Name Research topic
Associate Professor Yuki Orikasa
Assistant Professor Takeshi Shimizu
PhD Students Nur Chamidah Lithium-ion battery
Graduate Students Yuki Omote Lithium-ion battery
Graduate Students Naoki Takada Hydrogen energy
Graduate Students Shintaro Tachibana Future battery
Graduate Students Mayu Morimoto Lithium-ion battery
Graduate Students Iori Takashima Multivalent-ion battery
Graduate Students Tomoki Tsukamoto Future battery
Undergraduate Student Ryogo Ohashi
Undergraduate Student Naoto Ono
Undergraduate Student Soshi Kondo
Undergraduate Student Yusuke Sakurai
Undergraduate Student Yuya Sakka
Undergraduate Student Narumi Sato
Undergraduate Student Misaki Toshii
Undergraduate Student Ryo Muraoka
Undergraduate Student Ayako Murakami
Undergraduate Student Chikayuki Yanagawa
Undergraduate Student Mariya Yamagishi
Undergraduate Student Misaki Yamamura
Staff Keiko Ushio Ceramics
Staff Miho Muramoto Synchrotron

Summary of our research

In order to determine the rate-determining reactions achieve higher performance in electrochemical devices such as lithium ion batteries and fuel cells, it is important to understand reaction hierarchies over wide temporal and spatial ranges (from the nanometer to the centimeter scale) that proceed sequentially within the device. Research and development of new advanced analysis technologies to enable operando observation during electrochemical reactions is necessary to understand the structure of these hierarchies. In this study, we established an operando measurement technique that enables analysis of the electrode/electrolyte interface of the reaction site, phase transitions of active materials, and macro reactions within real electrodes over various spatial and temporal scales.  We also provided fundamental knowledge of the dynamic behavior of the lithium ion battery. This analytical technique is a dramatic step forward in that it pioneers a new way of performing kinetic analysis by introducing space and time axes for reaction analyses. It is also applicable to reaction analysis of various types of electrochemical devices. Moreover, we successfully designed and developed materials for innovative batteries by integrating information obtained using this technique.

Yuki ORIKASA Associate Professor



2010          PhD in Human and Environmental Studies

Kyoto University, Japan

Supervised by Prof. Yoshiharu Uchimoto

Due for submission March 2010

Thesis Title: Material Design for Mixed Conducting Perovskite Type Oxide Cathodes of High Temperature Electrochemical Devices

2009          Visitng Student, Electrochemical Energy Lab,

Massachusetts Institute of Technology

2007          M.A., Department of Interdisciplinary Environment, Graduate School of Human and Environmental Studies, Kyoto University, Japan

2005          B.A., Faculty of Integrated Human Studies, Kyoto University, Japan


2016-               Associate Professor, Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University

2011-2016           Assistant Professor, Graduate School of Human and Environmental Studies, Kyoto University, Japan

2010-2011           Assistant Professor, Office of Society-Academia Collaboration for Innovation, Kyoto University, Japan

2008-2010           Research Fellow, Japan Society for the Promotion of Science