Researcher Database

（Last updated : 2023-12-07 10:55:31）

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ORIKASA YUKI

Department / Course College of Life Sciences Department of Applied Chemistry

Title / Position Professor

Other Affiliations
1.	Graduate School of Life Sciences
2.	Research Organization of Science and Technology Earth & Space Exploration Center

Academic background
1.	～2010/03	Doctoral Program (2nd Semester) │ Department of Interdisciplinary Environment │ Graduate School of Human and Environmental Studies │ Kyoto University │ Completed Doctor of Human and Environmental Studies
2.	～2005/03	Faculty of Integrated Human Studies │ Kyoto University │ Graduated
3.	～2007/03	Doctoral Program (1st Semester) │ Department of Interdisciplinary Environment │ Graduate School of Human and Environmental Studies │ Kyoto University │ Completed

Business career
1.	2022/04/01 ～	Fellow │ │ Ritsumeikan Advanced Research Academy (RARA)

Research activities
1.		Materials Research Society
2.		The Electrochemical Society
3.		The Solid State Ionics Society of Japan
4.		The Electrochemical Society of Japan
5.		The Electrochemical Society of Japan
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Subject of research
1.	Reaction Mechanism of Lithium-ion Battery and Improvement of Electrode Material Based on Solid Electrochemistry

Research summary
Reaction analysis of lithium-ion secondary cells and creation of high-performance electric and chemical energy conversion system through material design The forming of basic theory for elucidation of electrochemistry device reaction mechanism and material design guideline based on solid state chemistry, electrochemistry, and measurement science is being conducted. Taking up electrochemical devices, such as Lithium-ion secondary cells, solid oxide fuel cells, solid polymer fuel cells, etc., material design will be conducted by understanding the reaction taking place, for the purpose of achieving high-performance. In electrochemical devices, there is an electrode and electrolyte boundary surface structure of the reaction field, the phase change of active materials, and the macro reaction within the electrode, and new, in-situ measurement methods to match these will be developed, to elucidate the reaction mechanism in different scales of time and space. In addition, material design of new storage devices will be taken up, by the integration of these information as a string of research.

Research summary(Photo/Image)

Present specialized field
Basic chemistry, Inorganic chemistry, Inorganic industrial materials (Keyword：Electrochemistry, Solid chemistry, Battery, Fuel cells, Lithium ion battery,Synchrotron radiation)

Books
1.	2013	Nanoscale Technology for Advanced Lithium Batteries │ ,pp.pp.111-122 (Co-authored)

Papers
1.	2022/07/22	Pressure dependence on the three-dimensional structure of a composite electrode in an all-solid-state battery │ Journal of Materials Chemistry A │ 10,pp.16602-16609 (Co-authored)
2.	2022/05/25	Femtosecond X-ray Laser Reveals Intact Sea–Island Structures of Metastable Solid-State Electrolytes for Batteries │ Nano Letters │ 22,pp.4603-4607 (Co-authored)
3.	2022/04/14	State of the Active Site in La1–xSrxCoO3−δ Under Oxygen Evolution Reaction Investigated by Total-Reflection Fluorescence X-Ray Absorption Spectroscopy │ ACS Applied Energy Materials │ 5,pp.4108-4116 (Co-authored)
4.	2022/02/02	Multiscale and hierarchical reaction mechanism in a lithium-ion battery │ Chemical Physics Reviews │ 3,pp.11305 (Co-authored)
5.	2021/12/28	Magnetic Compton Scattering Study of Li-Rich Battery Materials │ Condensed Matter │ 7,pp.4 (Co-authored)
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Academic conference presentation
1.	2021/12/16	Direct observation of silver dendrite formation in glass electrolyte using X-ray tomography (Pacifichem 2021)
2.	2021/12/16	Electrochemical Behavior in Calcium Aqueous Electrolyte of vegetables (Pacifichem 2021)
3.	2021/12/16	Fluoride-ion Conduction of La-Sr-F-S Mixed Anion Compound (Pacifichem 2021)
4.	2021/12/16	Lithium intercalation analysis of photo-charging lithium-ion battery (Pacifichem 2021)
5.	2021/12/16	Mixed-Anion Doping on Chloride-based Lithium-ion Solid Electrolyte (Pacifichem 2021)
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Winning science prize
1.	2017/03	International Battery Association IBA Early Career Award

Grants-in-Aid for Scientific Research -KAKENHI-
1.	2019/06 ～ 2021/03	Development of Super-ionic Conductor using Fluoride Sulfide │ Grant-in-Aid for Challenging Research (Exploratory)
2.	2015/04 ～ 2018/03	Electrode reaction mechanism in lithium-ion batteries toward operando lithium concentration quantitation analysis │ Grant-in-Aid for Young Scientists (B)
3.	2015/04 ～ 2018/03	Development of Magnesium Rechargeable Battery Based on Electrode/electrolyte Interface Reaction Analysis │ Grant-in-Aid for Young Scientists (A)
4.	2013/04 ～ 2015/03	Improvement of solid oxide fuel cells based on reaction mechanism analysis in solid/gas phase interface │ Grant-in-Aid for Young Scientists (B)
5.	2013/04 ～ 2017/03	Hierarchical Spatiotemporal Analyses of Nonequilibrium Reactions and the Design of Batteries │ Grant-in-Aid for Scientific Research (A)
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