Processing and microstructural characterization of structure controlled battery materials
| Project/Area Number |
26420693
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Japan Fine Ceramics Center |
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Principal Investigator |
Ikuhara Yumi 一般財団法人ファインセラミックスセンター, その他部局等, 主任研究員 (80450849)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | リチウムイオン電池 / 表面ナノ構造 / 正極 / 構造欠陥 / 遷移金属酸化物 / 配向薄膜 / 正極膜 / 蓄電池材料 / リチウムイオン二次電池 / 透過型電子顕微鏡 / 微細構造 / 結晶構造解析 / 複合錯体 / リチウムイオン |
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| Outline of Final Research Achievements |
Structure controlled cathodic thin films for lithium ion secondary batteries were successfully fabricated from precursor solutions. Direct observation of atom columns of all elements of the prepared battery materials can be achieved by scanning transmission electron microscopy using annular bright-field detectors. It is clarified that microstructural deformation influenced the electrochemical property. In particular, the surface deformation caused by antisite defects and oxygen loss appears to be a major contributor to the capacity fading when LiCoPO4 is used as the cathode material in secondary Li-ion batteries.
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Report
(4 results)
Research Products
(15 results)
