YAMAMOTO, Kentaro Program-Specific Assistant Professor
|Graduate School Department /Course /Field||Interdisciplinary Environment/Studies on Material Science/Material Functions and Correlations|
|Research areas||Material chemistry Electrochemistry, Solid state ionics, operando measurement|
|Keywords||Lithium ion battery, Post lithium ion battery, operando measurement|
|Themes||Electric storage devices such as lithium ion secondary battery are expected to be applied to electric vehicle power supplies and natural energy storage and are indispensable for building a society where people and nature coexist . In our laboratory (Prof. Uchimoto lab.), we study the reaction mechanism of the electrochemical device based on electrochemistry and inorganic chemistry combined with synchrotron radiation measurement and develop the novel materials. Our goal is dramatic performance improvement of electric storage devices.|
|Major publications||"Charge Compensation Mechanism of Lithium-excess Metal Oxides with Different Covalent and Ionic Characters revealed by operando Soft and Hard X-ray Absorption Spectroscopy", K. Yamamoto, Y. Zhou, N. Yabuuchi, K. Nakanishi, T. Yoshinari, T. Kobayashi, Y. Kobayashi, R. Yamamoto, A. Watanabe, Y. Orikasa, K. Tsuruta, J. Park, H. Ryung Byon, Y. Tamenori, T. Ohta, Y. Uchimoto, Chem. Mater., 2020, 32, 1, 139 – 147
"Morphological Effect on Reaction Distribution Influenced by Binder Materials in Composite Electrodes for Sheet-type All-Solid-State Lithium-Ion Batteries with Sulfide-based Solid Electrolyte", K. Chen, S. Shinjo, A. Sakuda, K. Yamamoto, T. Uchiyama, K. Kuratani, T. Takeuchi, Y. Orikasa, A. Hayashi, M. Tatsumisago, Y. Kimura, T. Nakamura, K. Amezawa, Y. Uchimoto, J. Phys. Chem. C, 2019, 123, 6, 3292 – 3298
"High rate performance of dual substituted LiFePO4 based on controlling metastable intermediate phase", T. Yoshinari, K. Yamamoto, M. Nishijima, K. Fukuda, A. Kuwabara, I. Tanaka, K. Maeda, H. Kageyama, Y. Orikasa, and Y. Uchimoto, ACS Appl. Energy Mater., 2018, 1, 6736 – 6740
"Role of Coordination Structure of Magnesium Ions on Charge and Discharge Behavior of Magnesium Alloy Electrode", M. Hattori, K. Yamamoto, M. Matsui, K. Nakanishi, T. Mandai, A. Choudhary, Y. Tateyama, K. Sodeyama, T. Uchiyama, Y. Orikasa, Y. Tamenori, T. Takeguchi, K. Kanamura, Y. Uchimoto
J. Phys. Chem. C, 2018, 122, 44, 25204 – 25210
“Improved Cyclic Performance of Lithium-Ion Batteries: An Investigation of Cathode/Electrolyte Interface via in-situ Total-Reflection Fluorescence X-ray Absorption Spectroscopy”, K. Yamamoto, T. Minato, S. Mori, D. Takamatsu, Y. Orikasa, H. Tanida, K. Nakanishi, H. Murayama, T. Masese, T. Mori, H. Arai, Y. Koyama, Z. Ogumi, Y. Uchimoto, J. Phys. Chem. C 2014, 118, 9538–9543.
“Stabilization of the Electronic Structure at the Cathode/Electrolyte Interface via MgO Ultra-thin Layer during Lithium-ions Insertion/Extraction”, K. Yamamoto, Y. Orikasa, D. Takamatsu, Y. Koyama, S. Mori, T. Masese, T. Mori, T. Minato, H. Tanida, T. Uruga, Z. Ogumi, Y. Uchimoto, Electrochemistry 2014, 82, 891–896.
“Origin of Surface Coating Effect for MgO on LiCoO2 to Improve the Interfacial Reaction between Electrode and Electrolyte”, Y. Orikasa, D. Takamatsu, K. Yamamoto, Y. Koyama, S. Mori, T. Masese, T. Mori, T. Minato, H. Tanida, T. Uruga, Z. Ogumi, Y. Uchimoto , Adv. Mater. Interfaces 2014, 1, 1400195–8.
|Professional societies/Research and synergic activities||The Electrochemical Society|
|Background||2010 Graduated, Applied Chemistry, Tohoku University, Japan.
2012 Master of Engineering, Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, Japan.
2015 Doctor of Human and Environmental Studies, Department of Interdisciplinary Environment, Graduate School of Human and Environmental Studies, Kyoto University, Japan.