nagatsuka;Katsuyuki Fukutani

    1st International Symposium Hydorgenomics  2020.1.7 

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    Event date: 2020.1

    Language:English   Presentation type:Poster presentation  

    Venue:Sapporp   Country:Japan  

  97. 2次元X線吸収分光測定によるリチウムイオン二次電池正極の反応分布の分析

    中村崇司, 渡邊俊樹, 雨澤浩史, 谷田肇, 尾原幸治, 内本喜晴, 小久見善八

    第50回X線分析討論会  2014.10.30 

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    Venue:JAPAN 仙台市  

  98. 高温XRDによる層状ペロブスカイト型酸化物の構造評価

    中村崇司, 雨澤浩史

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  99. 高温・制御雰囲気下における軟エックス線吸収分光測定技術の開発

    雨澤浩史, 為則雄祐, 大池諒, 八代圭司, 中村崇司, 川田達也

    第38回固体イオニクス討論会  2012.12.3 

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    Venue:JAPAN 京都  

  100. 高温・雰囲気制御下での軟X線吸収分光測定技術の開発

    大池諒, 為則雄祐, 藤巻義信, 中村崇司, 八代圭司, 川田達也, 雨澤浩史

    固体化学の新しい指針を探る研究会第74回定例研究会「若手研究者による研究発表会」  2014.3.12 

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    Venue:JAPAN 東京  

  101. 高温・雰囲気制御化での軟X線発光・吸収分光法測定技術の開発

    大池諒, 中村崇司, 徳島高, 八代圭司, 川田達也, 雨澤浩史

    第10回固体イオニクスセミナー  2014.8.31 

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    Venue:JAPAN 秋田県仙北市  

  102. 高温制御雰囲気下でのin situ X線吸収分光測定

    雨澤浩史, 八代圭司, 中村崇司

    平成24年度 新エネルギー材料・デバイス プロジェクトグループ研究会  2012.10.30 

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    Venue:JAPAN 福岡  

  103. 高温制御雰囲気下におけるSOFC構成材料の機械的特性評価

    白井良和, 木村勇太, 遠藤靖大, 川田達也, 中村崇司, 八代圭司, 雨澤浩史, 水崎純一郎, 佐藤一永, 橋本真一

    第21回SOFC研究発表会  2012.12.17 

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    Venue:JAPAN 東京  

  104. 高温論理回路開発に向けた酸化物イオン伝導体ヘテロ界面におけるイオン整流現象の解明

    本田美李, 中村崇司, 木村勇太, 八代圭司, 雨澤浩史, 川田達也, ürgen Janek

    2019年電気化学秋季大会  2019.9.5 

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    Venue:甲府  

  105. 高温雰囲気制御下における軟X線分光法を利用した固体酸化物形燃料電池材料のその場分析

    大池諒, 中村崇司, 為則雄祐, 徳島高, 八代圭司, 川田達也, 雨澤浩史

    第50回X線分析討論会  2014.10.30 

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    Venue:JAPAN 仙台市  

  106. 高温雰囲気制御軟X線吸収分光測定によるLa<SUB>2</SUB>NiO<SUB>4+δ</SUB>緻密薄膜電極の電子状態評価

    大池諒, 雨澤浩史, 為則雄祐, 八代圭司, 中村崇司, 川田達也

    第9回固体イオニクスセミナー  2013.9.8 

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    Presentation type:Poster presentation  

    Venue:岐阜県下呂市  

  107. 高温雰囲気制御軟X線吸収分光測定によるランタンコバルト系酸化物の電子状態の評価

    大池諒, 雨澤浩史, 為則雄祐, 八代圭司, 中村崇司, 川田達也

    電気化学会創立80周年記念大会  2013.3.29 

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    Venue:仙台  

  108. (Ba,Sr)(Co,Fe)O<SUB>3-δ</SUB> 系材料の安定性と電気化学的性質に及ぼすNb添加の影響

    王芳, 八代圭司, 中村崇司, 水崎純一郎, 雨澤浩史

    電気化学会創立80周年記念大会  2013.3.29 

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    Venue:仙台  

  109. Depth-resolved soft x-ray absorption spectroscopic measurement of LiCoO<SUB>2</SUB> thin film electrode for all-solid-state lithium-ion batteries

    Mahunnop Fakkao, Takashi Nakamura, Yuta Kimura, Kazuki Tsuruta, Yusuke Tamenori, Koji Amezawa

    第20回XAFS討論会  2017.8.4 

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    Venue:JAPAN 姫路市  

  110. Deformation and Carbon Deposition of Ni-YSZ Cermet for Solid Oxide Fuel Cells International conference

    Takashi Nakamura, Nobuaki Omura, T. Kudo, K. Matsuoka, Koji Amezawa

    Twelfth Inernational Conference on Flow Dynamics  2015.10.27 

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    Venue:JAPAN Sendai  

  111. Defect Structures and Ionic Conductivity in YOF-Based Mixed Anion Compounds International conference

    Kota Motohashi, Takashi Nakamura, Yuta Kimura, Akihide Kuwabara, Yoshiharu Uchimoto, Koji Amezawa

    2nd World Conference on Solid Electrolytes for Advanced Applications: Garnets and Competitors  2019.9.23 

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    Venue:Shizuoka  

  112. Defect Structure in Mixed Ionic and Electronic Conductors La<SUB>2</SUB>(Ni0.9,M0.1)<SUB>4+d</SUB> (M=Fe, Co, Cu) International conference

    Takashi Nakamura, Koji Amezawa

    2014 MRS Spring Meeting & Exhibit  2014.4.21 

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    Venue:United States San Francisco  

  113. Defect Equilibrium and Thermodynamic Quantities in the Ruddlesden Popper Type Sr<SUB>3</SUB>Fe<SUB>2</SUB>O<SUB>7-δ</SUB>

    Yihan Ling, Fang Wang, Takashi Nakamura, Koji Amezawa

    第55回電池討論会  2014.11.19 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 京都  

  114. Defect chemistry and thermodynamic properties of proton dissolution into BaZr<SUB>1-x</SUB>Y<SUB>x</SUB>O<SUB>3-δ</SUB> International conference

    Genki Imai, Takashi Nakamura, Koji Amezawa

    Eighth French Research Organizations - Tohoku University Joint Workshop on Frontier Materials  2015.11.29 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN Sendai  

  115. Defect chemistry and thermodynamic properties of proton dissolution into BaZr<SUB>1-x</SUB>Y<SUB>x</SUB>O<SUB>3-δ</SUB> International conference

    Genki Imai, Takashi Nakamura, Koji Amezawa

    12th International Symposium on Advanced Fluid Information  2015.10.26 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN Sendai  

  116. CT-XAFSを用いたバルク型全固体リチウムイオン電池用合剤電極内の反応分布のオペランド評価

    木村勇太, Fakkao Mahunnop, 中村崇司, 石黒志, 関澤央輝, 新田清文, 宇留賀朋哉, 奥村豊旗, 唯美津木, 内本喜晴, 雨澤浩史

    電気化学会第85回大会  2018.3.9 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  117. CT-XAFSを用いたバルク型全固体リチウムイオン電池合剤電極内の不均一反応のオペランド可視化計測

    戸村 愛菜, 木村 勇太, Mahunnop Fakkao, 中村 崇司, 石黒 志, 関澤 央輝, 新田 清文, 宇留賀 朋哉, 奥村 豊旗, 唯 美津木, 内本 喜晴, 雨澤 浩史

    電気化学会第86回大会  2019.3.27 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都  

  118. Correlation Between the Electronic Structure and the Interstitial Oxygen Formation in Layered Perovskite Oxides International conference

    Takashi Nakamura, Yihan Ling, Ryo Oike, Yusuke Tamenori, Koji Amezawa

    20th International Conference on Solid State Ionics (SSI-20)  2015.6.14 

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    Presentation type:Oral presentation (general)  

    Venue:United States Keystone, Colorado  

  119. Correlation between Electrode Reaction and Chromium Deposition in SOFC Cathodes International conference

    Shota Kageyama, Yusuke Shindo, Yoshinobu Fujimaki, Keita Mizuno, Yuta Kimura, Takashi Nakamura, Fumitada Iiguchi, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada, Koji Amezawa

    SOFC-XV  2019.9.8 

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    Venue:Kyoto  

  120. Contribution of Triple/Double Phase Boundary Reactions in Mixed Conducting Oxide Cathodes in SOFCs and PCFCs

    Koji Amezawa, Keita Mizuno, Katsuya Nishidate, Yuta Kimura, Takashi Nakamura, Ragnar Strandbakke, Iga Szpunar, Yuichi Mikami, Tomohiro Kuroha, Keiji Yashiro, Fumitada Iguchi, Tatsuya Kawada

    17th International Symposium on Solid Oxide Fuel Cells (SOFC-XVII)  2021.7.18 

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  121. Contribution of Triple-Phase Boundary Reaction in Cathodic Reaction of Solid Oxide Fuel Cell International conference

    Yoshinobu Fujimaki, Keita Mizuno, Yuta Kimura, Takashi Nakamura, Katherine Develos-Bagarinao, Katsuhiko Yamaji, Keiji Yashiro, Tatsuya Kawada, Fumitada Iguchi, Hiroo Yugami, Koji Amezawa

    Fifteenth International Symposium on Solid Oxide Fuel Cells  2017.7.23 

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    Presentation type:Oral presentation (general)  

    Venue:United States Hollywood,Florida  

  122. Contribution of Triple Phase Boundary Reaction in a Mixed-Conducting SOFC Cathode International conference

    Koji Amezawa, Yoshinobu Fujimaki, Keita Mizuno, Yuta Kimura, Takashi Nakamura, Kiyofumi Nitta, Yasuko Terada, Fumitada Iguchi, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada

    231st ECS Meeting  2017.5.28 

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    Venue:United States New Orleans  

  123. Contribution of Electrochemical Reaction through Triple Phase Boundaries in a Mixded Ionic and Electronic Conducting SOFC Cathode International conference

    Keita Mizuno, Yoshinobu Fujimaki, Yuta Kimura, Takashi Nakamura, Kiyofumi Nitta, Yasuko Terada, Keiji Yashiro, Tatsuya Kawada, Fumitada Iguchi, Hiroo Yugami, Koji Amezawa

    21st International Conference on Solid State Ionics  2017.6.18 

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    Presentation type:Oral presentation (general)  

    Venue:Italy Padua  

  124. Computed tomography X-ray absorption spectroscopy of composite electrode for bulk-type all-solid-state lithium-ion batteries

    Mahunnop Fakkao, 高野彬, 木村勇太, 中村崇司, 奥村豊旗, 伊奈稔哲, 石黒志, 宇留賀朋哉, 唯美津木, 内本喜晴, 雨澤浩史

    電気化学会東北支部 第30回東北若手の会  2017.11.24 

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    Presentation type:Poster presentation  

    Venue:JAPAN 仙台市太白区秋保  

  125. Chemically-induced structural deformation of layered perovskite oxides International conference

    T. Nakamura, K. Amezawa

    IEEE Nano 2016  2016.8.23 

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    Venue:JAPAN Sendai  

  126. Chemical Stability of the Layered LaBaCo<SUB>2</SUB>O<SUB>5+δ</SUB> Double Perovskite Cathode International conference

    C. Bernuy-Lopez, T. Nakamura, K. Amezawa, T. Grande

    SSPC-18  2016.9.18 

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    Presentation type:Poster presentation  

    Venue:Norway Oslo  

  127. Chemical stability of BSCF-baced solid solution International conference

    Fang Wang, Keiji Yashiro, Takashi Nakamura, Junichiro Mizusaki, Koji Amezawa

    The 19th International Conference on Solid State Ionics  2013.6.2 

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    Venue:Kyoto  

  128. Chemical stability of Ba<SUB>0.5</SUB>Sr<SUB>0.5</SUB>Co<SUB>0.8</SUB>Fe<SUB>0.2</SUB>O<SUB>3-δ</SUB> (BSCF) International conference

    Wang Fang, Keiji Yashiro, Takashi Nakamura, Koji Amezawa, Junichiro Mizusaki

    The 3rd Symposium of the Research Center for Sustainable Science & Engineering  2012.12.17 

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    Venue:JAPAN Sendai  

  129. Chemical Stability and Elelctrochemical Performance of Ba<SUB>0.5</SUB>Sr<SUB>0.5</SUB>Co<SUB>0.8</SUB>Fe<SUB>0.2</SUB>O<SUB>3-δ</SUB>(BSCF)-Based Mixed Conductor Cathodes for IT-SOFC

    WANG Fang, NAKAMURA Takashi, YASHIRO Keiji, MIZUSAKI Junichiro, AMEZAWA Koji

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  130. Cathodic Reaction in SOFC and PCFC Investigated by Using Patterned Thin Film Model Electrode Invited International conference

    Koji Amezawa, Keita Mizuno, Yuki Shinomiya, Yoshinobu Fujimaki, Takashi Nakamura, Yuta Kimura, Kiyofumi Nitta, Oki Sekizawa, Keiji Yashiro, Fumitada Iguchi, Hiroo Yugami, Tatsuya Kawada

    Materials Science & Technology18  2018.10.14 

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    Venue:Ohio, U.S.  

  131. Cathodic Reaction in Intermediate Temperature Fuel Cells Investigated by Using Patterned Thin Film Model Electrodes Invited International conference

    Koji Amezawa, Keita Mizuno, Katsuya Nishidate, Takaaki Imaizumi, Yuki Shinomiya, Yita Kimura, Takashi Nakamura, Keiji Yashiro, Oki Sekizawa, Kiyofumi Nitta, Fumitada Iguchi, Hiroo Yugami, Tatsuya Kawada

    22nd International Conference on Solid State Ionics  2019.6.16 

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    Venue:PyeongChang, Korea  

  132. Carbon Deposition and Defromation of Ni-YSZ Cermet in Hydrocabon-Containing Gases International conference

    Nobuyuki Ohmura, Takashi Nakamura, K. Matsuoka, T. Kudo, Koji Amezawa

    ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV  2015.7.26 

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    Venue:U.K. Glasgow, Scotland  

  133. BaZr<SUB>1-x</SUB>Y<SUB>x</SUB>O<SUB>3-δ</SUB>のプロトン溶解における欠陥化学と熱力学特性

    今井玄行, 中村崇司, 雨澤浩史

    第41回固体イオニクス討論会  2015.11.25 

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    Venue:JAPAN 札幌市  

  134. BaZr<SUB>1-x</SUB>Y<SUB>x</SUB>O<SUB>3-δ</SUB> におけるプロトン溶解

    今井玄行, 中村崇司, 雨澤浩史

    電気化学会第82回大会  2015.3.15 

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    Venue:JAPAN 横浜市  

  135. BaZr<SUB>0.9</SUB>Y<SUB>0.1</SUB>O<SUB>3-δ</SUB>のプロトン溶解における欠陥化学と熱力学特性

    今井玄行, 中村崇司, 雨澤浩史

    第11回固体イオニクスセミナー  2015.8.30 

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    Venue:JAPAN 伊豆熱川温泉  

  136. Ba<SUB>0.5</SUB>Sr<SUB>0.5</SUB>Co<SUB>0.8</SUB>Fe<SUB>0.2</SUB>O<SUB>3-δ</SUB>基材料の化学的安定性に及ぼす Sb 添加の影響

    五十嵐孔基, 王芳, 中村崇司, 八代圭司, 雨澤浩史

    第55回電池討論会  2014.11.19 

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    Venue:JAPAN 京都  

  137. Abnormal Shrinkage upon Nickel Oxidation at Low Temperatures International conference

    Keiji Yashiro, Takashi Nakamura, Katsuhiko Yamaji, Shin-ichi Hashimoto, Koji Amezwa, Tatsuya Kawada

    ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV  2015.7.26 

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    Venue:U.K. Glasgow, Scotland  

  138. 2次元X線吸収分光法を用いた全固体型Liイオン電池合材正極中の反応分布形成挙動の直接観察

    木村勇太, ファカオ マハンノップ, 千葉一暉, 中村崇司, 奥村豊旗, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    電気化学会第84回大会  2017.3.25 

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    Venue:JAPAN 東京都八王子市(首都大学東京 南大沢キャンパス)  

  139. 2価カチオンを添加したⅢ族窒化物の電気伝導特性

    佐藤智美, 木村勇太, 中村崇司, 高村仁, 雨澤浩史

    固体化学の新しい指針を探る研究会 第81回定例研究会『若手研究者による研究発表会』  2017.3.3 

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    Presentation type:Poster presentation  

    Venue:JAPAN 東京都(日本大学 文理学部)  

  140. 2価カチオンを添加した3族窒化物の電気伝導特性

    佐藤智美, 木村勇太, 中村崇司, 桑原彰秀, 高村仁, 雨澤浩史

    第16回多元物質科学研究所研究発表会  2016.12.7 

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    Venue:JAPAN 仙台市 東北大学片平キャンパスさくらホール  

  141. 2価カチオンをドープしたⅢ族窒化物の電気伝導特性評価

    佐藤智美, 木村勇太, 中村崇司, 桑原彰秀, 高村仁, 雨澤浩史

    26th Annual Meeting of MRS-Japan 2016  2016.12.19 

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    Presentation type:Poster presentation  

    Venue:JAPAN 横浜  

  142. 2D-XASを用いたLiCoO<SUB>2</SUB>合材電極内の反応分布形成挙動の直接観察

    木村勇太, 千葉一暉, 渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 内本喜晴, 小久見善八

    第11回固体イオニクスセミナー  2015.8.30 

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    Venue:JAPAN 伊豆熱川温泉  

  143. 2D-XASによるLiCoO<SUB>2</SUB>合材電極内の反応分布のOperando観察

    木村勇太, 千葉一暉, 渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 内本喜晴, 小久見善八

    第56回電池討論会  2015.11.11 

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    Venue:JAPAN 名古屋市  

  144. 2D-XAS Operando測定を用いたLiイオン電池用合剤正極における反応分布の評価

    千葉一暉, 渡邊俊樹, 村勇太, 中村崇司, 雨澤浩史, 谷田肇, 内本喜晴, 小久見善八

    第46回セミコンファレンス(第28回東北若手の会)  2015.12.4 

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    Venue:JAPAN 花巻市  

  145. Desing of Proton Ceramics Fuel Cells Considering Mixed Conduction in Solid Electrolyte International conference

    T. Nakamura, S. Mizunuma, K. Yamaguchi, Y. Mikami, T. Kuroha, K. Amezawa

    SSPC-18  2016.9.18 

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    Venue:Norway Oslo  

  146. Evaluation of the electrode reaction mechanism in PCFCs catahode by using patterned thin film model electrodes International conference

    Katsuya Nishidate, Yuki Shinomiya, Keita Mizuno, Yuta Kimura, Takashi Nakamura, Keiji Yashiro, Tatsuya Kawada, Yuichi Mikami, Shigenori Onuma, Tomohiro Kuroha, Noboru Taniguchi, Yoichiro Tsuji, Koji Amezawa

    PACRIM13  2019.10.27 

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    Language:English   Presentation type:Poster presentation  

    Venue:Okinawa  

  147. Evaluation of the electrochemically active area in a porous cathode for solid oxide fuel cells International conference

    Tohoku Univ.& GREEN Joint Symposium (The 8th GREEN Symposium)  2014.6.2 

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    Venue:JAPAN Tsukuba-city Ibaraki  

  148. Evaluation of the Effective Reaction Zone in LiCoO<SUB>2</SUB> Composite Cathode by Two Dimensional International conference

    Yuta Kimura, Takashi Nakamura, Toshiki Watanabe, Koji Amezawa, Hajime Tanida, Koji Ohara, Hideyuki Komatsu, Yoshiharu Uchimoto, Zempachi Ogumi

    LiBD2015 "Lithium Battery Discussions" - Electrode Materials  2015.6.21 

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    Venue:France Arcachon  

  149. Evaluation of the effective reaction zone in a composite cathode for lithium ion batteries International conference

    Takashi Nakamura, Toshiki Watanabe, Koji Amezawa, Hajime Tanida, Koji Ohara, Yoshiharu Uchimoto, Zempachi Ogumi

    The 19th International Conference on Solid State Ionics  2013.6.2 

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    Venue:Kyoto  

  150. Evaluation of Reaction Mechanism of PCFC Composite Cathodes by Utilizing Patterned Thin Film Model Electrodes

    Zhuo Diao, Katsuya Nishidate, Takaaki Imaizumi, Yuta Kimura, Takashi Nakamura, Yuichi Mikami, Tomohiro Kuroha, Keiji Yashiro, Tatsuya Kawada, Koji Amezawa

    17th International Symposium on Solid Oxide Fuel Cells (SOFC-XVII)  2021.7.18 

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  151. Evaluation of reaction distribution in composite cathode lithium ion secondary batteries studied by using two-dimensional XAS International conference

    Kazuki Chiba, Yuta Kimura, Takashi Nakamura, Koji Amezawa, Hajime Tanida, Yoshiharu Uchimoto, Zempachi Ogumi

    12th International Symposium on Advanced Fluid Information  2015.10.26 

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    Venue:JAPAN Sendai  

  152. Evaluation of PCFC cathodic reaction by using patterned thin film model electrodes Invited

    K. Amezawa, K. Nishidate, D. Zhuo, T. Yoshioka, Y. Kimura, T. Nakamura, Y.Mikami, T. Kuroha, F. Iguchi, K. Yashiro, T. Kawada

    PACRIM14  2021.12.13 

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  153. Evaluation of Li chemical potential of mechanically stressed LiCoO<SUB>2</SUB> International conference

    Y. Kimura, M. Fakkao, K. Funayama, T. Nakamura, N. Kuwata, T. Kawada, J. Kawamura, K. Amezawa

    IEEE Nano 2016  2016.8.24 

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    Venue:JAPAN Sendai  

  154. Evaluation of Li Chemical Potential of Mechanically Stressed Li Ion Batteries Cathodes International conference

    Yuta Kimura, Keita Funayama, Takashi Nakamura, Naoaki Kuwata, Tatsuya Kawada, Junichi Kawamura, Koji Amezawa

    LiBD2015 "Lithium Battery Discussions" - Electrode Materials  2015.6.21 

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    Venue:France Arcachon  

  155. Evaluation of Ionic Conduction in Hybrid Organic-Inorganic Perovskite NH<SUB>4</SUB>MgF<SUB>3</SUB> Invited International conference

    Yosuke Matsukawa, Yuta Kimura, Takashi Nakamura, Yoshiharu Uchimoto, Koji Amezawa

    The 16th Asian Conference on Solid State Ionics, Shanghai  2018.8.5 

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  156. Evaluation of Electronic Structures of an La<SUB>2</SUB>NiO<SUB>4+δ</SUB> Dense Thin Film Electrode by In-Situ Soft X-Ray Absorption Spectroscopy in Controlled Temperature and Atmospheric Conditions International conference

    Ryo Oike, Yusuke Tamenori, Yoshinobu Fujimaki, Takashi Nakamura, Keiji Yashiro, Tatsuya Kawada, Koji Amezawa

    2014 MRS Spring Meeting & Exhibit  2014.4.21 

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    Venue:United States San Francisco  

  157. Evaluation of Chemo-Mechanical Coupling Effect in All-Solid-State Lithium-Ion Battery Cathodes International conference

    Y. Kimura, M. Fakkao, T. Nakamura, N. Kuwata, T. Kawada, J. Kawamura, K. Amezawa

    APCFS2016  2016.9.19 

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    Venue:JAPAN Toyama  

  158. Elucidation of Reaction Mechanism of PCFC Composite Cathodes by Utilizing Patterned Thin Film Model Electrodes

    Z. Diao, K. Nishidate, T. Imaizumi, Y. Kimura, T. Nakamura, K. Yashiro, T. Kawada, K. Amezawa

    第30回SOFC研究発表会  2021.12.17 

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  159. Electronic structures of SOFC oxide cathodes studied by in-situ soft X-ray absorption spectroscopy International conference

    Takashi Nakamura, Ryo Oike, Yusuke Tamenori, Keiji Yashiro, Tatsuya Kawada, Koji Amezawa

    Tohoku Univ.& GREEN Joint Symposium (The 8th GREEN Symposium)  2014.6.2 

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    Venue:JAPAN Tsukuba-city Ibaraki  

  160. Electronic structures of sofc oxide cathodes studied by in situ soft x-ray absroption spectroscopy International conference

    Koji Amezawa, Ryo Oike, Yusuke Tamenori, Keiji Yashiro, Takashi Nakamura, Tatsuya Kawada

    The 19th International Conference on Solid State Ionics  2013.6.2 

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    Presentation type:Poster presentation  

    Venue:Kyoto  

  161. Electronic Structures of LaCoO<SUB>3</SUB>-Based Oxides Studied by Soft X-Ray Absorption Spectroscopy under Controlled Temperatures and Oxygen Partial Pressures International conference

    R.Oike, K.Amezawa, Y.Tamenori, K.Yashiro, T.Nakamura, T.Kawada

    13th International Symposium on Solid Oxide Fuel Cells(SOFC-XIII)  2013.10.6 

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    Venue:Okinawa  

  162. Electronic Conduction Mechanism, Oxygen Nonstoichiometry and Defect Chemical Model of LaNi<SUB>x</SUB>Fe<SUB>1-x</SUB>O<SUB>3-δ</SUB>

    BudimanRiyanAchmad, 橋本真一, 中村崇司, 八代圭司, 雨澤浩史, 川田達也

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  163. Electromotive force of LiCoO<SUB>2</SUB> electrode under mechanical deformation for solid state lithium-ion battery

    Mahunnop Fakkao, Keita Funayama, Takashi Nakamura, Naoaki Kuwata, Junichi Kawamura, Tatsuya Kawada, Koji Amezawa

    第40回固体イオニクス討論会  2014.11.16 

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    Venue:JAPAN 東京  

  164. Electrode Engineering Based on Observation of Gas-Solid Interfaces International conference

    T. Kawada, K. Yashiro, S. Hashimoto, T. Nakamura, K. Amezawa, K. Yamaji, H. Kishimoto, K. Develos-Bagarinao, T. Horita, H. Muroyama, T. Matsui, J. Kubota, S. Miyoshi

    2016 Asian SOFC Symposium  2016.9.4 

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    Venue:JAPAN Tokyo  

  165. Electrochemical properties of Li ion batteries cathodes under mechanical stress

    K.Funayama, T.Nakamura, N.Kuwata, T.Kawada, J.Kawamura, K.Amezawa

    第68回マテリアルズ・テーラリング研究会  2014.7.24 

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    Venue:JAPAN 軽井沢  

  166. Electrochemical Oxygen Reduction Reaction on an Oxide Ion Conducter Investigated by In Situ X-ray Absorption Spectroscopy International conference

    Koji Amezawa, Yoshinobu Fujimaki, Ryo Oike, Yuki Orikasa, Toshiaki Ina, Takashi Nakamura, Keiji Yashiro, Yoshiharu Uchimoto, Tatsuya Kawada

    Materials Science & Technology 2013(MS&T'13)  2013.10.27 

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    Venue:Canada Quebec  

  167. Electrochemical active sites in PCFC cathodes investigated by using patterned thin film model electrodes International conference

    Koji Amezawa, Katsuya Nishidate, Yuki Shinomiya, Keita Mizuno, Yuta Kimura, Takashi Nakamura, Keiji Yashiro, Tatsuya Kawada, Yuichi Mikami, Shigenori Onuma, Tomohiro Kuroha, Noboru Taniguchi

    PACRIM13  2019.10.27 

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    Venue:Okinawa  

  168. Electrical conduction behavior of anion conductors International conference

    Shunsuke Mizunuma, Takashi Nakamura, Koji Amezawa

    12th International Symposium on Advanced Fluid Information  2015.10.26 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN Sendai  

  169. Ehnancement of oxygen reduction reaction at hetero-interface electrode International conference

    K.Yashiro, T.Nakamura, Y.Tamenori, J.Mizusaki, K.Kawada, K.Amezawa

    The 19th International Conference on Solid State Ionics  2013.6.2 

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    Presentation type:Oral presentation (general)  

    Venue:Kyoto  

  170. Efficiency of Proton Ceramics Fuel Cells Considering Mixed Conduction in Solid Electrolyte International conference

    K. Amezawa, T. Nakamura, S. Mizunuma, K. Yamauchi, Y. Mikami, T. Kuroha

    PRiME 2016  2016.10.2 

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    Presentation type:Oral presentation (general)  

    Venue:United States Honolulu  

  171. Effects of crystal orientation to electromotive force of LiCoO<SUB>2</SUB> under mechanical stress International conference

    Mahunnop Fakkao, Yuta Kimura, Takashi Nakamura, Naoaki Kuwata, Junichi Kawamura, Tatsuya Kawada, Koji Amezawa

    12th International Symposium on Advanced Fluid Information  2015.10.26 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN Sendai  

  172. Effective Reaction Area in Solid Oxygen Fuel Cell Cathodes International conference

    K.Amezawa, Y.Fujimaki, T.Nakamura, K.Nitta, Y.Terada, F.Iguchi, H.Yugami, K.Yashiro, T.Kawada

    11th International Conference on Flow Dynamics  2014.10.8 

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    Presentation type:Oral presentation (invited, special)  

    Venue:JAPAN Sendai  

  173. Effect of mechanical stress on electromotive force of LiCoO<SUB>2</SUB> electrode in all-solid-state battery

    ファカオマハンノップ, 舟山啓太, 中村崇司, 桑田直明, 河村純一, 川田達也, 雨澤浩史

    電気化学会第82回大会  2015.3.15 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 横浜市  

  174. Effect of Mechanical Stress on Electrochemical Properties of Li Ion Batteries Cathodes International conference

    K.Funayama, Y.Okamoto, A.Kuwabara, T.Nakamura, N.Kuwata, T.Kawada, J.Kawamura, K.Amezawa

    17th International Meeting on Lithium Batteries (IMLB 2014)  2014.6.10 

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    Presentation type:Oral presentation (general)  

    Venue:Italy Como  

  175. Effect of Mechanical Stress on Electrochemical Properties of Li Ion Batteries Cathodes

    アドバンスト・バッテリー技術研究会第148回定例研究会  2014.8.5 

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    Presentation type:Oral presentation (invited, special)  

    Venue:JAPAN 大阪  

  176. Effect of mechanical stress on chemical potential of lithium in cathode materials for all-solid-state lithium-ion batteries International conference

    Mahunnop Fakkao, Yuta Kimura, Takashi Nakamura, Naoki Kuwata, Junichi Kawamura, Tatsuya Kawada, Koji Amezawa

    2nd International Symposium on Frontiers in Materials Science  2015.11.19 

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    Venue:JAPAN Tokyo  

  177. Effect of cation ordering on the chemical stability and triple conductivity (h<SUP>+</SUP>, O<SUP>2-</SUP>, and H<SUP>+</SUP>) in layered double perobskite LnBaCo<SUB>2</SUB>O<SUB>5+δ</SUB> (Ln = La and Y) cathodes International conference

    Carlos Bernuy-Lopez, Laura Rioja-Monllor, Simon L. Jorgensen, Takashi Nakamura, Sandrine Ricote, Ryan O'Hayre, Koji Amezawa, Mari-Ann Einarsrud, Tor Grande

    21st International Conference on Solid State Ionics  2017.6.18 

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    Presentation type:Oral presentation (general)  

    Venue:Italy Padua  

  178. efect chemical studies on oxygen release of Li-rich cathode material Li<sub>1.2</sub>Mn<sub>0.6</sub>Ni<sub>0.2</sub>O<sub>2</sub> International conference

    Takashi Nakamura, Hongze Gao, Kento Ohta, Yuta Kimura, Yusuke Tamenori, Kiyofumi Nitta, Toshiaki Ina, Masatsugu Oishi, Koji Amezawa

    22nd International Conference on Solid State Ionics  2019.6.16 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:PyeongChang, Korea  

  179. Distribution of the electrochemically active zone in the cathode for solid oxide fuel cell evaluated by in-situ micro XAS technique International conference

    Y.Fujimaki, Y.Terada, T.Nakamura, S.Hashimoto, K.Yashiro, T.Kawada, K.Amezawa

    International Conference on Processing & Manufacturing of Advanced Materials  2013.12.2 

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    Venue:United States Las Vegas  

  180. Direct Evaluation of Oxygen Chemical Potential Gradient in a Porous SOFC Cathode by in-situ micro XAS International conference

    Y.Fujimaki, H.Watanabe, Y.Kimura, K.Amezawa, Y.Terada, K.Yashiro, T.Nakamura, S.Hashimoto, T.Kawada

    The 3rd Symposium of the Research Center for Sustainable Science & Engineering  2012.12.17 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN Sendai  

  181. Direct Evaluation of Oxygen Chemical Potential Distribution in an SOFC Cathode by In Situ X-Ray Absorption Spectroscopy International conference

    Y.Fujimaki, H.Watanabe, Y.Terada, T.Nakamura, K.Yashiro, S.Hashimoto, T.Kawada, K.Amezawa

    13th International Symposium on Solid Oxide Fuel Cells(SOFC-XIII)  2013.10.6 

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    Presentation type:Poster presentation  

    Venue:Okinawa  

  182. Direct Evaluation of Effective Reaction Area in SOFC Cathodes by in situ Micro XAS International conference

    Koji Amezawa, Yoshinobu Fujimaki, Takashi Nakamura, Yasuko Terada, Kiyofumi Nitta, Fumitada Iguchi, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada

    2014 MRS Spring Meeting & Exhibit  2014.4.21 

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    Presentation type:Oral presentation (general)  

    Venue:United States San Francisco  

  183. Direct Ealuation of Electrochemical Reactions in Solid Oxide Fuel Cells under Operation International conference

    K.Amezawa, Y.Fujimaki, T.Nakamura, K.Nitta, Y.Terada, F,Iguchi, H.Yugami, T.Kawada

    CIMTEC 2014 6th Forum on New Materials  2014.6.15 

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    Venue:Italy Montecatini Terme  

  184. Development of operando two-dimensional imaging of reaction distribution in all-solid-state lithium-ion batteries' cathode

    Mahunnop Fakkao, 千葉一暉, 木村勇太, 中村崇司, 奥村豊旗, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    第16回多元物質科学研究所研究発表会  2016.12.7 

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    Presentation type:Poster presentation  

    Venue:JAPAN 仙台市 東北大学片平キャンパスさくらホール  

  185. Determination of Effective Reaction Area in a Mixed-Conducting SOFC Cathode International conference

    Koji Amezawa, Yoshinobu Fujimaki, Takashi Nakamura, Katherine Develos-Bagarinao, Katsuhiko Yamaji, Kiyofumi Nitta, Yasuko Terada, Fumitada Iguchi, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada

    227th ECS Meeting  2015.5.24 

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    Venue:United States Chicago, Illinois  

  186. Evaluation of the electrode reaction mechanismin anLa<sub>0.6</sub>Sr<sub>0.4</sub>CoO<sub>3-δ</sub> PCFC cathode International conference

    Katsuya Nishidate, Yuki Shinomiya, Keita Mizuno, Yuta Kimura, Takashi Nakamura, Keiji Yashiro, Tatsuya Kawada, Yuichi Mikami, Shigenori Onuma, Tomohiro Kuroha, Noboru Taniguchi, Yoichiro Tsuji, Koji Amezawa

    22nd International Conference on Solid State Ionics  2019.6.16 

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    Language:English   Presentation type:Poster presentation  

    Venue:PyeongChang, Korea  

  187. Investigation on SOFC Cathodic Reaction by Using Pattenred Thin Film Model Electrode International conference

    K. Amezawa, Y. Fujimaki, Y. Shindo, T. Nakamura, K. Yashiro, F. Iguchi, H. Yugami, T. Kawada

    MS&T16  2016.10.23 

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    Venue:United States Salt lake city,UTAH  

  188. Investigation on Electrode Reaction in Mixed Conducting Cathodes through Determination of Electrochemically Active Region International conference

    Keita Mizuno, Yoshinobu Fujimaki, Takashi Nakamura, Yuta Kimura, Oki Sekizawa, Kiyofumi Nitta, Fumitada Iguchi, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada, Koji Amezawa

    5th SCI Workshop  2018.9.11 

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  189. Investigation on Carbon Deposition and Expansion in Ni-YSZ Cermet International conference

    Yuki Shinomiya, Nobuaki Ohmura, Takashi Nakamura, Koji Amezawa

    12th International Symposium on Advanced Fluid Information  2015.10.26 

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    Venue:JAPAN Sendai  

  190. Investigation of the Origin of Reaction Distribution Formation in Composite Positive Electrode for Bulk-type All-Solid-State Lithium-Ion Batteries by Using International conference

    Yuta Kimura, Mahunnop Fakkao, Aina Tomura, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Toyoki Okumura, Mitsuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    5th SCI Workshop  2018.9.11 

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  191. Investigation of the Mechanism of the Reaction Distribution Formation in a Composite Positive Electrode for Bulk-Type All-Solid-State Lithium-Ion Batteries by Using Operando CT-XAFS International conference

    Yuta Kimura, Mahunnop Fakkao, Aina Tomura, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Toyoki Okumura, Mitsuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    22nd International Conference on Solid State Ionics  2019.6.16 

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    Venue:PyeongChang, Korea  

  192. Investigation of Oxygen Loss Behavior of Li-rich Li-Mn-Ni-O Cathodes by Electrochemical Titraiton Method International conference

    Hongze Gao, Takashi Nakamura, Yuta Kimura, Koji Amezawa

    21st International Conference on Solid State Ionics  2017.6.18 

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    Venue:Italy Padua  

  193. Investigation of oxygen loss behavior in Li-rich Li-Mn-Ni-O cathode materials by using coulometric titration technique

    Hongze Gao, Takashi Nakamura, Yuta Kimura, Koji Amezawa

    固体化学の新しい指針を探る研究会 第81回定例研究会『若手研究者による研究発表会』  2017.3.3 

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    Presentation type:Poster presentation  

    Venue:JAPAN 東京都(日本大学 文理学部)  

  194. Investigation of oxygen loss behavior in Li-rich Li-Mn-Ni-O cathode materials by coulometric titration technique

    郜 洪澤, 中村崇司, 木村勇太, 雨澤浩史

    電気化学会第84回大会  2017.3.25 

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    Venue:JAPAN 東京都八王子市(首都大学東京 南大沢キャンパス)  

  195. Investigation of oxygen loss behavior in Li-rich Li-Mn-Ni-O cathode materials by coulometric titration technique

    郜洪澤, 中村崇司, 木村勇太, 大石昌嗣, 雨澤浩史

    第17回多元物質科学研究所研究発表会  2017.12.4 

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    Venue:JAPAN 仙台  

  196. Investigation of Mechanism of Reaction Distribution Formation in Composite Cathode for Li Ion Batteries By Using Operando 2D-XAS International conference

    K. Chiba, Y. Kimura, T. Watanabe, T. Nakamura, K. Amezawa, H. Tanida, Y. Uchimoto, Z. Ogumi

    PRiME 2016  2016.10.2 

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    Venue:United States Honolulu  

  197. Investigation of Electrode Reaction and Degradation by Using patterned Thin Film Model Electrode International conference

    Koji Amezawa, Yoshinobu Fujimaki, Keita Mizuno, Shota Kageyama, Yuki Shinomiya, Takashi Nakamura, Yuta Kimura, Kiyofumi Nitta, Oki Sekizawa, Yasuko Terada, Fumitada Iguchi, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada

    13th European SOFC & SOE Forum 2018  2018.7.3 

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  198. Investigation of Cr-Poisoning in SOFC Cathode By Using the Patterned Thin Film Electrode International conference

    Y. Shindo, Y. Fujimaki, T. Nakamura, K. Yashiro, F. Iguchi, H. Yugami, T. Kawada, K. Amezawa

    PRiME 2016  2016.10.2 

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    Venue:United States Honolulu  

  199. Investigation of cathodic reaction of proton-conducting ceramics fuel cells by using model pattern electrodes International conference

    Takashi NAKAMURA, Katsuya NISHIDATE, Yuta KIMURA, Keiji YASHIRO, Tatsuya KAWADA, Yuichi MIKAMI, Tomohiro KUROHA, Yoichiro TSUJI, Koji AMEZAWA

    Materials Research Meeting 2019  2019.12.13 

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    Venue:Yokohama  

  200. Investigatino of Oxygen Reduction Reaction on Mixed-Conducting Oxide Cathodes by Using Operando X-Ray Absorption Spectroscopy International conference

    Koji Amezawa, Yoshinobu Fujimaki, Keita Mizuno, Yuta Kimura, Takashi Nakamura, Kiyofumi Nitta, Yasuko Terada, Keiji Yashiro, Fumitada Iguchi, Hiroo Yugami, Tatsuya Kawada

    2017 MRS Fall Meeting  2017.11.26 

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    Venue:United States Boston  

  201. Intersittial oxygen formation in ruddlesden-popper type oxides International conference

    10th Petite workshop  2017.3.7 

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    Venue:Republic of Korea Seoul  

  202. Inhomogeneous reaction distribution in a LiCoO<SUB>2</SUB> composite electrode for lithium ion batteries Invited

    2018.9.15 

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  203. Influence of Polarization on SOFC Cathode Degradation Investigated by Using Patterned Thin Film Model Electrodes International conference

    Koji Amezawa, Yusuke Shindo, Yoshinobu Fujimaki, Yuta Kimura, Takashi Nakamura, Keiji Yashiro, Fumitada Iguchi, Hiroo Yugami, Tatsuya Kawada

    21st International Conference on Solid State Ionics  2017.6.18 

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    Venue:Italy Padua  

  204. Influence of oxygen deficiency on electrode properties of Li<sub>1.2</sub>Mn<sub>0.6</sub>Ni<sub>0.2</sub>O<sub>2</sub> International conference

    Takashi Nakamura, Kento Ohta, Hongze Gao, Yuta Kimura, Yusuke Tamenori, Kazuki Tsuruta, Kiyofumi Nitta, Toshiaki Ina, Koji Amezawa

    9th Lithium Battery Discussions  2019.9.15 

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    Venue:Arcachon, France  

  205. Influence of oxygen deficiency on electrochemical properties of Li-rich positive electrode material Li<sub>1.2</sub>Mn<sub>0.6</sub>Ni</sub>0.2</sub>O<sub>2</sub> International conference

    Kento Ohta, Takashi Nakamura, Yuta Kimura, Kazuki Tsuruta, Yusuke Tamenori, Koji Amezawa

    22nd International Conference on Solid State Ionics  2019.6.16 

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    Venue:PyeongChang, Korea  

  206. Influence of oxygen deficiency on electrochemical properties of Li-rich cathode materials for lithium ion batteries International conference

    Takashi Nakamura, Kento Ohta, Yuta kimura, Kazuki Tsuruta, Yusuke Tamenori, Koji Amezawa

    PETITE workshop XI  2019.10.19 

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    Venue:Sommarøy, Norway  

  207. Influence of microstructure on elecrode performance of bulk-tupe all-solid-state lithium-ion batteries

    Su Huang, Aina Tomura, Yuta Kimura, Takashi Nakamura, Oki Sekizawa, Kiyofumi Nitta, Nozomu Ishiguro, Toyoki Okumura, Tomoya Uruga, Mizuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    第32回東北若手の会  2019.12.15 

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  208. Influence of Mechanical Stress on Lithium Chemical Potential in Lithium Ion Battery Electrodes Invited

    Koji Amezawa, Keita Funayama, Yuta Kimura, Fakkao Mahunnop, Takashi Nakamura, Naoaki Kuwata, Junichi Kawamura, Tatsuya Kawada

    233rd ECS Meeting  2018.5.13 

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  209. Influence of Mechanical Stress on Lithium Chemical Potential in Lithium Ion Battery Electrodes International conference

    Koji Amezwa, Keita Funayama, Yuta Kimura, Fakkao Mahunnop, Takashi Nakamura, Naoki Kuwata, Junichi Kawamura, Tatsuya Kawada

    IUMRS-ICEM2016  2016.7.4 

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    Venue:Singapore Singapore  

  210. Influence of Mechanical Stress on Li Chemical Potential of Electrode Materials for All Solid State Lithium Ion Batteries International conference

    Y. Kimura, M. Fakkao, T. Nakamura, N. Kuwata, T. Kawada, J. Kawamura, K. Amezawa

    Solid State Electrochemistry Workshop 2016  2016.10.12 

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    Venue:JAPAN Tokyo  

  211. Influence of Mechanical Strain on Chemical Potential of Cathode Materials in Lithim ion Batteries International conference

    Koji Amezawa, Keita Funayama, Takashi Nakamura, Naoki Kuwata, Tatsuya Kawada, Junichi Kawamura

    Materials Science & Technology 2014(MS&T14)  2014.10.12 

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    Venue:United States Pittsburgh  

  212. Influence of Electrode Reaction on Cr-poisoning in SOFC MIEC Cathodes International conference

    Shota Kageyama, Yusuke Shindo, Yoshinobu Fujimaki, Keita Mizuno, Yuta Kimura, Takashi Nakamura, Fumitada Iguchi, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada, Koji Amezaw

    13th European SOFC & SOE Forum 2018  2018.7.3 

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  213. Influence of compressive and tensile stress on lithium chemical potenital of LiCoO<SUB>2</SUB> positive electreode for all-solid-state lithium-ion batteries International conference

    M. Fakkao, Y. Kimura, T. Nakamura, N. Kuwata, J. Kawamura, K. Amezawa, T. Kawada

    The 2016 Joint Academic Forum between Thai-Nichi institute of Technology and the Japan University & Company Research Group  2016.9.12 

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    Venue:Thailand Bangkok  

  214. Influence of cation nonstoichiometry to oxygen nonstoichiometry in mixed ionic and electronic conductive perovskite oxides International conference

    Yusuke Okamoto, Akihide Kuwabara, Takashi Nakamura, Tatsuya Kawada, Koji Amezawa

    12th International Symposium on Advanced Fluid Information  2015.10.26 

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    Venue:JAPAN Sendai  

  215. Influence of cation nonstoichiometry to oxygen nonstoichiometry in mixed ionic and electronic conducting perovskite oxides: an experimental and DFT calculation study International conference

    Yusuke Okamoto, Akihide Kuwabara, Takashi Nakamura, Tatsuya Kawada, Koji Amezawa

    Eighth French Research Organizations - Tohoku University Joint Workshop on Frontier Materials  2015.11.29 

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    Venue:JAPAN Sendai  

  216. Influence of Cation Nonstoichiometry to Oxygen Nonstoichiometry in Mixed Ionic and Electronic Conducting Perovskite Oxides International conference

    Yusuke Okamoto, Akihide Kuwabara, Takashi Nakamura, Tatsuya Kawada, Koji Amezawa

    20th International Conference on Solid State Ionics (SSI-20)  2015.6.14 

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    Venue:United States Keystone, Colorado  

  217. Influence of cation nonstoichiometry to oxygen nonstoichiometry in mixed ionic and electronic conducting perovskite oxides International conference

    Yusuke Okamoto, Akihide Kuwabara, Takashi Nakamura, Tatsuya Kawada, Koji Amezawa

    2nd International Symposium on Frontiers in Materials Science  2015.11.19 

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    Venue:JAPAN Tokyo  

  218. Influence of Cation Nonstoichiometry to Oxygen Nonstoichiometry in Mixded Ionic and Electronic Conducting Perovskite Oxides International conference

    Yusuke Okamoto, Akihide Kuwabara, Takashi Nakamura, Tatsuya Kawada, Koji Amezawa

    Materials Scince & Technology 2015  2015.10.4 

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    Venue:United States Ohio, Columbus  

  219. In situ X-Ray Absorption Spectroscopy for Analysis of SOFC Reactions and Materials International conference

    K.Amezawa, Y.Fujimaki, R.Oike, Y.Orikasa, T.Ina, Y.Terada, K.Nitta, Y.Tamenori, T.Uruga, T.Nakamura, K.Yashiro, T.Kawada, Y.Uchimoto

    International Symposium on Simulations and Measurements for Electrochemistry in SOFC2013(ISSM-SOFC2013)  2013.3.11 

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    Venue:Tokyo  

  220. In situ and operando evaluation of batteries, fuel cells, and related materials International conference

    Takashi Nakamura, Koji Amezawa

    7th french-japanese joint workshop on FRONTIER MATERIALS  2014.12.8 

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    Venue:France Nantes  

  221. In Situ Analysis of Solid State Ionics Devices International conference

    Koji Amezawa, TakashiNakamura

    Sixth French Research Organizations -Tohoku University Joint Workshop on Frontier Matrials(FRONTIER 2013)  2013.12.1 

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    Venue:Sendai  

  222. In Situ Analysis of Materials and Reactions in Solid Oxide Fuel Cells International conference

    Koji Amezawa, Takashi Nakamura, Keiji Yashiro, Tatsuya Kawada, Yuki Orikasa, Yoshiharu Uchimoto

    First International Symposium on Innovative Energy Research  2013.11.25 

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    Venue:Sendai  

  223. Impact of Triple Phase Boundary Reaction in SOFC Mixed Conducting Cathodes International conference

    Keita Mizuno, Yoshinobu Fujimaki, Takashi Nakamura, Yuta Kimura, Kiyofumi Nitta, Oki Sekizawa, Yasuko Terada, Fumitada Iguchi, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada, Koji Amezawa

    13th European SOFC & SOE Forum 2018  2018.7.3 

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  224. Experimental evaluation of reaction distribution in solid oxide fuel cell cathode International conference

    Koji Amezawa, Yoshinobu Fujimaki, Takashi Nakamura, Katherine Develos-Bagarinao, Katsuhiko Yamaji, Kiyofumi Nitta, Yasuko Terada, Fumitada Iguchi, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada

    Kyoto International Forum for Environment and Energy-8  2015.9.20 

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    Venue:Norway Trondheim  

  225. Experimental Evaluation of Electrochemical Properties of Mechanically Stressed Li Ion Batteries Cathodes International conference

    Yuta Kimura, Keita Funayama, Takashi Nakamura, Naoaki Kuwata, Tatsuya Kawada, Junichi Kawamura, Koji Amezawa

    International Conference on Advanced Technology in Experimental Mechanics 2015  2015.10.4 

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    Venue:JAPAN Toyohashi  

  226. Experimental evaluation of electrochemical active area in SOFC cathode by electrochemical impedance spectroscopy measurements of patterned electrode International conference

    Yusuke Shindo, Yoshinobu Fujimaki, Takashi Nakamura, Fumitada Iguchi, Hiroo Yugami, Keiji Yashiro, Tatsuya Kawada, Koji Amezawa

    12th International Symposium on Advanced Fluid Information  2015.10.26 

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    Venue:JAPAN Sendai  

  227. Evaluationof Factors Influencing Cr-Poisoning in SOFC Cathodes International conference

    Shota Kageyama, Yusuke Shindo, Yoshinobu Fujimaki, Keita Mizuno, Yuta Kimura, Takashi Nakamura, Fumitada Iiguchi, KeijiYashiro, Hiroo Yugami, Tatsuya Kawada, Koji Amezawa

    22nd International Conference on Solid State Ionics  2019.6.16 

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    Venue:PyeongChang, Korea  

  228. Evaluation of the Reaction Distribution in LiCoO<SUB>2</SUB> Composite Electrode Studied By In Situ X-ray Absorption Spectroscopy International conference

    T.Watanabe, T.Nakamura, K.Amezawa, K.Ohara, H.Tanida, Y.Uchimoto, Z.Ogumi

    17th International Meeting on Lithium Batteries (IMLB 2014)  2014.6.10 

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    Venue:Italy Como  

  229. Evaluation of the Electronic and Local Structure of Proton-Conducting Oxide (CaZr<SUB>1-x</SUB>, Mn<SUB>x</SUB>)O<SUB>3-δ</SUB>, to Elucidate a Novel Protonation Mechanism

    Masatsugu Oishi, Takuya Doi, Takashi Yamamoto, Takashi Nakamura, Koji Amezawa, Yuji Okuyama

    第43回固体イオニクス討論会  2017.12.5 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 山形県天童市  

  230. Investigation on the carbon deposition behavior of Ni-YSZ Cermet in various types of hydrocarbon gas International conference

    N.Ohmura, T.Nakamura, K.Matsuoka, T.Kudo, T.Kawada, K.Amezawa

    39th International Conference and Expo on Advanced Ceramics and Composites(ICACC'15)  2015.1.25 

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    Presentation type:Oral presentation (general)  

    Venue:United States Florida  

  231. Operando 2D-XAS測定を用いたLiイオン電池合材正極における反応分布形成要因の解明

    千葉一暉, 渡邊俊樹, 木村勇太, 中村崇司, 雨澤浩史, 谷田肇, 内本喜晴, 小久見善八

    電気化学会第83回大会  2016.3.29 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 吹田市  

  232. Opearando evaluation of reaction distribution in a composite electrode of Li-ion batteries by using two dimensional X-ray absorption spectroscopy International conference

    Y. Kimura, K. Chiba, T. Watanabe, T. Nakamura, K. Amezawa, H. Tanida, Y. Uchimoto, Z. Ogumi

    IMLB2016  2016.6.19 

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    Presentation type:Poster presentation  

    Venue:United States Chicago  

  233. Novel and Conventional Approaches for the Design of Solid State Ionic Devices International conference

    Takashi Nakamura, Keiji Yashiro, Koji Amezawa

    5th french-japanese joint workshop on FRONTIER MATERIALS  2012.12.2 

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    Presentation type:Oral presentation (general)  

    Venue:France Rennes  

  234. Mn添加ペロブスカイト型酸化物における新規プロトン溶解反応と電子・局所構造解析

    土井卓哉, 奥山勇治, 中村崇司, 山本孝, 雨澤浩史, 大石昌嗣

    第44回固体イオニクス討論会  2018.12.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都  

  235. Mn添加ペロブスカイト型酸化物A(Zr,Mn)O<sub>3-δ</sub>におけるAサイト原子がプロトン伝導特性に与える影響

    土井卓哉, 山本孝, 大石昌嗣, 奥山勇治, 中村崇司, 雨澤浩史

    第15回固体イオニクスセミナー  2019.9.1 

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    Language:Japanese   Presentation type:Poster presentation  

    Venue:大津  

  236. Microstructure and Ionic Conductivity of Tysonite-Type (La, Ba)F3 International conference

    Kota Motohashi, Yuta Kimura, Takashi Nakamura, Yoshiharu Uchimoto, Koji Amezawa

    2018 ECS and SMEQ  2018.9.30 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Cancun, Mexico  

  237. Mg添加GaNの中高温電気伝導特性と欠陥構造

    佐藤智美, 木村勇太, 中村崇司, 桑原彰秀, 雨澤浩史

    2017年電気化学秋季大会  2017.9.10 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 長崎  

  238. Mechanism of Reaction and Degradation of SOFC MIEC Cathodes Investigated by Using Patterned Thin Film Model Electrode

    Koji Amezawa, Yoshinobu Fujimaki, Yusuke Shindo, Keita Mizuno, Takashi Nakamura, Yuta Kimura, Kiyofumi Nitta, Yasuko Terada, Fumitada Iguchi, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada

    MS&T17 (Materials Science & Technology 17)  2017.10.8 

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    Presentation type:Oral presentation (invited, special)  

    Venue:United States Pittsburgh, Pennsylvania  

  239. Mechanism of PCFC Cathodic Reaction Investigated by Using Patterned Thin Film Model Electrode International conference

    Koji Amezawa, Katsuya Nishidate, Yuta Kimura, Takashi Nakamura, Ragnar Strandbakke, I. Szpunar, Oki Sekizawa, Kiyofumi Nitta, Keiji Yashiro, Tatsuya Kawada

    PETITE workshop XI  2019.10.19 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Sommarøy, Norway  

  240. Mechanism of oxygen release from Li-rich cathode material for lithium ion batteries International conference

    Takashi Nakmaura

    Nonstoichiometric Compounds VII  2019.3.10  ECI

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    Venue:Miyazaki  

  241. Mechanism of Chromium Poisoning in SOFC Cathode Investigated by Using Pattern Thin Fiom Model Electrode International conference

    Koji Amezawa, Yusuke Shindo, Yoshinobu Fujimaki, Takashi Nakamura, Yuta Kimura, Keiji Yashiro, Fumitada Iguchi, Hiroo Yugami, Tatsuya Kawada

    Fifteenth International Symposium on Solid Oxide Fuel Cells  2017.7.23 

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    Presentation type:Oral presentation (general)  

    Venue:United States Hollywood,Florida  

  242. Mechanism of Cathodic Reaction in SOFC and PCFC Investigated by Using Operando X-Ray Absorption Measurements International conference

    Koji Amezawa, Keita Mizuno, Yoshinobu Fujimaki, Katsuya Nishidate, Takashi Nakamura, Yuta Kimura, Oki Sekizawa, Kiyofumi Nitta, keiji Yashiro, Tatsuya Kawada

    World Hydrogen Technologies Convention 2019  2019.6.2 

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    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Tokyo  

  243. Materials Properties for the Simulation of Electro-Chemo-Mechanical Coupling Behavior of SOFC International conference

    Keiji Yashiro, Tatsuya Kawada, Satoshi Watanabe, Mayu Muramatsu, Tadashi Sakamoto, Shin-Ichi Hashimoto, Kenjiro Terada, Masami Sato, Toshiyuki Hashida, Kazuhisa Sato, Fumitada Iguchi, Hiroo Yugami, Koji Amezawa, Takashi Nakamura, Yuta Kimura, Atsushi Unemoto

    Fifteenth International Symposium on Solid Oxide Fuel Cells  2017.7.23 

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    Presentation type:Oral presentation (general)  

    Venue:United States Hollywood,Florida  

  244. Material-, cell evaluation and simulation to improve mechanical reliability of SOFCs International conference

    Keiji Yashiro, Mayu Muramatsu, Satoshi Watanabe, Tadashi Sakamoto, Kenjiro Terada, Masami Sato, Toshiyuki Hashida, Kazuhisa Sato, Fumitada Iguchi, Hiroo Yugami, Koji Amezawa, Takashi Nakamura, Yuta Kimura, Tatsuya Kawada

    13th European SOFC & SOE Forum 2018  2018.7.3 

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    Language:English   Presentation type:Poster presentation  

  245. Li過剰系正極材料の酸素不定比性とそれが材料特性に与える影響

    太田健斗, 中村崇司, 木村勇太, 鶴田一樹, 為則雄祐, 雨澤浩史

    第45回固体イオニクス討論会  2019.11.26 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡  

  246. Li過剰系正極材料 Li<sub>1.2</sub>Mn<sub>0.6</sub>Ni<sub>0.2</sub>O<sub>2</sub>の酸素脱離に伴う電気化学特性変化

    太田健斗, 郜洪澤, 中村崇司, 木村勇太, 為則雄祐, 鶴田一樹, 雨澤 浩史

    第44回固体イオニクス討論会  2018.12.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都  

  247. Li過剰系正極における酸素脱離挙動の解明

    中村崇司, Hongze Gao, 雨澤浩史

    第42回固体イオニクス討論会  2016.12.5 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 名古屋市  

  248. Li過剰正極材料における酸素脱離挙動の定量評価

    中村崇司, Hongze Gao, 木村勇太, 雨澤浩史

    第12回固体イオニクスセミナー  2016.9.27 

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    Venue:JAPAN 指宿市  

  249. Liイオン電池用正極活物質LiCoO<SUB>2</SUB>における酸素離脱挙動の評価

    中村崇司, 雨澤浩史

    第11回固体イオニクスセミナー  2015.8.30 

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    Venue:JAPAN 伊豆熱川温泉  

  250. Liイオン電池用正極材料におけるLi化学ポテンシャルと機械的応力の熱力学的関係(若手講演)

    木村勇太, 舟山啓太, Mahunnop Fakkao, 中村崇司, 桑田直明, 川田達也, 河村純一, 雨澤浩史

    第11回固体イオニクスセミナー  2015.8.30 

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    Venue:JAPAN 伊豆熱川温泉  

  251. Liイオン電池正極材料の機械的特性とChemo-mechanical coupling効果

    木村勇太, 大出喬也, Mahunnop Fakkao, 中村崇司, 桑原彰秀, 雨澤浩史

    第13回固体イオニクスセミナー  2017.9.12 

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    Venue:JAPAN 宮崎  

  252. Liイオン電池合材正極中の反応分布形成に及ぼす電解液の電解質濃度変化の影響

    千葉一暉, 木村勇太, 中村崇司, 山重寿夫, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    第13回固体イオニクスセミナー  2017.9.12 

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    Venue:JAPAN 宮崎  

  253. Liイオン電池合材正極中の反応分布形成に及ぼす電解液の電解質濃度変化の影響

    千葉一暉, 木村勇太, 中村崇司, 山重寿夫, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    第17回多元物質科学研究所研究発表会  2017.12.4 

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    Presentation type:Poster presentation  

    Venue:JAPAN 仙台  

  254. Liイオン二次電池正極活物質の電気化学特性に及ぼす機械的応力の影響

    舟山啓太, 岡本悠佑, 桑原彰秀, 中村崇司, 桑田直明, 川田達也, 河村純一, 雨澤浩史

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  255. Liイオン二次電池二相共存正極材料の電気化学特性に及ぼす機械的応力の影響

    舟山啓太, 中村崇司, 桑田直明, 川田達也, 河村純一, 雨澤浩史

    2014年電気化学会秋季大会  2014.9.27 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 札幌市  

  256. Lithium Chemical Potential in Lithium Ion Battery Electrodes under Mechanical Strain International conference

    Koji Amezawa, Keita Funayama, Yuta Kimura, Fakkao Mahunnop, Takashi Nakamura, Naoki Kuwata, Tatsuya Kawada, Junichi Kawamura

    Materials Scince & Technology 2015  2015.10.4 

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    Venue:United States Ohio  

  257. Lithium Chemical Potential Change in Lithium Ion Battery Cathodes Under Mechanical Strain International conference

    K. Amezawa, K. Funayama, Y. Kimura, F. Mahunnop, T. Nakamura, N. Kuwata, J. Kawamura, T. Kawada

    229th ECS  2016.5.29 

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    Venue:United States Sandiego  

  258. LiCoO<SUB>2</SUB>合材電極内に生じる反応分布の電気化学的評価

    渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 尾原幸治, 内本喜晴, 小久見善八

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  259. LiCoO<SUB>2</SUB>合材電極内に生じる反応分布の評価

    渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 尾原幸治, 小松秀行, 内本喜晴, 小久見善八

    第55回電池討論会  2014.11.19 

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    Venue:JAPAN 京都  

  260. LiCoO<SUB>2</SUB>合剤電極内に生じる反応分布形成挙動の評価

    中村崇司, 渡邊俊樹, 雨澤浩史, 谷田肇, 尾原幸治, 小松秀行, 内本喜晴, 小久見善八

    電気化学会第82回大会  2015.3.15 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 横浜市  

  261. Li イオン二次電池正極材料の電気化学特性に機械的応力が及ぼす影響

    舟山啓太, 中村崇司, 桑田直明, 川田達也, 河村純一, 雨澤浩史

    第55回電池討論会  2014.11.19 

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    Venue:JAPAN 京都  

  262. Lattice Oxygen Instability in High-Ni Cathode Materials

    侯 雪妍, 木村 勇太, 為則 雄祐, 新田 清文, 山岸 弘奈, 雨澤 浩史, 中村 崇司

    第62回電池討論会,  2021.12.1 

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  263. Lattice Oxygen Instability and Reduction Behavior in LiNixCoyMnzO2-δ

    Xueyan Hou, 木村勇太, 為則雄祐, 新田清文, 山岸弘奈, 雨澤浩史, 中村崇司

    SSIJ47  2021.12.9 

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  264. LaPO<SUB>4</SUB>における欠陥の熱平衡濃度と導電特性の相関

    松尾宙晃, 高橋勇人, 桑原彰秀, 雨澤浩史, 八代圭司, 中村崇司, 橋本真一, 川田達也

    第38回固体イオニクス討論会  2012.12.3 

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    Venue:JAPAN 京都  

  265. LaNi<SUB>1-x</SUB>M<SUB>x</SUB>O<SUB>3-δ</SUB>(M=Fe,Co)の酸素不定比性と欠陥構造

    Riyan Achmad Budiman, Yuya Uzu- maki, Shin-Ichi Hashimoto, Takashi Nakamura, Keiji Yashiro, Koji Amezawa, Tatsuya Kawada

    第40回固体イオニクス討論会  2014.11.16 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 東京  

  266. La<SUB>0.6</SUB>Sr<SUB>0.4</SUB>CoO<SUB>3-δ</SUB>緻密膜パターン電極を用いた電極反応場形成因子の定量的評価

    藤巻義信, 中村崇司, K.Develos-Bagarinao, 山地克彦, 八代圭司, 川田達也, 井口史匡, 湯上浩雄, 雨澤浩史

    2014年電気化学会秋季大会  2014.9.27 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 札幌市  

  267. La<SUB>0.6</SUB>Sr<SUB>0.4</SUB>CoO<SUB>3-δ</SUB>緻密膜パターン電極を用いた電極反応場の定量的解明

    藤巻義信, 中村崇司, K.Develos-Bagarinao, 山地克彦, 八代圭司, 川田達也, 井口史匡, 湯上浩雄, 雨澤浩史

    第40回固体イオニクス討論会  2014.11.16 

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    Venue:JAPAN 東京  

  268. La<sub>0.6</sub>Sr<sub>0.4</sub>CoO<sub>3-δ</sub>/Gd<sub>0.1</sub>Ce<sub>0.9</sub>O<sub>3-δ</sub>積層パターン緻密膜電極を用いたSOFCコンポジット空気極の反応機構の解明

    今泉貴明, 水野敬太, 木村勇太, 中村崇司, 新田清文, 関澤央輝, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第45回固体イオニクス討論会  2019.11.26 

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    Venue:福岡  

  269. La<SUB>0.6</SUB>Sr<SUB>0.4</SUB>CoO<SUB>3-δ</SUB> 緻密膜パターン電極を用いた酸素同位体交換による電極反応場の定量的評価

    藤巻義信, 中村崇司, バガリナオカテリン, デベロス, 山地克彦, 八代圭司, 川田 達也, 井口史匡, 湯上浩雄, 雨澤浩史

    電気化学会第82回大会  2015.3.15 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 横浜市  

  270. La<SUB>0.6</SUB>Sr<SUB>0.4</SUB>CoO<SUB>3-d</SUB>緻密膜パターン電極のマイクロXAS測定による有効反応場の定量的解明

    藤巻義信, 中村崇司, 八代圭司, 井口史匡, 湯上浩雄, 川田達也, 新田清文, 寺田靖子, 雨澤浩史

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  271. Ionic rectification at the hetero-junction of solid electrolytes International conference

    Takashi Nakamura, Koji Amezawa, Jurgen Janek

    The 2nd Symposium for World Leading Reserach Centers  2019.2.17 

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    Venue:Sendai, Miyagi  

  272. Ionic Diode for Ultra-High Temperature Logic Circuit International conference

    Takashi Nakamura, Koji Amezawa, Joachim Sann, Jurgen Janek

    2018 ECS and SMEQ  2018.9.30 

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    Venue:Cancun, Mexico  

  273. Ionic Conduction in Hybrid Organic-Inorganic Perovskite Compounds NH<sub>4</sub>MgF<sub>3</sub> and (NH<sub>4</sub>)<sub>2</sub>MgF<sub>4</sub> International conference

    Kota Motohashi, Yosuke Matsukawa, Takashi Nakamura, Yuta Kimura, Naoaki Kuwata, Arunkumar Dorai, Hitoshi Takamura, Junichi Kawamura, Yoshiharu Uchimoto, Koji Amezawa

    22nd International Conference on Solid State Ionics  2019.6.16 

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    Language:English   Presentation type:Poster presentation  

    Venue:PyeongChang, Korea  

  274. Operando 2D-XAS測定を用いたLiイオン電池用合剤正極における反応分布形成挙動の解明

    千葉一暉, 木村勇太, 渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 内本喜晴, 小久見善八

    電気化学会東北支部 第29回東北若手の会  2016.11.25 

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    Venue:JAPAN 青森市  

  275. Quantitave Evaluation of Electrochemically Active Area in an SOFC Cathode by Oxygen Isotopic Exchange Measurements of a model Patterned Electrode International conference

    Yoshinobu Fujimaki, Takashi Nakamura, Katherine Develos-Bagarinao, Katsuhiko Yamaji, Keiji Yashiro, Tatsuya Kawada, Fumitada Iguchi, Hiroo Yugami, Koji Amezawa

    ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV  2015.7.26 

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    Venue:U.K. Glasgow, Scotland  

  276. Quantitative Evaluation of the Relationship between Mechanical Stress and Li Chemical Potential in LiCoO<SUB>2</SUB> International conference

    Yuta Kimura, Keita Funayama, Mahunnop Fakkao, Takashi Nakamura, Naoaki Kuwata, Tatsuya Kawada, Junichi Kawamura, Koji Amezawa

    21st International Conference on Solid State Ionics  2017.6.18 

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    Venue:Italy Padua  

  277. Quantitative Evaluation of Reaction Distribution in SOFC Cathodes by Using Model Patterned Thin Film Electrode International conference

    Y. Fujimaki, Y. Shindo, T. Nakamura, K. Yashiro, T. Kawada, F. Iguchi, H. Yugami, K. Amezawa

    E-MRS 2016  2016.5.2 

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    Presentation type:Poster presentation  

    Venue:France Lille  

  278. Quantitative Evaluation of Reaction Area in Solid Oxide Fuel Cell Cathode by Using Model Patterned Thin Film Electrode International conference

    Y. Fujimaki, K. Mizuno, Y. Kimura, T. Nakamura, K. D. Bagarinao, K. Yamaji, F. Iguchi, K. Yashiro, T. Kawada, K. Amezawa

    The 3rd CWRU-Tohoku Joint Workshop  2016.8.9 

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    Presentation type:Poster presentation  

    Venue:JAPAN Sendai  

  279. Quantitative Evaluation of Effective Reaction Area in Solid Oxide Fuel Cell Cathodes International conference

    Koji Amezawa, Yoshinobu Fujimaki, Takashi Nakamura, Katherine D. Bagarinao, Katsuhiko Yamaji, Kiyofumi Nitta, Yasuko Terada, Keiji Yashiro, Fumitada Iguchi, Hiroo Yugami, Tatsuya Kawada

    20th International Conference on Solid State Ionics (SSI-20)  2015.6.14 

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    Venue:United States Keystone, Colorado  

  280. Quantitative Consideration of influence of mechanical stress on Li chemical potential of LiCoO<SUB>2</SUB> International conference

    Y. Kimura, K. Funayama, M. Fakkao, T. Nakamura, N. Kuwata, T. Kawada, J. Kawamura, K. Amezawa

    E-MRS 2016  2016.5.2 

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    Presentation type:Oral presentation (general)  

    Venue:France Lille  

  281. Quantitative Analysis of Electrochemically Active Area in SOFC Cathodes with Model Patterned Electrode International conference

    Y. Fuijmaki, T. Nakamura, K. Yashiro, T. Kawada, F. Iguchi, H. Yugami, K. Nitta, Y. Terada, K. Amezawa

    2016 Asian SOFC Symposium  2016.9.4 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN Tokyo  

  282. Qantitative investigation on SOFC cathodic reaction by using a patterned thin film electrode International conference

    K. Amezawa, Y. Fujimaki, T. Nakamura, Y. Kimura, K. Nitta, Y. Terada, K. Yashiro, F. Iguchi, H. Yugami, T. Kawada

    Solid State Electrochemistry Workshop 2016  2016.10.12 

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    Venue:JAPAN Tokyo  

  283. Proton Dissolution in BaZr<SUB>1-x</SUB>Y<SUB>x</SUB>O<SUB>3-δ</SUB> International conference

    Genki Imai, Takashi Nakamura, Koji Amezawa

    20th International Conference on Solid State Ionics (SSI-20)  2015.6.14 

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    Presentation type:Oral presentation (general)  

    Venue:United States Keystone, Colorado  

  284. POTENTIAL DISTRIBUTION IN SOLID STATE IONICS DEVICES INVESTIGATED BY OPERANDO X-RAY ABSORPTION SPECTROSCOPY Invited

    K. Amezawa, M. Yanagi, Y. Kimura, T. Nakamura, K. Nitta, O. Sekizawa, T. Kawada

    18th International Conference on Diffusion in Solids and Liquids (DSL2021)  2021.7.1 

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    Language:English   Presentation type:Oral presentation (invited, special)  

  285. PCFC空気極の反応機構解明と高性能化への設計指針提案

    雨澤浩史, 西館克弥, Diao Zhuo, 吉岡輝紀, 木村勇太, 中村崇司, 八代圭司, 川田 達也

    第30回SOFC研究発表会  2021.12.17 

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  286. Oxygen release from Li-rich cathode material for lithium ion batteries International conference

    Takashi Nakamura, Koji Amezawa

    International Conference on Energy, Resources, Environment and Sustainable Development  2019.5.31 

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    Venue:Xuzhou, China  

  287. Oxygen Release Behavior of Li(NixCoyMnz)O<sub>2</sub>

    候雪妍, 太田健斗, 中村崇司, 木村勇太, 為則雄祐, 鶴田一樹, 雨澤浩史

    第45回固体イオニクス討論会  2019.11.26 

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    Venue:福岡  

  288. Oxygen Release Behavior of Li(Ni<sub>1/3</sub>Co<sub>1/3</sub>Mn<sub>1/3</sub>)O<sub>2</sub>

    候雪妍, 太田健斗, 中村崇司, 木村勇太, 為則雄祐, 鶴田一樹, 雨澤浩史

    第19回多元物質科学研究所発表会  2019.12.12 

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    Venue:宮城県仙台市  

  289. Oxygen Release Behavior of Li(Ni,CoMn)O<sub>2</sub>

    候雪妍, 太田健斗, 中村崇司, 木村勇太, 鶴田一樹, 為則雄祐, 雨澤浩史

    2019年電気化学秋季大会  2019.9.5 

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    Venue:甲府  

  290. Oxygen reduction reaction at hetero-interface electrode of perovskite-related oxides International conference

    K.Yashiro, T.Nakamura, J.Mizusaki, T.Kawada, K.Amezawa

    International Symposium on Simulations and Measurements for Electrochemistry in SOFC2013(ISSM-SOFC2013)  2013.3.11 

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    Venue:Tokyo  

  291. Oxygen reduction Mechanism on LaNi<SUB>1-x</SUB>Fe<SUB>x</SUB>O<SUB>3-δ</SUB> Film Electrode International conference

    R.A.Budiman, S.Hashimoto, T.Nakamura, K.Yashiro, K.Amezawa, T.Kawada

    The 19th International Conference on Solid State Ionics  2013.6.2 

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    Venue:Kyoto  

  292. Oxygen Nonstoichiometry of Ce<SUB>0.6</SUB>La<SUB>0.4</SUB>O<SUB>2-δ</SUB> International conference

    H.Sato, S.Hashimoto, T.Nakamura, K.Yashiro, K.Amezawa, T.Kawada

    13th International Symposium on Solid Oxide Fuel Cells(SOFC-XIII)  2013.10.6 

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    Presentation type:Poster presentation  

    Venue:Okinawa  

  293. Oxygen Nonstoichiometry and Electrochemical Properties in a Thin Film of Nickel Substituted Lanthanum Cobaltite for SOFCs International conference

    Y.Uzumaki, S.Hashimoto, T.Nakamura, K.Yashiro, K.Amezawa, T.Kawada

    13th International Symposium on Solid Oxide Fuel Cells(SOFC-XIII)  2013.10.6 

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    Presentation type:Poster presentation  

    Venue:Okinawa  

  294. Oxygen Nonstoichiometry and Defect Equilibrium in the Ruddlesden– Popper Type Oxides La<SUB>x</SUB>Sr<SUB>3-x</SUB>Fe<SUB>2</SUB>O<SUB>7-δ</SUB> (x=0, 0.25 and 0.5) International conference

    Yihan Ling, Fang Wang, Yusuke Okamoto, Takashi Nakamura, Koji Amezawa

    20th International Conference on Solid State Ionics (SSI-20)  2015.6.14 

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    Presentation type:Oral presentation (general)  

    Venue:United States Keystone, Colorado  

  295. Oxygen Nonstoichiometry and Defect Equilibrium in the Ruddlesden-Popper Phases Sr<SUB>3</SUB>Fe<SUB>2</SUB>O<SUB>7-δ</SUB>

    LingYi Han, Wang Fang, Nakamura Takashi, Amezawa Koji

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  296. Oxygen Incorporation Barrier at the Surface of Mixded Conducting Cathode for SOFC International conference

    Tatsuya Kawada, Riyan Budiman, Hiroki Sato, Yoshinobu Fujimaki, Keiji Yashiro, Shin-ichi Hashimoto, Takashi Nakamura, Koji Amezawa, Katherine Develos-Bagarinal, Haruo Kishimoto, Katsuhiko Yamaji, Shogo Miyoshi, Jun Kubota, Hiroki Muroyama, Toshiaki Matsui

    Materials Scince & Technology 2015  2015.10.4 

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    Venue:United States Ohio, Columbus  

  297. Oxygen Exchange Kinetics of Doped Lanthanum Cobaltite System International conference

    Keiji Yashiro, Hiroki Sato, Mie Sasaki, Takashi Nakamura, Shinichi Hashimoto, Koji Amezawa, Tatsuya Kawada

    20th International Conference on Solid State Ionics (SSI-20)  2015.6.14 

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    Venue:United States Keystone, Colorado  

  298. Oxygen defects and rystal structure of layered perovskite oxides International conference

    Takashi Nakamura, Keiji Yashiro, Kazuhisa Sato, K.Amezawa, Junichiro Mizusaki

    International Symposium on Simulations and Measurements for Electrochemistry in SOFC2013(ISSM-SOFC2013)  2013.3.11 

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    Presentation type:Poster presentation  

    Venue:Tokyo  

  299. Oxygen Chemical Potential Distribution evaluated by In Situ Micro XAS in an SOFC Porous Cathode International conference

    Y. Fujimaki, H. Watanabe, Y. Terada, T. Nakamura, K. Yashiro, S. Hashimoto, T.Kawada, K. Amezawa

    SOLID STATE ELECTROCHEMISTRY WORKSHOP 2013  2013.7.22 

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    Presentation type:Oral presentation (general)  

    Venue:Germany Heidelberg  

  300. Operando X-ray Absorption Spectroscopic Measurements of LiCoO<SUB>2</SUB> Cathode on a Solid State Lithium Ion Conductor

    王芳, 舟山啓太, 中村崇司, 為則雄祐, 桑田直明, 河村純一, 雨澤浩史

    電気化学会第82回大会  2015.3.15 

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    Venue:JAPAN 横浜市  

  301. operando X-ray absorption spectroscopic analysis of reactions and the design of high rate capability cathode for all-solid-state lithium-ion batteries International conference

    Yoshiharu Uchimoto, Kentaro Yamamoto, Atsushi Sakuda, Yuki Orikasa, Akitoshi Hayashi, Yuta Kimura, Takashi Nakamura, Koji Amezawa, Masahiro Tatsumisago

    21st International Conference on Solid State Ionics  2017.6.18 

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    Venue:Italy Padua  

  302. Operando Visualization of reaction Distribution in a Composite Electrode for Bulk-Type All-Solid-State Lithium-Ion Batteries by Using Operando CT-XAFS International conference

    Aina Tomura, Yuta Kimura, Mahunnop Fakkao, Takashi Nakamura, Nozomu Ishiguro, Oki Sekizawa, Kiyofumi Nitta, Tomoya Uruga, Toyoki Okumura, Mitsuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    9th Lithium Battery Discussions  2019.9.15 

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    Language:English   Presentation type:Poster presentation  

    Venue:Arcachon, France  

  303. Operando two-dimensional X-ray absorption spectroscopic study on a composite electrode of all-solid-state lithium-ion batteries International conference

    Mahunnop Fakkao, Yuta Kimura, Takashi Nakamura, Toyoki Okumura, Kiyofumi Nitta, Yasuko Terada, Yoshiharu Uchimoto, Koji Amezawa

    The 6th Joint Conference on Renewable Energy and Nanotechnology  2017.10.12 

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    Venue:Thailand Bangkok  

  304. Operando soft-XAS measurements of LiCoO<SUB>2</SUB> thin-film electrode for all-solid-state lithium-ion batteries

    ファカオ マハンノップ, 王芳, 木村勇太, 中村崇司, 鶴田一樹, 為則雄祐, 桑田直明, 河村純一, 雨澤浩史

    電気化学会第84回大会  2017.3.25 

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    Venue:JAPAN 東京都八王子市(首都大学東京 南大沢キャンパス)  

  305. Operando soft X-ray absorption spectroscopic study on electrochemical oxygen reduction reaction on an La<SUB>2</SUB>NiO<SUB>4+δ</SUB> dense film electrode International conference

    T. Nakamura, R. Oike, Y. Kimura, Y. Tamenori, T. Kawada, K. Amezawa

    Solid State Electrochemistry Workshop 2016  2016.10.12 

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    Venue:JAPAN Tokyo  

  306. Operando Observation of Reaction Distribution in LiCoO<SUB>2</SUB> Composite Electrodes of Li-ion Batteries by Using Two-dimensional X-ray Absorption Spectroscopy International conference

    Y. Kimura, K. Chiba, T. Watanabe, T. Nakamura, K. Amezawa, H. Tanida, Y. Uchimoto, Z. Ogumi

    The 3rd CWRU-Tohoku Joint Workshop  2016.8.9 

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    Presentation type:Poster presentation  

    Venue:JAPAN Sendai  

  307. Operando Observation of Reaction Distribution in All-Solid-State Lithium Ion Battery Cathode by Using CT-XAFS International conference

    Koji Amezawa, Yuta Kimura, Mahunnop Fakkao, Aina Tomura, Takashi Nakamura, Toyoki Okumura, Oki Sekizawa, Kiyofumi Nitta, Nozomu Ishiguro, Mitsuki Tada, Yoshiharu Uchimoto

    2nd World Conference on Solid Electrolytes for Advanced Applications: Garnets and Competitors  2019.9.23 

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    Venue:Shizuoka  

  308. Operando Observation of Reaction Distribution in a Composite Positive Electrode for Bulk-type All-Solid-State Lithium-Ion Batteries by Using CT-XAFS Invited International conference

    Yuta Kimura, Mahunnop Fakkao, Takashi Nakamura, Oki Sekizawa, Kiyofumi Nitta, Nozomu Ishiguro, Tomoya Uruga, Toyoki Okumura, Mitsuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    IMLB2018  2018.6.17 

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  309. Operando Observation of Reaction Distribution in a Composite Positive Electrode for Bulk-type All-Solid-State Lithium-Ion Batteries by Using CT-XAFS Invited

    Yuta Kimura, Mahunnop Fakkao, Takashi Nakamura, Oki Sekizawa, Kiyofumi Nitta, Nozomu Ishiguro, Tomoya Uruga, Toyoki Okumura, Mitsuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    アドバンスト・バッテリー技術研究会 第173回定例研究会  2018.9.10 

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  310. Operando Observation of Reaction Distribution in a Composite Positive Electrode for All-Solid-State Lithium-Ion Batteries by Using CT-XAFS Invited International conference

    Yuta Kimura, Mahunnop Fakkao, Takashi Nakamura, Toyoki Okumura, Oki Sekizawa, Kiyofumi Nitta, Nozomu Ishiguro, Tomoya Uruga, Mitsuki Tada, Yoshiharu Uchimoto, Koji Amezawa

    The 16th Asian Conference on Solid State Ionics, Shanghai  2018.8.5 

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  311. Operando Observation and Analysis of Reaction Distribution in Composite Electrodes for All-Solid-State Lithium Ion Batteries International conference

    S. Shinjo, T. Mori, K. Yamamoto, Y. Orikasa, A. Sakuda, K. Kuratani, T. Takeuchi, Y. Kimura, T. Nakamura, K. Amezawa, Y. Uchimoto

    PRiME 2016  2016.10.2 

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    Venue:United States Honolulu  

  312. Operando micro X-ray absorption spectroscopy measurements for investigating reaction distribution in solid oxide fuel cell electrodes International conference

    Koji Amezawa, Yoshinobu Fujimaki, Yusuke Shindo, Takashi Nakamura, Tatsuya Kawada

    Eighth French Research Organizations - Tohoku University Joint Workshop on Frontier Materials  2015.11.29 

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    Venue:JAPAN Sendai  

  313. Operando Investigation on Electrochemical Reaction In a Mixed Conducting Solid Oxide Fuel Cell Cathode International conference

    Keita Mizuno, Yoshinobu Fujimaki, Takashi Nakamura, Yuta Kimura, Kiyofumi Nitta, Oki Sekizawa, Yasuko Terada, Fumitada Iguchi, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada, Koji Amezawa

    5th CWRU-TOHOKU Joint Workshop  2018.8.2 

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    Venue:Sendai  

  314. Operando analysis of the reaction distribution in a composite electrode for the bulk-type all-solid-state lithium-ion batteries by using two dimensional X-ray absorption spectroscopy

    M. Fakkao, K. Chiba, Y. Kimura, T. Nakamura, T. Okumura, K. Nitta, Y. Terada, Y. Uchimoto, K. Amezawa

    第57回電池討論会  2016.11.29 

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    Venue:JAPAN 千葉市  

  315. Operando Analysis of Solid Oxide Fuel Cells Using Synchrotron Radation International conference

    K. Amezawa, Y. Fujimaki, R. Oike, K. Mizuno, T. Nakamura, Y. Kimura, K. Nitta, Y. Terada, Y. Tamemori, K. Yashiro, T. Kawada

    13th International Conference on Flow Dynamics  2016.10.10 

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    Venue:JAPAN Sendai  

  316. Operando 3-dimensional inaging XAFS of composite electrode for all-solid-state lithium-ion batteries

    M. Fakkao, A. Takano, Y. Kimura, T. Nakamura, T. Okumura, T. Ina, N. Ishiguro, T. Uruga, M. Tada, Y. Uchimoto, K. Amezaw

    第58回電池討論会  2017.11.14 

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    Venue:JAPAN 福岡  

  317. Reaction Distribution in a LiCoO<SUB>2</SUB> Composite Cathode for Lithium Ion Batteries Evaluated by In-Situ XAfS Technique International conference

    Electrochemistry Workshop  2014.7.6 

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    Venue:United States Monterey  

  318. オペランド CT-XAFSを用いたバルク型全固体リチウ ムイオン電池用合剤電極内反応分布の定量的解析

    木村 勇太, 戸村 愛菜, Mahunnop Fakkao, 中村 崇司, 石黒 志, 関澤 央輝, 新田 清文, 宇留賀 朋哉, 奥村 豊旗, 唯 美津木, 内本 喜晴, 雨澤 浩史

    2018年電気化学秋季大会  2018.9.25 

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    Venue:石川県金沢市  

  319. オペランド CT-XAFSによるバルク型全固体リチウムイオン電池用合剤電極における反応分布形成要因の解明

    木村 勇太, 戸村 愛菜, Mahunnop Fakkao, 中村 崇司, 石黒 志, 関澤 央輝, 新田 清文, 宇留賀 朋哉, 奥村 豊旗, 唯 美津木, 内本 喜晴, 雨澤 浩史

    第59回電池討論会  2018.11.27 

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    Venue:大阪  

  320. オペランド CT-XAFSによるバルク型全固体リチウムイオン電池の合剤電極内反応分布形成 挙動の解析

    木村 勇太, 戸村 愛菜, Mahunnop Fakkao, 中村 崇司, 石黒 志, 関澤 央輝, 新田 清文, 宇留賀 朋哉, 奥村 豊旗, 唯 美津木, 内本 喜晴, 雨澤 浩史

    第44回固体イオニクス討論会  2018.12.5 

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    Venue:京都  

  321. エントロピー生成極小の定理に基づく固体電解質中の化学ポテンシャル分布の計算

    木村勇太, 中村崇司, 川田達也, 雨澤浩史

    電気化学会第86回大会  2019.3.27 

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    Venue:京都  

  322. エネルギー変換・貯蔵材料におけるアニオン欠陥生成とその機能 Invited

    中村崇司

    新化学技術推進協会エネルギー分科会  2021.4.23 

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  323. アクセプターを添加したGaNの欠陥構造と電気伝導特性評価

    佐藤智美, 木村勇太, 中村崇司, 桑原彰秀, 雨澤浩史

    第13回固体イオニクスセミナー  2017.9.12 

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    Venue:JAPAN 宮崎  

  324. その場軟X線吸収・発光分光法によるLaCoO<SUB>3</SUB>系酸化物の評価

    大池諒, 中村崇司, 徳島高, 八代圭司, 川田達也, 雨澤浩史

    第40回固体イオニクス討論会  2014.11.16 

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    Venue:JAPAN 東京  

  325. その場軟X線吸収分光測定によるランタンニッケル酸化物緻密膜電極の電子状態の評価

    大池諒, 為則雄祐, 藤巻義信, 中村崇司, 八代圭司, 川田達也, 雨澤浩史

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  326. その場軟X線吸収・発光分光同時測定によるランタンコバルト系酸化物緻密膜電極の電子状態の評価

    岡本悠佑, 大池諒, 中村崇司, 為則雄祐, 徳島高, 八代圭司, 川田達也, 雨澤浩史

    2015年電気化学秋季大会  2015.9.11 

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    Venue:JAPAN 深谷市  

  327. “Operando/in-situ observation of energy devices using synchrotron X-ray" International conference

    NAKAMURA Takashi

    UW-IFS Workshop 2018  2018.10.22 

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  328. Y添加BaZrO<SUB>3</SUB>の水和による化学膨張

    今井玄行, 中村崇司, 雨澤浩史

    2014年度第14回多元物質科学研究所研究発表会  2014.12.5 

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    Venue:JAPAN 仙台市  

  329. X線透過イメージング法を用いたLiイオン電池合材正極における電解液中の電解質濃度分布の直接評価

    千葉一暉, 木村勇太, 中村崇司, 山重寿夫, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    電気化学会第84回大会  2017.3.25 

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    Venue:JAPAN 東京都八王子市(首都大学東京 南大沢キャンパス)  

  330. X線透過イメージング法とX線吸収分光法の併用によるLiイオン電池合材正極における電解質濃度・反応分布の直接観察

    木村勇太, 千葉一暉, 中村崇司, 山重寿夫, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    第58回電池討論会  2017.11.14 

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    Venue:JAPAN 福岡  

  331. X線吸収分光法を用いたLiCoO<SUB>2</SUB>合材電極内部の反応分布の評価

    渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 尾原幸治, 内本喜晴, 小久見善八

    第39回固体イオニクス討論会  2013.11.20 

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    Venue:熊本  

  332. X線吸収分光法による全固体LiCoO<SUB>2</SUB>薄膜電極の充放電挙動の評価

    王芳, 中村崇司, 桑田直明, 河村純一, 雨澤浩史

    第2回東北大&GREEN合同シンポジウム  2015.10.30 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 仙台(東北大学 片平キャンパス)  

  333. X線吸収分光法によるエネルギー変換デバイスのオペランド観測

    雨澤浩史, 藤巻義信, 大池諒, 中村崇司, 川田達也, 内本喜晴, 谷田肇, 新田清文, 寺田靖子, 為則雄祐, 宇留賀朋哉

    放射光学会第7回若手研究会「最先端オペランド観測で明らかになる物性科学」  2014.9.29 

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    Presentation type:Oral presentation (invited, special)  

    Venue:JAPAN 東京  

  334. X線吸収分光法によるLiCoO<SUB>2</SUB>合材電極における反応分布の評価

    渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 尾原幸治, 内本喜晴, 小久見善八

    第9回固体イオニクスセミナー  2013.9.8 

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    Presentation type:Poster presentation  

    Venue:岐阜県下呂市  

  335. X線吸収分光法によるLiCoO2 合材電極における有効反応場の評価

    渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 尾原幸治, 内本喜晴, 小久見善八

    電気化学会創立80周年記念大会  2013.3.29 

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    Presentation type:Oral presentation (general)  

    Venue:仙台  

  336. What determines the reaction distribution in LiCoO<SUB>2</SUB> composite cathode for Li ion batteries? Answers from operando 2D-XAS measurements International conference

    Yuta Kimura, Kazuki Chiba, Toshiki Watanabe, Takashi Nakamura, Koji Amezawa, Hajime Tanida, Yoshiharu Uchimoto, Zempachi Ogumi

    Kyoto International Forum for Environment and Energy-8  2015.9.20 

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    Presentation type:Oral presentation (general)  

    Venue:Norway Trondheim  

  337. V結像型CT-XAFSによる全固体電池合剤正極内の反応分布の高解像度オペランド3次元計測

    木村勇太, 黄溯, 中村崇司, 石黒志, 関澤央輝, 新田清文, 宇留賀朋哉, 竹内友成, 奥村豊旗, 唯美津木, 内本喜晴, 雨澤浩史

    第47回固体イオニクス討論会  2021.12.9 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  338. Two-dimensional X-ray absorption spectroscopic analysis of reaction distribution in composite cathodes for bulk-type all-solid-state lithium-ion batteries International conference

    Mahunnop Fakkao, Kazuki Chiba, Abhilasha Devaraj, Yuta Kimura, Takashi Nakamura, Toyoki Okumura, Kiyofumi Nitta, Yasuko Terada, Yoshiharu Uchimoto, Koji Amezawa

    21st International Conference on Solid State Ionics  2017.6.18 

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    Venue:Italy Padua  

  339. The Effect of Cation Substitution on Chemical Stability of Ba<SUB>0.5</SUB>Sr<SUB>0.5</SUB>Co<SUB>0.8</SUB>Fe<SUB>0.2</SUB>O<SUB>3-δ</SUB>-Based Mixed Conductors International conference

    F.Wang, T.Nakamura, K.Yashiro, J.Mizusaki, K.Amezawa

    13th International Symposium on Solid Oxide Fuel Cells(SOFC-XIII)  2013.10.6 

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    Presentation type:Poster presentation  

    Venue:Okinawa  

  340. Temperature Dependence of Carbon Deposition in Ni-YSZ Cermet with Various Steam/Carbon Ratio International conference

    Y. Shinomiya, N. Ohmura, T.Nakamura, K. Matsuoka, T. Kudo, K. Yashiro, T. Kawada, K. Amezawa

    PRiME 2016  2016.10.2 

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    Presentation type:Oral presentation (general)  

    Venue:United States Honolulu  

  341. Tailoring of the Chemical Stability of (Ba,Sr)(Co,Fe)O3-Based Perovskite Mixed Conductors International conference

    Fang Wang, Koki Igarashi, Takashi Nakamura, Keiji Yashiro, Junichiro Mizusaki, Koji Amezawa

    20th International Conference on Solid State Ionics (SSI-20)  2015.6.14 

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    Presentation type:Oral presentation (general)  

    Venue:United States Keystone, Colorado  

  342. Surface Modification of LaNi<SUB>0.6</SUB>Fe<SUB>0.4</SUB>O<SUB>3-δ</SUB> Film Electrode by Ce<SUB>0.9</SUB>Gd<SUB>0.1</SUB>O<SUB>1.95</SUB> Porous Layer International conference

    Riyan Achmad Budiman, Shin-ichi Hashimoto, Takashi Nakamura, Keiji Yashiro, Koji Amezawa, Tatsuya Kawada

    227th ECS Meeting  2015.5.24 

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    Presentation type:Oral presentation (general)  

    Venue:United States Chicago, Illinois  

  343. Suppression of Carbon Deposition on Ni-YSZ Cermet by Loading CeO<SUB>2-</SUB>Ag Catalyst

    サエフルデイン, 香山智之, 中村崇司, 雨澤浩史

    電気化学会第82回大会  2015.3.15 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 横浜市  

  344. Structural Changes of Ni/YSZ Cermet for Solid Oxide Fuel Cells in Hydrocarbon Gas Containing Atmospheres International conference

    T.Nakamura, N.Ohmura, K.Yashiro, K.Amezawa

    13th International Symposium on Solid Oxide Fuel Cells(SOFC-XIII)  2013.10.6 

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    Presentation type:Poster presentation  

    Venue:Okinawa  

  345. SOFC電極反応評価のためのパターン緻密薄膜モデル電極の提案

    藤巻義信, 中村崇司, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第10回固体イオニクスセミナー  2014.8.31 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 秋田県仙北市  

  346. SOFC空気極反応に及ぼす三相界面反応の寄与

    藤巻義信, 水野敬太, 木村勇太, 中村崇司, 新田清文, 寺田靖子, 八代圭司, 川田達也, 井口史匡, 湯上浩雄, 雨澤浩史

    電気化学会第84回大会  2017.3.25 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 東京都八王子市(首都大学東京 南大沢キャンパス)  

  347. SOFC空気極反応における三相界面反応の影響の評価

    水野敬太, 藤巻義信, 中村崇司, 木村勇太, 新田清文, 関澤央輝, 寺田靖子, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    電気化学会東北支部 第30回東北若手の会  2017.11.24 

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    Presentation type:Poster presentation  

    Venue:JAPAN 仙台市太白区秋保  

  348. SOFC空気極における有効反応場長に及ぼす運転条件の影響

    進藤勇佑, 藤巻義信, 中村崇司, 井口史匡, 湯上浩雄, 八代圭司, 川田達也, 雨澤浩史

    第41回固体イオニクス討論会  2015.11.25 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 札幌市  

  349. SOFC用空気極材料LaNi<SUB>0.6</SUB>Co<SUB>0.4</SUB>O<SUB>3-δ</SUB>における酸素不定比性の評価

    渦巻裕也, BudimanRiyanAchmad, 橋本真一, 中村崇司, 八代圭司, 雨澤浩史, 川田達也

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  350. SOFC混合導電性空気極の電気化学的反応における三相界面反応の影響

    水野敬太, 藤巻義信, 木村勇太, 中村崇司, 新田清文, 寺田靖子, 井口史匡, 湯上浩雄, 八代圭司, 川田達也, 雨澤浩史

    第42回固体イオニクス討論会  2016.12.5 

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    Venue:JAPAN 名古屋市  

  351. SOFC混合導電性空気極の電極反応に対する三相界面反応の寄与

    水野敬太, 藤巻義信, 中村崇司, 木村勇太, 新田清文, 寺田靖子, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第43回固体イオニクス討論会  2017.12.5 

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    Venue:JAPAN 山形県天童市  

  352. SOFC混合導電性空気極の電極反応に及ぼす水蒸気の影響

    水野敬太, 藤巻義信, 中村崇司, 木村勇太, 関澤央輝, 新田清文, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第44回固体イオニクス討論会  2018.12.5 

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    Venue:京都  

  353. SOFC混合導電性空気極における電極反応がCr被毒に及ぼす影響

    影山将汰, 進藤勇佑, 藤巻義信, 水野敬太, 木村勇太, 中村崇司, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第31回東北若手の会  2018.11.25 

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    Venue:福島県郡山市  

  354. SOFC混合導電性空気極における性能劣化に電極反応が与える影響

    影山将汰, 進藤勇佑, 藤巻義信, 水野敬太, 木村勇太, 中村崇司, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第45回固体イオニクス討論会  2019.11.26 

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    Venue:福岡  

  355. SOFC混合導電性空気極におけるCr被毒に影響を与える因子の検討

    影山将汰, 進藤勇佑, 藤巻義信, 水野敬太, 木村勇太, 中村崇司, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    電気化学会第86回大会  2019.3.27 

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    Venue:京都  

  356. SOFC混合導電性空気極におけるCr被毒に及ぼす電極反応の影響

    影山将汰, 進藤勇佑, 藤巻義信, 水野敬太, 木村勇太, 中村崇司, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第44回固体イオニクス討論会  2018.12.5 

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    Venue:京都  

  357. SOFC低温作動化を目指したヘテロ界面電極の創成

    八代圭司, 中村崇司, 水崎純一郎, 雨澤浩史, 井口史匡, 柴田佳和, 大沢洋平, 熊谷貴博, 湯上浩雄, 川田達也

    第21回SOFC研究発表会  2012.12.17 

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    Venue:JAPAN 東京  

  358. SOFCコンポジット電極における反応経路の解明

    今泉貴明, 水野敬太, 藤巻義信, 木村勇太, 中村崇司, 井口史匡, 湯上浩雄, 新田清文, 関澤央輝, 八代圭司, 川田達也, 雨澤浩史

    第31回東北若手の会  2018.11.25 

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    Venue:福島県郡山市  

  359. SOFCの起動停止および運転動作におけるセル・スタック動的挙動の評価

    川田達也, 渡邊智, 坂本正, 村松眞由, 八代圭司, 橋本真一, 佐藤一永, 橋田俊之, 井口史匡, 湯上浩雄, 佐藤維美, 寺田賢二郎, 木村勇太, 中村崇司, 雨澤浩史, 尾澤伸樹

    第25回SOFC研究発表会  2016.12.15 

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    Venue:JAPAN 東京(科学技術館 サイエンスホール)  

  360. SOFCにおける空気極の基礎物性と組成・界面領域設計のためのエンジニアリング

    橋本真一, 渦巻裕也, 工藤ほなみ, Riyan Achmad Budiman, 八代圭司, 藤巻義信, 中村崇司, 雨澤浩史, 川田達也

    第22回SOFC研究発表会  2013.12.19 

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    Venue:東京  

  361. SOFCにおける機械特性とシュミレーション技術

    渡辺智, 寺田賢二郎, 佐藤一永, 井口史匡, 橋田俊之, 坂本正, 中村崇司, 宇根本篤, 尾澤伸樹, 八代圭司, 橋本真一, 雨澤浩史, 湯上浩雄, 川田達也

    第22回SOFC研究発表会  2013.12.19 

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    Venue:東京  

  362. Reaction distribution in Mixed-Conducting SOFC Cathodes Investigated with Patterend Thin Film Electrodes International conference

    K. Amezawa, Y. Fujimaki, Y. Shindo, T. Nakamura, F.Iguchi, K. Yashiro, H. Yugami, T. Kawada, K. Nitta, Y. Terada

    229th ECS  2016.5.29 

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    Venue:United States Sandiego  

  363. オペランド2次元X線吸収分光法によるLiイオン電池合材正極における反応分布形成要因の解明

    千葉一暉, 木村勇太, 中村崇司, 山重寿夫, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    第20回XAFS討論会  2017.8.4 

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    Venue:JAPAN 姫路市  

  364. ペロブスカイト型酸化物空気極における表面状態の影響

    八代圭司, 佐藤宏樹, 中村崇司, 橋本真一, 雨澤浩史, 川田達也

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  365. ペロブスカイト型酸フッ化物を母材とした新規フッ化物イオン伝導体の開発

    眞田 喬徳, 本橋 宏大, 木村 勇太, 中村 崇司, 内本 喜晴, 雨澤 浩史

    2021年 電気化学秋季大会  2021.9.8 

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  366. プロトン伝導性固体電解質におけるイオン輸送効率向上の検討

    中村崇司, 水沼秀介, 木村勇太, 山内孝祐, 見神祐一, 黒羽智宏, 辻庸一郎, 谷口昇, 奥山勇治, 雨澤浩史

    電気化学会第84回大会  2017.3.25 

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    Venue:JAPAN 東京都八王子市(首都大学東京 南大沢キャンパス)  

  367. プロトン伝導性セラミックス燃料電池の空気極における反応経路の解明

    四宮由貴, 木村勇太, 中村崇司, 八代圭司, 川田達也, 雨澤浩史

    第26回SOFC研究発表会  2017.12.14 

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    Venue:JAPAN 東京  

  368. パターン電極を用いたSOFC空気極のCr被毒現象の解析

    進藤勇祐, 藤巻義信, 井口史匡, 湯上浩雄, 中村崇司, 雨澤浩史, 八代圭司, 川田達也

    第25回SOFC研究発表会  2016.12.15 

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    Venue:JAPAN 東京(科学技術館 サイエンスホール)  

  369. パターン電極の交流インピーダンス測定によるSOFC空気極の有効反応場の実験的評価

    進藤勇佑, 藤巻義信, 中村崇司, 井口史匡, 湯上浩雄, 八代圭司, 川田達也, 雨澤浩史

    2015年電気化学秋季大会  2015.9.11 

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    Venue:JAPAN 深谷市  

  370. パターン緻密薄膜電極を用いたSOFC空気極における電極反応場の定量評価

    藤巻義信, 中村崇司, 八代圭司, 川田達也, 井口史匡, 湯上浩雄, 新田清文, 寺田靖子, 雨澤浩史

    第12回固体イオニクスセミナー  2016.9.27 

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    Venue:JAPAN 指宿市  

  371. パターン緻密薄膜電極を用いたSOFC 空気極の反応分布評価

    藤巻 義信, 進藤 勇佑, 中村 崇司, 八代 圭司, 井口 史匡, 湯上 浩雄, 川田 達也, 新田 清文, 寺田 靖子, 雨澤 浩史

    第24回SOFC研究発表会  2015.12.16 

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    Venue:JAPAN 東京  

  372. パターン緻密膜電極を用いたランタンストロンチウムコバルタイトPCFC空気極の反応サイト評価

    西舘克弥, 四宮由貴, 水野敬太, 木村勇太, 中村崇司, 八代圭司, 川田達也, 見神祐一, 尾沼重徳, 黒羽智宏, 谷口昇, 辻庸一郎, 雨澤浩史

    第44回固体イオニクス討論会  2018.12.5 

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    Venue:京都  

  373. パターン緻密膜電極を用いたランタンコバルタイト PCFC空気極における反応サイト評価

    雨澤 浩史, 四宮 由貴, 水野 敬太, 西舘 克弥, 木村勇太, 中村 崇司, 八代 圭司, 川田 達也, 見神 祐一, 尾沼 重徳, 黒羽 智宏, 谷口 昇, 辻 庸一郎

    2018年電気化学秋季大会  2018.9.25 

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    Venue:石川県金沢市  

  374. パターン緻密膜電極を用いたプロトン伝導性セラミックス燃料電池正極材料Ba0.5La0.5CoO3-δにおける反応機構の解明

    吉岡輝紀, 西舘克弥, 木村勇太, 中村崇司, 見神祐一, 黒羽智宏, 八代圭司, 川田達也, Kwati Leonard, 松本広重, 雨澤浩史

    第21回東北大学多元物質科学研究所研究発表会  2021.12.10 

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    Language:English   Presentation type:Poster presentation  

  375. パターン緻密膜電極を用いたSOFC空気極の反応および劣化メカニズムの解析

    藤巻義信, 水野敬太, 進藤勇祐, 井口史匡, 湯上浩雄, 木村勇太, 中村崇司, 雨澤浩史, 八代圭司, 川田達也, 新田清文, 寺田靖子

    第25回SOFC研究発表会  2016.12.15 

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    Venue:JAPAN 東京(科学技術館 サイエンスホール)  

  376. パターン緻密膜電極を用いたSOFC空気極におけるCr被毒現象の解明

    影山将汰, 進藤勇佑, 藤巻義信, 水野敬太, 木村勇太, 中村崇司, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第43回固体イオニクス討論会  2017.12.5 

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    Venue:JAPAN 山形県天童市  

  377. パターン緻密膜電極を用いたSOFC空気極におけるCr被毒メカニズムの評価

    進藤勇佑, 藤巻義信, 中村崇司, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第24回SOFC研究発表会  2015.12.16 

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    Venue:JAPAN 東京都千代田区  

  378. パターン緻密膜電極を用いたSOFC空気極におけるCr被毒メカニズムの評価

    進藤勇佑, 藤巻義信, 中村崇司, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第15回多元物質科学研究所研究発表会  2015.12.22 

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    Venue:JAPAN 仙台市  

  379. パターン緻密膜電極を用いたSOFC空気極におけるCr析出現象の解析

    進藤勇佑, 藤巻義信, 中村崇司, 八代圭司, 井口史匡, 湯上浩雄, 八代圭司, 川田達也, 雨澤浩史

    電気化学会第83回大会  2016.3.29 

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    Venue:JAPAN 吹田市  

  380. パターン緻密膜モデル電極を用いた混合導電性SOFC空気極における反応経路評価

    雨澤浩史, 水野敬太, 藤巻義信, 木村勇太, 中村崇司, 新田清文, 寺田靖子, 井口史匡, 八代圭司, 湯上浩雄, 川田達也

    2017年電気化学秋季大会  2017.9.10 

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    Venue:JAPAN 長崎  

  381. パターン緻密膜モデル電極を用いたSOFC混合導電性空気極におけるCr被毒の解明

    影山将汰, 進藤勇佑, 藤巻義信, 水野敬太, 木村勇太, 中村崇司, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第26回SOFC研究発表会  2017.12.14 

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    Venue:JAPAN 東京  

  382. パターン緻密膜モデル電極を用いたPCFC空気極BaGd<sub>0.3</sub>La<sub>0.7</sub>Co<sub>2</sub>O<sub>6-δ</sub>における電極反応機構の評価

    西舘克弥, 四宮由貴, 水野敬太, 木村勇太, 中村崇司, 八代圭司, 川田達也, R. Strandbakke, I. Szpunar, 見神祐一, 後藤丈人, 寺山健, 黒羽智宏, 辻庸一郎, 雨澤浩史

    第45回固体イオニクス討論会  2019.11.26 

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    Venue:福岡  

  383. パターン緻密膜モデル電極によるSOFC混合導電性空気極における三相界面反応の影響

    水野敬太, 藤巻義信, 中村崇司, 木村勇太, 新田清文, 関澤央輝, 寺田靖子, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    第26回SOFC研究発表会  2017.12.14 

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    Venue:JAPAN 東京  

  384. パターンモデル電極によるPCFC空気極La<SUB>0.6</SUB>Sr<SUB>0.4</SUB>CoO<SUB>3-δ</SUB>における電極反応機構の解析

    2019.3.27 

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  385. タイソナイト型La<SUB>0.93</SUB>Ba<SUB>0.07</SUB>F<SUB>2.93</SUB>の微細構造制御によるイオン伝導特性の向上

    本橋宏大, 木村勇太, 中村崇司, 内本喜晴, 雨澤浩史

    電気化学会第85回大会  2018.3.9 

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  386. タイソナイト型(La,Ba)F<SUB>3</SUB>のイオン伝導特性に及ぼす微細構造の影響

    本橋宏大, 木村勇太, 中村崇司, 雨澤浩史

    第43回固体イオニクス討論会  2017.12.5 

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    Venue:JAPAN 山形県天童市  

  387. タイソナイト型(La, Ba)F<SUB>3</SUB>の微細構造制御によるイオン伝導特性の向上

    本橋宏大, 木村勇太, 中村崇司, 雨澤浩史

    第13回固体イオニクスセミナー  2017.9.12 

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    Venue:JAPAN 宮崎  

  388. タイソナイト型(La, Ba)F<SUB>3</SUB>の微細構造制御によるイオン伝導特性の向上

    本橋宏大, 木村勇太, 中村崇司, 雨澤浩史

    電気化学会東北支部 第30回東北若手の会  2017.11.24 

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    Venue:JAPAN 仙台市太白区秋保  

  389. カーボン酸化触媒によるSOFC燃料極の耐久性向上

    香山智之, 八代圭司, 中村崇司, 雨澤浩史

    電気化学会第82回大会  2015.3.15 

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    Venue:JAPAN 横浜市  

  390. カチオン不定比が複合酸化物の導電性に与える影響

    岡本悠佑, 桑原彰秀, 中村崇司, 川田達也, 雨澤浩史

    第41回固体イオニクス討論会  2015.11.25 

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    Venue:JAPAN 札幌市  

  391. オペランド3次元CT-XAFSを用いた酸化物型全固体リチウムイオン電池合材電極内の反応分布評価

    木村勇太, Mahunnop Fakkao, 大崎静夏, 高野彬, 中村崇司, 伊奈稔哲, 石黒志, 関澤央輝, 宇留賀朋哉, 奥村豊旗, 唯美津木, 内本喜晴, 雨澤浩史

    電気化学会東北支部 第30回東北若手の会  2017.11.24 

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    Venue:JAPAN 仙台市太白区秋保  

  392. オペランド計測に基づく固体酸化物形燃料電池用電極の材料設計

    雨澤浩史, 藤巻義信, 中村崇司, 新田清文, 寺田靖子, 井口史匡, 湯上浩雄, 川田達也

    平成27年度資源・素材関係学協会合同秋季大会  2015.9.8 

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    Venue:JAPAN 松山市  

  393. オペランド二次元X線吸収分光法を用いた全固体硫化物型リチウム二次電池における反応分布解析

    新庄紗枝, 作田敦, 折笠有基, 陳科政, 森拓弥, 山本健太郎, 倉谷健太郎, 竹内友成, 林晃敏, 辰巳砂昌引, 木村勇太, 中村崇司, 雨澤浩史, 内本喜晴

    第57回電池討論会  2016.11.29 

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    Venue:JAPAN 千葉市  

  394. オペランドマイクロX線吸収分光法を用いたSOFC電解質における酸素ポテンシャル分布の実験的評価

    柳将陽, 木村勇太, 中村崇司, 影山将汰, 且井宏和, 新田清文, 関澤央輝, 雨澤浩史

    第47回固体イオニクス討論会  2021.12.8 

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  395. オペランドX線透過イメージング法・2次元X線吸収分光法によるLiイオン電池合材正極における反応分布形成要因の解明

    千葉一暉, 木村勇太, 中村崇司, 山重寿夫, 新田清文, 寺田靖子, 内本喜晴, 雨澤浩史

    2017年電気化学秋季大会  2017.9.10 

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    Venue:JAPAN 長崎  

  396. オペランドCT-XAFSを用いた全固体リチウムイオン電池合剤電極の微細構造と不均一反応の相関解明

    木村 勇太, 戸村 愛菜, 黄溯, 中村 崇司, 石黒 志, 関澤 央輝, 新田 清文, 宇留賀 朋哉, 奥村 豊旗, 唯 美津木, 内本 喜晴, 雨澤 浩史

    第45回固体イオニクス討論会  2019.11.26 

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    Venue:福岡  

  397. オペランドCT-XAFSによる全固体リチウムイオン電池合剤電極内の不均一反応の可視化計測

    木村 勇太, 戸村 愛菜, 黄溯, 中村 崇司, 石黒 志, 関澤 央輝, 新田 清文, 宇留賀 朋哉, 奥村 豊旗, 唯 美津木, 内本 喜晴, 雨澤 浩史

    第19回多元物質科学研究所発表会  2019.12.12 

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    Venue:宮城県仙台市  

  398. オペランドCT-XAFSによるバルク型全固体リチウムイオン電池合剤電極内充電量3次元マッピングに基づく反応分布形成要因の解析

    戸村 愛菜, 黄溯, 木村 勇太, 中村 崇司, 石黒 志, 関澤 央輝, 新田 清文, 宇留賀 朋哉, 奥村 豊旗, 唯 美津木, 内本 喜晴, 雨澤 浩史

    第15回固体イオニクスセミナー  2019.9.1 

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    Venue:大津  

  399. オペランドCT-XAFSおよびFIB-SEMを用いたバルク型全固体リチウムイオン電池合剤電極内反応分布の形成要因の解明

    戸村 愛菜, 黄溯, 木村 勇太, 中村 崇司, 石黒 志, 関澤 央輝, 新田 清文, 宇留賀 朋哉, 奥村 豊旗, 唯 美津木, 内本 喜晴, 雨澤 浩史

    第60回電池討論会  2019.11.13 

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    Venue:京都  

  400. オペランド3次元イメージングXAFSを用いたバルク型全固体リチウムイオン電池用合材電極内の反応分布評価

    Mahunnop Fakkao, 大崎静夏, 高野彬, 木村勇太, 中村崇司, 奥村豊旗, 伊奈稔哲, 石黒志, 関澤央輝, 宇留賀朋哉, 唯美津木, 内本喜晴, 雨澤浩史

    第43回固体イオニクス討論会  2017.12.5 

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    Venue:JAPAN 山形県天童市  

  401. ペロブスカイト関連構造酸フッ化物を母材とする新規フッ化物イオン伝導体の開発

    眞田喬徳, 本橋宏大, 木村勇太, 中村崇司, 内本喜晴, 雨澤浩史

    第47回固体イオニクス討論会  2021.12.9 

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  402. 固体電解質セルによるペロブスカイト関連構造酸化物の異種アニオン欠陥能動制御

    勝又 琢也, 木幡 壮真, 木村 勇太, 雨澤 浩史, 中村 崇司

    2021年 電気化学秋季大会  2021.9.8 

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  403. 固体電解質を用いた電気化学リアクターによるアニオンドー プ技術の開発

    勝又琢也, 山本孟, 麻生亮太郎, 木村勇太, 雨澤浩史, 中村 崇司

    第47回固体イオニクス討論会  2021.12.9 

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  404. 固体電解質の混合伝導性に着目したプロトン伝導型燃料電池電解質材料設計

    水沼秀介, 中村崇司, 山内孝祐, 見神祐一, 黒羽智宏, 谷口昇, 雨澤浩史

    26th Annual Meeting of MRS-Japan 2016  2016.12.19 

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    Venue:JAPAN 横浜  

  405. 固体電解質の混合伝導性に着目したプロトン伝導型燃料電池の電解質最適膜厚の検討

    水沼秀介, 中村崇司, 山内孝佑, 見神祐一, 黒羽智宏, 雨澤浩史

    電気化学会第83回大会  2016.3.29 

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    Venue:JAPAN 吹田市  

  406. 固体電解質の混合伝導性に着目したプロトン伝導型燃料電池の開発指針

    中村崇司, 水沼秀介, 山内孝佑, 見神祐一, 黒羽智宏, 雨澤浩史

    電気化学会第83回大会  2016.3.29 

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    Venue:JAPAN 吹田市  

  407. 固体電解質における化学ポテンシャル分布のエントロピー生成極小の定理に基づく評価

    木村勇太, 中村崇司, 雨澤浩史

    第14回固体イオニクスセミナー  2018.9.2 

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  408. 固体電解質におけるリチウム化学ポテンシャル分布に基づく全固体電池の界面設計

    志水哲也, 木村勇太, 中村崇司, 藤崎貴也, 入山恭寿, 雨澤浩史

    第47回固体イオニクス討論会  2021.12.10 

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  409. 固体イオニクスデバイスの放射光オペランド計測

    雨澤浩史, 中村崇司, 木村勇太

    第2回横串研究会プログラム  2019.2.18 

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    Venue:仙台  

  410. 固体イオニクスに立脚したエコエネルギー変換デバイスの開発

    雨澤浩史, 八代圭司, 中村崇司

    附置研究所間アライアンスによるナノとマクロをつなぐ物質・デバイス・システム創製戦略プロジェクト  2013.4.23 

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    Venue:札幌  

  411. 固体イオニクスに立脚したエコエネルギー変換デバイスの開発

    雨澤浩史, 中村崇司

    ナノマクロ物質・デバイス・システム創製アライアンス  2013.11.19 

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    Venue:仙台  

  412. 固体イオニクスに立脚したエコエネルギー変換デバイスの開発

    雨澤浩史, 中村崇司

    ナノマクロ物質・デバイス・システム創製アライアンス 平成26年度 新エネルギー材料・デバイスプロジェクトグループ研究会  2014.11.11 

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    Venue:JAPAN 大阪  

  413. 固体イオニクスに立脚したエコエネルギー変換デバイスの開発

    雨澤浩史, 中村崇司

    ナノマクロ物質・デバイス・システム創成アライアンス 平成27年度新エネルギー材料・デバイスプロジェクトグループ(G2)研究会  2015.10.20 

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    Venue:JAPAN 東京(東京工業大学 大岡山キャンパス)  

  414. Oxygen Nonstoichiometry and Electrical Conduction in Hexagonal YMnO<sub>3+δ</sub>

    Yafeng DU, Takashi NAKAMURA, Yuta KIMURA, Koji AMEZAWA

    28th Annual Meeting of MRS-Japan 2018  2018.12.18  MRS-J

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    Venue:Kitakyushu  

  415. 全固体電池解析に向けたその場観察手法の開発

    王芳, 中村崇司, 桑田直明, 雨澤浩史

    先端的低炭素化技術開発(ALCA)-特別重点技術領域「次世代蓄電池」ALCA-SPRING 電池材料解析ワークショップ  2014.9.5 

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    Venue:JAPAN つくば市  

  416. 全固体リチウム電池正極のオペランド軟X線XAS測定

    王芳, 中村崇司, 為則雄祐, 桑田直明, 河村純一, 雨澤浩史

    第56回電池討論会  2015.11.11 

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    Venue:JAPAN 名古屋市  

  417. 全固体Liイオン電池正極材料における応力-Li化学ポテンシャル間相互作用の理論的解析

    木村勇太, 舟山啓太, Mahunnop Fakkao, 中村崇司, 桑田直明, 川田達也, 河村純一, 雨澤浩史

    電気化学会第83回大会  2016.3.29 

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    Venue:JAPAN 吹田市  

  418. 低温域における Ni 酸化時の異常収縮現象

    八代圭司, 渡辺智, 村松真由, 川田達也, 中村崇司, 雨澤浩史, 水崎純一郎, 坂本正, 尾澤伸樹, 佐藤一永, 橋田俊之, 井口史匡, 橋本真一, 湯上浩雄, 宇根本篤, 寺田賢二郎, 岸本治夫, 山地克彦

    第 23 回 SOFC 研究発表会  2014.12.16 

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    Venue:JAPAN 東京  

  419. 低温作動化SOFCを目指した空気極材料の開発・評価

    八代圭司, 佐藤宏樹, 五井有基, 中村崇司, 橋本真一, 雨澤浩史, 川田達也

    第22回SOFC研究発表会  2013.12.19 

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    Venue:東京  

  420. 二次元X線吸収分光法を用いた全固体リチウムイオン二次電池の電極内反応分布観察

    陳科政, 作田敦, 山本健太郎, 新庄紗枝, 倉谷健太郎, 竹内友成, 林晃敏, 辰巳砂昌弘, 木村勇太, 中村崇司, 雨澤浩史, 内本喜晴

    第43回固体イオニクス討論会  2017.12.5 

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    Venue:JAPAN 山形県天童市  

  421. 二次元X線吸収分光法によるLiCoO<SUB>2</SUB>合材電極における反応分布の評価

    渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 尾原幸治, 内本喜晴, 小久見善八

    多元物質科学研究所研究発表会  2013.12.6 

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    Venue:仙台  

  422. 二次元X線吸収分光その場測定によるLiCoO<SUB>2</SUB>合材電極内の反応分布の評価

    木村勇太, 千葉一暉, 渡邊俊樹, 中村崇司, 雨澤浩史, 谷田肇, 内本喜晴, 小久見善八

    2015年電気化学秋季大会  2015.9.11 

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    Venue:JAPAN 深谷市  

  423. 二次元XAFSによるリチウムイオン電池正極における反応分布の評価

    中村崇司, 渡邊俊樹, 雨澤浩史, 谷田肇, 尾原幸治, 内本喜晴, 小久見善八

    第9回固体イオニクスセミナー  2013.9.8 

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    Venue:岐阜県下呂市  

  424. リチウム過剰系正極材料Li-Mn-Ni-Oにおける酸素脱離現象の評価

    郜洪澤, 中村崇司, 木村勇太, 雨澤浩史

    第57回電池討論会  2016.11.29 

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    Venue:JAPAN 千葉市  

  425. リチウムイオン電池正極材料における応力誘起の化学ポテンシャル変調の定量的評価

    芳賀義弥, 船山啓太, 木村勇太, 中村崇司, 桑田直明, 川田達也, 河村純一, 雨澤浩史

    電気化学会東海支部・東北支部合同シンポジウム【第52回セミコンファレンス・第34回東北若手の会】  2021.11.22 

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  426. ランタンコバルタイト系酸化物のカチオン不定比が酸素不定比に及ぼす影響

    岡本悠佑, 桑原彰秀, 中村崇史, 雨澤浩史

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  427. モデル電極を用いたSOFC混合導電性空気極におけるCr被毒現象のメカニズム解明

    影山将汰, 進藤勇佑, 藤巻義信, 水野敬太, 木村勇太, 中村崇司, 井口史匡, 八代圭司, 湯上浩雄, 川田達也, 雨澤浩史

    電気化学会第85回大会  2018.3.9 

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  428. メカニカルミリング法により作製されたLi添加NH<sub>4</sub>MgF<sub>3</sub>の相状態と電気伝導特性

    本橋宏大, 松川陽介, 中村崇司, 木村勇太, 内本喜晴, 雨澤浩史

    第15回固体イオニクスセミナー  2019.9.1 

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    Venue:大津  

  429. メカニカルミリング法により作製されたLi添加NH<sub>4</sub>MgF<sub>3</sub>におけるイオン伝導特性

    本橋宏大, 松川陽介, 中村崇司, 木村勇太, 内本喜晴, 雨澤浩史

    第45回固体イオニクス討論会  2019.11.26 

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    Venue:福岡  

  430. ポテンシャル分布に基づいた全固体電池設計指針

    中村崇司, 木村勇太, 雨澤浩史, Jurgen Janek

    第59回電池討論会  2018.11.27 

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    Venue:大阪  

  431. ポテンシャル分布に基づいた全固体電池設計指針

    NAKAMURA Takashi, AMEZAWA Koji

    第9回 物質・デバイス領域共同研究拠点活動報告会  2019.7.1 

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  432. ペロブスカイト関連酸化物のヘテロ界面における酸素還元特性その2

    佐藤宏樹, 八代圭司, 橋本真一, 中村崇司, 雨澤浩史, 川田達也

    2013年電気化学秋季大会  2013.9.27 

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    Venue:東京  

  433. ペロブスカイト関連酸化物のヘテロ界面における酸素還元特性

    八代圭司, 中村崇司, 水崎純一郎, 川田達也, 雨澤浩史

    電気化学会創立80周年記念大会  2013.3.29 

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    Venue:仙台  

  434. 固体電解質ヘテロ界面におけるイオン整流現象

    本田美李, 中村崇司, 木村勇太, ürgen Janek, 雨澤浩史

    蓄電固体界面科学第一回若手勉強会  2019.12.22 

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    Venue:千葉  

  435. 炭化水素雰囲気下の Ni-YSZ サーメットにおける炭素析出と変形挙動

    大村信亮, 中村崇司, 雨澤浩史, 松岡孝司, 工藤孝夫, 川田達也

    第 23 回 SOFC 研究発表会  2014.12.16 

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    Venue:JAPAN 東京  

  436. 炭化水素含有雰囲気下でのNi/YSZサーメットにおける炭素析出と構造変化

    大村信亮, 中村崇司, 工藤孝夫, 佐藤康司, 雨澤浩史

    2014年電気化学会第81回大会  2014.3.29 

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    Venue:JAPAN 大阪  

  437. 炭化水素含有雰囲気におけるNi/YSZサーメットの構造変化

    大村信亮, 中村崇司, 八代圭司, 雨澤浩史

    第22回SOFC研究発表会  2013.12.19 

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    Venue:東京  

  438. 炭化水素含有雰囲気におけるNi/YSZの構造変化 (Structural Changes of Ni/YSZ Cermet under Hydrocarbon Gas Containing Atmospheres)

    大村信亮, 中村崇司, 八代圭司, 雨澤浩史

    第68回マテリアルズ・テーラリング研究会  2014.7.24 

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    Venue:JAPAN 軽井沢  

  439. 炭化水素含有ガス中のNi-YSZサーメットにおける炭素析出および変形に及ぼす温度の影響

    四宮由貴, 大村信亮, 中村崇司, 工藤孝夫, 松岡孝司, 八代圭司, 川田達也, 雨澤浩史

    電気化学会第83回大会  2016.3.29 

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    Venue:JAPAN 吹田市  

  440. 炭化水素ガス雰囲気におけるNi-YSZ サーメットでの炭素析出挙動

    四宮由貴, 大村信亮, 中村崇司, 松岡孝司, 工藤孝夫, 川田達也, 雨澤浩史

    第24回SOFC研究発表会  2015.12.16 

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    Venue:JAPAN 東京都千代田区  

  441. 炭化水素ガス導入時の炭素析出による Ni-YSZ サーメットの膨張挙動

    大村信亮, 中村崇司, 松岡孝司, 工藤孝夫, 雨澤浩史

    第55回電池討論会  2014.11.19 

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    Venue:JAPAN 京都  

  442. 炭化水素を含む雰囲気下のNi-YSZサーメットにおける炭素析出と膨張現象

    大村信亮, 中村崇司, 雨澤浩史, 松岡孝司, 工藤孝夫

    2014年電気化学会秋季大会  2014.9.27 

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    Venue:JAPAN 札幌市  

  443. 炭化水素を含むガス雰囲気下によるNi-YSZサーメットの構造変化

    大村信亮, 中村崇司, 八代圭司, 雨澤浩史

    多元物質科学研究所研究発表会  2013.12.6 

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    Venue:仙台  

  444. 添加種、添加量を変化させた希土類添加セリアの高温・雰囲気制御下における弾性率の評価

    遠藤靖大, 白井良和, 木村勇太, 中村崇司, 八代圭司, 橋本真一, 雨澤浩史, 川田達也

    第51回セラミックス基礎科学討論会  2013.1.9 

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    Venue:仙台  

  445. 混合伝導性ペロブスカイト酸化物のカチオン不定比が酸素不定比に及ぼす影響

    岡本 悠佑, 桑原 彰秀, 中村 崇司, 川田 達也, 雨澤 浩史

    電気化学会第82回大会  2015.3.15 

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    Venue:JAPAN 横浜市  

  446. 混合伝導性ペロブスカイト型酸化物のカオチン不定比が酸素不定比に及ぼす影響

    岡本悠佑, 桑原彰秀, 中村崇史, 川田達也, 雨澤浩史

    第10回固体イオニクスセミナー  2014.8.31 

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    Venue:JAPAN 秋田県仙北市  

  447. 混合伝導性ぺロブスカイト型酸化物のカチオン不定比が酸素不定比に及ぼす影響

    岡本悠佑, 桑原彰秀, 中村崇司, 川田達也, 雨澤浩史

    2014年度第14回多元物質科学研究所研究発表会  2014.12.5 

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    Venue:JAPAN 仙台市  

  448. 混合伝導性ぺロブスカイト型酸化物のカチオン不定比が酸素不定比に及ぼす影響

    岡本悠佑, 桑原彰秀, 中村崇司, 川田達也, 雨澤浩史

    第40回固体イオニクス討論会  2014.11.16 

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    Venue:JAPAN 東京  

  449. 混合伝導性 SOFC カ ソードにおける有効反応場の定量的評価

    雨澤浩史, 藤巻義信, 中村崇司, 八代圭司, 井口史匡, 湯上浩雄, 川田達也, K.Develos-Bagarinao, 山地克彦

    第 23 回 SOFC 研究発表会  2014.12.16 

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    Venue:JAPAN 東京  

  450. 水素直接溶解型プロトン伝導体ペロブスカイト型酸化物の還 元雰囲気での加湿による影響について

    大石昌嗣, 土井卓哉, 伊奈稔哲, 中村崇司, 酒井孝 明, 雨澤浩史, 奥山勇治

    第47回固体イオニクス討論会  2021.12.9 

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  451. 欠陥化学に基づいたリチウムイオン電池酸化物正極における酸素脱離メカニズムの解明

    中村崇司, Gao Hongze, 太田健斗, 木村勇太, 鶴田一樹, 為則雄祐, 雨澤浩史

    電気化学会第86回大会  2019.3.27 

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    Venue:京都  

  452. 機械的応力下におけるLiCoO<SUB>2</SUB>の相平衡に関する定量的考察

    木村勇太, 舟山啓太, Mahunnop Fakkao, 中村崇司, 桑田直明, 川田達也, 河村純一, 雨澤浩史

    第12回固体イオニクスセミナー  2016.9.27 

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    Venue:JAPAN 指宿市  

  453. 機械的応力がLiイオン電池用正極材料の相平衡に及ぼす影響の定量的評価

    木村勇太, 舟山啓太, Mahunnop Fakkao, 中村崇司, 桑田直明, 川田達也, 河村純一, 雨澤浩史

    第42回固体イオニクス討論会  2016.12.5 

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    Venue:JAPAN 名古屋市  

  454. 機械的応力がLiイオン二次電池正極活物質の電気化学特性に及ぼす影響

    舟山啓太, 中村崇司, 桑田直明, 川田達也, 河村純一, 雨澤浩史

    第10回固体イオニクスセミナー  2014.8.31 

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    Venue:JAPAN 秋田県仙北市  

  455. 機会的応力がLiイオン二次電池正極の電気化学特性に及ぼす影響

    舟山啓太, 中村崇司, 桑田直明, 河村純一, 川田達也, 雨澤浩史

    第39回固体イオニクス討論会  2013.11.20 

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    Venue:熊本  

  456. 核磁気共鳴イメージング(MRI)によるリチウムイオン二次電池合材正極の反応分布の直接観察

    今井玄行, 岩井良樹, 中村崇司, 桑田直明, 河村純一, 雨澤浩史

    固体化学の新しい指針を探る研究会第74回定例研究会「若手研究者による研究発表会」  2014.3.12 

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    Venue:JAPAN 東京  

  457. 有機無機ハイブリッドペロブスカイト関連化合物NH<sub>4</sub>MgF<sub>3</sub>および(NH<sub>4</sub>)<sub>2</sub>MgF<sub>4</sub>イオン伝導特性

    松川陽介, 木村勇太, 中村崇司, 内本喜晴, 雨澤浩史

    第44回固体イオニクス討論会  2018.12.5 

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    Venue:京都  

  458. 有機無機ハイブリッドペロブスカイト化合物NH<sub>4</sub>MgF<sub>3</sub>の電気化学特性評価

    本橋宏大, 松川陽介, 中村崇司, 木村勇太, 高村仁, 内本喜晴, 雨澤浩史

    第60回電池討論  2019.11.13 

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    Venue:京都  

  459. 有機無機ハイブリッドペロブスカイト化合物NH<SUB>4</SUB>MgF<SUB>3</SUB>のイオン伝導特性の評価

    松川陽介, 木村勇太, 中村崇司, 内本喜晴, 雨澤浩史

    電気化学会第85回大会  2018.3.9 

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  460. 有機無機ハイブリットペロブスカイト化合物のイオン伝導特性の評価

    本橋宏大, 松川陽介, 中村崇司, 木村勇太, Arunkumar Dorai, 河村純一, 内本喜晴, 雨澤浩史

    電気化学会第86回大会  2019.3.27 

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    Venue:京都  

  461. 放射光X線を用いた固体酸化物形燃料電池のオペランド計測

    雨澤浩史, 中村崇司, 川田達也

    2015年真空・表面科学合同講演会  2015.12.3 

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    Venue:JAPAN 茨城県つくば市  

  462. 放射光X線吸収分光法を用いた固体酸化物形燃料電池の電極反応解析

    雨澤浩史, 藤巻義信, 大池諒, 中村崇司, 新田清文, 寺田靖子, 為則裕雄, 川田達也

    第2回放射光利用研究セミナー  2015.3.30 

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    Venue:JAPAN 東京  

  463. 応力負荷によるLiイオン電池用正極のLi化学ポテンシャル変調の熱力学的解析

    木村勇太, 舟山啓太, Mahunnop Fakkao, 中村崇司, 桑田直明, 桑原彰秀, 川田達也, 河村純一, 雨澤浩史

    第15回多元物質科学研究所研究発表会  2015.12.22 

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    Venue:JAPAN 仙台市  

  464. 希土類―アルカリ土類金属フッ化物系非晶質材料の電気伝導特性

    織田島和樹, 本橋宏大, 眞田喬徳, 木村 勇太, 中村 崇司, 雨澤浩史

    電気化学会東海支部・東北支部合同シンポジウム【第52回セミコンファレンス・第34回東北若手の会】  2021.11.22 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  465. 層状ペロブスカイト酸化物における格子間酸素生成と格子変形の関係

    中村崇司, 水崎純一郎, 雨澤浩史

    第2回東北大&GREEN合同シンポジウム  2015.10.30 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 仙台(東北大学 片平キャンパス)  

  466. 層状ペロブスカイト型酸化物の酸素欠陥構造

    中村崇司, 雨澤浩史

    第9回固体イオニクスセミナー  2013.9.8 

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    Presentation type:Poster presentation  

    Venue:岐阜県下呂市  

  467. 層状ペロブスカイト型酸化物の酸素欠陥構造

    中村崇司, 雨澤浩史

    グローバル大学院「グローバル安全学トップリーダー育成プログラム」安全・安心工学コース分野横断型シンポジウム 「エネルギーシステムの安全,健全性」  2014.2.21 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 仙台  

  468. 層状ペロブスカイト型酸化物における電子構造と格子間酸素生成の関係

    中村崇司, 大池諒, 為則雄佑, 雨澤浩史

    2014年電気化学会秋季大会  2014.9.27 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 札幌市  

  469. 層状ペロブスカイト型酸化物における欠陥構造の評価

    中村崇司, 雨澤浩史

    第39回固体イオニクス討論会  2013.11.20 

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    Presentation type:Oral presentation (general)  

    Venue:熊本  

  470. 層状ペロブスカイト型酸化物La<SUB>2</SUB>NiO<SUB>4+δ</SUB>における電子構造と格子間酸素生成の検討

    中村崇司, LingYiHan, 大池諒, 為則雄佑, 雨澤浩史

    第40回固体イオニクス討論会  2014.11.16 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 東京  

  471. 層状ペロブスカイト型酸化物La<SUB>2</SUB>NiO<SUB>4+δ</SUB>における格子間酸素生成機構の検討

    中村崇司, 雨澤浩史

    第10回固体イオニクスセミナー  2014.8.31 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 秋田県仙北市  

  472. 導電性セラミックスにおける導電特性とひずみの関係性

    中村崇司, 川村佑介, 中川路周作, 八代圭司, 雨澤浩史, 水崎純一郎

    第8回固体イオニクスセミナー  2012.9.2 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 奈良  

  473. 実環境計測に基づく高性能SOFC電極の設計

    雨澤浩史, 中村崇司, 八代圭司, 藤巻義信, 川田達也, 大池諒, 井口史匡, 橋本真一, 湯上浩雄, 寺田靖子, 為則雄祐

    第21回SOFC研究発表会  2012.12.17 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 東京  

  474. 多孔体電極を模擬した緻密膜パターン電極を用いたSOFC空気極反応の解析

    雨澤浩史, 藤巻義信, 進藤勇佑, 水野敬太, 木村勇太, 中村崇司, 新田清文, 寺田靖子, 井口史匡, 湯上浩雄, 八代圭司, 川田達也

    第42回固体イオニクス討論会  2016.12.5 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 名古屋市  

  475. 固体電解質界面における整流特性の発現

    中村崇司, 雨澤浩史, Jurgen Janek

    第14回固体イオニクスセミナー  2018.9.2 

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    Language:Japanese   Presentation type:Poster presentation  

  476. Ionic rectification at interfaces of solid electrolytes Invited

    Takashi NAKAMURA, Koji AMEZAWA, Juergen JANEK

    28th Annual Meeting of MRS-Japan 2018  2018.12.18  MRS-J

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:Kitakyushu  

  477. 固体電解質リアクターにより合成した酸素欠損Li過剰系正極の電極特性

    中村崇司, 太田健斗, 木村勇太, 鶴田一樹, 為則雄祐, 雨澤浩史

    2019年電気化学秋季大会  2019.9.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:甲府  

  478. 固体電解質ヘテロ界面におけるイオン整流現象

    中村崇司, 本田美李, 木村勇太, 雨澤浩史

    第15回固体イオニクスセミナー  2019.9.1 

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    Language:Japanese   Presentation type:Poster presentation  

    Venue:大津  

  479. 特殊環境下での放射光オペランド技術の開発

    中村崇司, 木村勇太, 雨澤浩史

    平成29年度ダイナミックアライアンスG2グループ分科会  2017.7.3 

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    Presentation type:Oral presentation (general)  

    Venue:JAPAN 札幌  

  480. 酸素脱離によるリチウム過剰系正極材料Li<SUB>1.2</SUB>Mn<SUB>0.6</SUB>Ni<SUB>0.2</SUB>O<SUB>2</SUB>の電極特性変化

    太田健斗, Gao Hongze, 中村崇司, 木村勇太, 鶴田一樹, 為則雄祐, 雨澤浩史

    電気化学会第86回大会  2019.3.27 

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    Venue:京都  

  481. 酸素脱離によるリチウム過剰系正極材料 Li<SUB>1.2</SUB>Mn<SUB>0.6</SUB>Ni<SUB>0.2</SUB>O<SUB>2</SUB>の電子状態および結晶構造変化

    太田 健斗, 郜 洪澤, 中村 崇司, 木村 勇太, 雨澤 浩史

    2018年電気化学秋季大会  2018.9.25 

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    Venue:石川県金沢市  

  482. 酸素欠損がリチウム過剰系正極材料の電極特性に与える影響

    太田健斗, 中村崇司, 木村勇太, 鶴田一樹, 為則雄祐, 雨澤浩史

    第15回固体イオニクスセミナー  2019.9.1 

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    Venue:大津  

  483. 酸素不定比性に着目した機能性酸化物の電気化学的機能発現に関する研究

    中村 崇司

    電気化学会第84回大会  2017.3.25 

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    Presentation type:Oral presentation (invited, special)  

    Venue:JAPAN 東京都八王子市(首都大学東京 南大沢キャンパス)  

  484. 酸素イオン導電体-酸化物複合体における残留応力の研究

    桒原諒介, 中村崇司, 八代圭司, 井口史匡

    第44回固体イオニクス討論会  2018.12.5 

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    Venue:京都  

  485. 酸化物系正極材料における格子酸素安定性と酸素脱離

    中村 崇司, 候 雪妍, 木村 勇太, 為則 雄祐, 雨澤 浩史

    2021年 電気化学秋季大会  2021.9.8 

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  486. 酸化物イオン導電体-酸化物複合体における残留ひずみの研究

    桒原諒介, 八代圭司, 中村崇司, 井口史匡

    電気化学会第86回大会  2019.3.27 

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    Venue:京都  

  487. 酸化物イオン伝導性固体電解質/混合伝導体ヘテロ界面におけるイオン電流の整流現象

    中村崇司, 本田美李, 木村勇太, ürgen Janek, 雨澤浩史

    第45回固体イオニクス討論会  2019.11.26 

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    Venue:福岡  

  488. 酸化物イオン伝導体ヘテロ界面におけるイオン整流現象の原理解明

    本田美李, 中村崇司, 木村勇太, ürgen Janek, 雨澤浩史

    第32回東北若手の会  2019.12.15 

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    Venue:山形  

  489. 軟X線吸収分光を用いた固体酸化物形燃料電池材料のその場分析

    大池諒, 雨澤浩史, 為則雄祐, 八代圭司, 中村崇司, 川田達也

    第39回固体イオニクス討論会  2013.11.20 

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    Presentation type:Oral presentation (general)  

    Venue:熊本  

  490. 複合体化による機能性セラミックスの化学膨張抑制

    阿部智也, 中村崇司, 八代圭司, 井口史匡

    電気化学会第84回大会  2017.3.25 

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    Venue:JAPAN 東京都八王子市(首都大学東京 南大沢キャンパス)  

  491. 複合アニオン化合物YOFのイオン伝導特性

    本橋宏大, 木村勇太, 中村崇司, 桑原彰秀, 内本喜晴, 雨澤浩史

    第14回固体イオニクスセミナー  2018.9.2 

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  492. 複合アニオン化合物YOFにおけるイオン伝導特性

    本橋宏大, 中村崇司, 木村勇太, 桑原彰秀, 内本喜晴, 雨澤浩史

    2019年電気化学秋季大会  2019.9.5 

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    Venue:甲府  

  493. 緻密膜パターン電極によるLa<sub>0.6</sub>Sr<sub>0.4</sub>CoO<sub>3-δ</sub>/Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>1.95</sub>コンポジット空気極における反応機構の解明

    今泉貴明, 水野敬太, 中村崇司, 木村勇太, 新田清文, 関澤央輝, 井口史匡, 湯上浩雄, 八代圭司, 川田達也, 雨澤浩史

    第15回固体イオニクスセミナー  2019.9.1 

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    Venue:大津  

  494. 緻密膜パターン電極によるLa0.6Sr0.4CoO3-δ/Gd0.1Ce0.9O3-δコンポジット空気極の反応機構の解明

    今泉貴明, 水野敬太, 中村崇司, 木村勇太, 新田清文, 関澤央輝, 井口史匡, 湯上浩雄, 八代圭司, 川田達也, 雨澤浩史

    電気化学会第86回大会  2019.3.27 

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    Venue:京都  

  495. 異種固体電解質のヘテロ界面におけるイオン整流現象

    中村崇司, 雨澤浩史, Jurgen Janek

    第44回固体イオニクス討論会  2018.12.5 

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    Venue:京都  

  496. 特殊環境下での軟X線吸収・発光分光同時測定技術の開発

    中村崇司, 木村 勇太, 雨澤 浩史

    人・環境と物質をつなぐイノベーション創出ダイナミック・アライアンス  2016.8.5 

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    Venue:JAPAN 東京工業大学(田町キャンパス CIC)  

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Media Coverage 20

  1. 無機機能性材料の特性を向上させる新しい手法を開発 ─困難だったアニオン(陰イオン)の組成を電気化学で容易に制御─ Internet

    東北大学  ホームページ  プレスリリース・研究成果  2023.9

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  2. 充放電による蓄電池電極劣化の経時的進行を3次元でとらえる新技術を開発 ~全固体電池をはじめとした次世代型蓄電池の長寿命化に貢献~ Internet

    東北大学  プレスリリース・研究成果  2023.7

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    Author:Other 

  3. How transition metals destabilize high-energy-density li-ion batteries Internet

    Mining[DOT]COM  https://www.mining.com/how-transition-metals-destabilize-high-energy-density-li-ion-batteries/  2021.7

  4. 防止过热爆炸 研究找到制造安全电池关键所在 Internet

    大紀元  https://www.epochtimes.com/gb/21/7/20/n13100473.htm  2021.7

  5. Hold your breath for a better battery Internet

    PV magazine  https://www.pv-magazine.com/2021/07/19/hold-your-breath-for-a-better-battery/  2021.7

  6. Preventing Oxygen Release Leads to Safer High-Energy-Density Lithium-Ion Batteries Internet

    SciTechDaily  https://scitechdaily.com/preventing-oxygen-release-leads-to-safer-high-energy-density-lithium-ion-batteries/  2021.7

  7. Safer high-energy density batteries can be made by preventing oxygen release Internet

    ANI(South Asia's Leading Multimedia News Agency)  https://www.aninews.in/news/science/safer-high-energy-density-batteries-can-be-made-by-preventing-oxygen-release20210717191105/  2021.7

  8. How transition metals destabilize high-energy-density li-ion batteries Internet

    ANI(South Asia's Leading Multimedia News Agency)  https://www.aninews.in/news/science/preventing-oxygen-release-leads-to-safer-high-energy-density-batteries20210714234545/  2021.7

  9. La prevención de la liberación de oxígeno proporciona a las baterías de iones de litio una alta densidad de energía. Internet

    eseracingoe  https://www.eseracingoe.com/la-prevencion-de-la-liberacion-de-oxigeno-proporciona-a-las-baterias-de-iones-de-litio-una-alta-densidad-de-energia/  2021.7

  10. Preventing Oxygen Release Leads to Safer High-Energy-Density Batteries Internet

    AlphaGalileo  https://www.alphagalileo.org/en-gb/Item-Display/ItemId/210506?returnurl=https://www.alphagalileo.org/en-gb/Item-Display/ItemId/210506  2021.7

  11. Preventing oxygen release leads to safer high-energy-density batteries Internet

    Science Daily  https://www.sciencedaily.com/releases/2021/07/210713110848.htm  2021.7

  12. Preventing oxygen release leads to safer high-energy-density batteries Internet

    PHYS ORG  https://phys.org/news/2021-07-oxygen-safer-high-energy-density-batteries.html?utm_source=TrendMD&utm_medium=cpc&utm_campaign=Phys.org_TrendMD_1  2021.7

  13. Preventing oxygen release leads to safer high-energy-density batteries Internet

    EurekAlert (English, American Association for the Advancement of Science (AAAS))  https://www.eurekalert.org/pub_releases/2021-07/tu-por071221.php  2021.7

  14. Preventing Oxygen Release Leads to Safer High-Energy-Density Batteries Internet

    Mirage news  https://www.miragenews.com/preventing-oxygen-release-leads-to-safer-high-594085/  2021.7

  15. 東北大、蓄電池の異常発熱解明 安全性向上に指針 Internet

    日刊工業新聞(紙面・Web掲載)  トップ大学・産学連携記事詳細 https://www.nikkan.co.jp/articles/view/604679  2021.7

  16. 東北大など、リチウムイオン電池において異常発熱などを起こす原因を解明 Internet

    マイナビニュース  テクノロジー>エネルギー https://news.mynavi.jp/article/20210630-1912676/  2021.6

  17. さまざまな電池材料にも適用可能 東北大ら、酸化物蓄電材料の酸素脱離現象を解明 Internet

    EE Times Japan  先端技術 https://eetimes.itmedia.co.jp/ee/articles/2106/29/news026.html  2021.6

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  18. 電池材料の酸素脱離現象を解明 次世代型蓄電池への応用に期待(プレスリリース) Internet

    SPring-8  研究成果 プレスリリース http://www.spring8.or.jp/ja/news_publications/press_release/2021/210625/  2021.6

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    Author:Other 

  19. Lattice Oxygen Instability in Oxide-Based Intercalation Cathodes: A Case Study of Layered LiNi1/3Co1/3Mn1/3O2 Internet

    2021.6

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  20. Oxygen defect engineering for the Li-rich cathode material Li1.2Ni0.13Co0.13Mn0.54O2-δ Internet

    Network Joint Reseach Center for Materials and Devices  Research Highlights  2021.2

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    Author:Myself 

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