2010 Fiscal Year Final Research Report
Microstructure and Ionic Conductivity of Electrode/Electrolyte Interfaces in All Solid-State Lithium Secondary Batteries
| Project/Area Number |
21686066
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Structural/Functional materials
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| Research Institution | Kyoto University |
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Principal Investigator |
KISHIDA Kyosuke Kyoto University, 工学研究科, 准教授 (20354178)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 全固体リチウム二次電池 / 固体 / 固体ヘテロ界面 / 透過電子顕微鏡法 / 界面物性 / 固体イオニクス / 格子欠陥 |
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| Research Abstract |
Microstructure and electrochemical properties of various lithium lanthanum titanate (LLT)/LiCoO_2 assemblies were investigated in order to establish some ways to improve battery performance of all solid-state lithium secondary batteries by controlling the interface microstructure. We have revealed that the battery performance can be drastically improved by introducing very thin amorphous layers at the interface and also by controlling the geometrical configuration of the layered structure of LiCoO_2 through the control of the surface orientation of the crystalline electrolytes.
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