| Project/Area Number |
16K14088
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
Hitosugi Taro 東京工業大学, 物質理工学院, 教授 (90372416)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 固体電解質 / 電極 / 電気化学 / リチウム / 電圧印加 / 全固体電池 / 空間電荷層 / 界面抵抗 / リチウムイオン電池 / 無機工業化学 / 先端機能デバイス / セラミックス |
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| Outline of Final Research Achievements |
All-solid-state lithium batteries are expected as next-generation batteries due to the safety, high energy density, and high power. However, the high interface resistance at the solid electrolyte and positive electrode interfaces hinder the application of all-solid-state lithium battery in the market. Therefore, it is necessary to clarify the origin of the high interface resistance and the distribution of lithium ions near the interface.
Therefore, in this study, we investigated the lithium concentration distribution near the interface using Rutherford backscattering, nuclear reaction analysis, and neutron reflectivity measurement. We succeeded in the quantitative observation of the voltage-driven redistribution of lithium ions in solid electrolytes.
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