2013 Fiscal Year Final Research Report
Intrinsic mechanism of electronic/ionic conduction at the electrolyte/electrode by epitaxial films
| Project/Area Number |
24750005
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical chemistry
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| Research Institution | Tohoku University |
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Principal Investigator |
KUMATANI Akichika 東北大学, 大学院環境科学研究科, 産官学連携研究員 (50568433)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 物理化学 / エピタキシャル薄膜 / 薄膜電池 / リチウムイオン二次電池 / イオン伝導 / 電気化学 / 固体イオニクス / リチウムイオン電池 |
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| Research Abstract |
The studies on the intrinsic electron/ion transport at the electrode/electrolyte in the lithium-ion batteries were carried out by using epitaxial thin films. Epitaxial growth was an ideal fabrication technique, which allows us to control the crystal orientation and grain boundaries precisely, for revealing those transport. It is unveiled that one of bottlenecks in the practical electronic and ionic transport was grain boundaries by elucidation of electrical / electrochemical measurements for each transport in the epitaxial films independently. The information obtained in this study will become an important feedback for electrodes and electrolytes, leading the creation of high performance lithium-ion batteries.
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[Presentation] Interface resistance at the single grain boundary of LiCoO2 epitaxial thin films2012
Author(s)
A. Kumatani, T. Ohsawa, R. Shimizu, T. Suzuki, Y. Takagi, S. Shiraki, H. Oki, H. Moriwake, Y. Ikuhara, T. Hitosugi
Organizer
13th Asian Conference on Solid State Ionics
Place of Presentation
Sendai, Japan
Year and Date
20120718-20
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