Graduate School Department /Course /Field Interdisciplinary Environment/Studies on Material Science/Material Functions and Correlations
Undergraduate School
Other Affiliation
Email yamamoto.kentaro.4e(at mark)
Personal Page Website

Message to the prospective students

To prospective students who hope to join My laboratory.
Have you ever thought that batteries of smartphones and laptop computers you normally use need to last longer, or if it is better if the distance traveled by electric cars is longer? In our laboratory (Prof. Uchimoto lab.), we are researching to improve the performance of batteries used in these devices. Batteries are composed of a wide range of materials such as inorganic materials, organic materials and polymer materials, so we can acquire various knowledge including electrochemistry and inorganic chemistry as you proceed your research. We also use synchrotron measurements to elucidate the phenomena such as how materials in the battery behave during charging/discharging reactions, so you will also acquire knowledge about measurement methods. If you would like to develop a new battery material, want to clarify the phenomena ocurring in the battery, and have a willingness to do something useful for the world, let's do research together.
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
Teaching Areas
  • Undergraduate courses
  • Graduate courses (Master's program)
  • Graduate courses (Doctor's program)
  • Undergraduate courses open to all departments
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.

Send message to Program-Specific Assistant Professor YAMAMOTO, Kentaro by mail