In-situ neutron and X-ray scattering investigations for lithium-ion battery materials
Project/Area Number |
15K06483
|
Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Structural/Functional materials
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Research Institution | Kyoto University |
Principal Investigator |
MORI KAZUHIRO 京都大学, 原子炉実験所, 准教授 (40362412)
|
Project Period (FY) |
2015-04-01 – 2018-03-31
|
Project Status |
Completed (Fiscal Year 2017)
|
Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
|
Keywords | 中性子 / 放射光X線 / 電池材料 / イオン伝導体 / 中性子散乱 / 放射光X線散乱 |
Outline of Final Research Achievements |
The structural and dynamical properties of all-solid-state lithium-ion batteries, particularly solid electrolyte materials, were studied using neutron and synchrotron X-ray scattering, or quantum beams. We developed a cell for measuring neutron diffraction data of the Li7P3S11 solid electrolyte under an applied voltage (or in-situ neutron diffraction data). It was found that no structural change occurs under the applied voltage. The conduction pathways of Li ions in the Li2S-GeS2 glasses and Li10GeP2S12 solid electrolyte were visualized using the technique based on the bond valence sum approach. Furthermore, we directly observed the fast Li-ion diffusion in the Li7P3S11 solid electrolyte using quasielastic neutron scattering.
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Report
(4 results)
Research Products
(25 results)