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All solid-state lithium polymer secondary batteries using spinel Li4/3Ti5/3O4 as an active material |
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| Authors: | Chie Koga Shinta Wada |
| Affiliation: | a Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama Meguro-ku, Tokyo 152-8552, Japan b R&D Division, World Intec Co., Ltd., 6F Kyobashi K-1 bldg., 2-7-12 Yaesu, Chuo-ku, Tokyo 104-0028, Japan c Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya city, Aichi 466-8555, Japan |
| Abstract: | Present paper describes electrochemical performance of the all solid-state lithium polymer battery (LBP) using spinel-type Li4/3Ti5/3O4 which has been known as the potential candidate of anode materials.The assembled LPB with Li|solid polymer electrolyte(SPE)|Li4/3Ti5/3O4 construction showed stable charge-discharge cycles more than 300 times at 1 C condition. On the other hand, strong charge-discharge rate dependence for the specific capacity and initial capacity loss was indicated. Such a poor rate performance stemmed from low diffusivity of Li+ ion in the by-products produced by the decomposition of SPE components at the SPE|Li4/3Ti5/3O4 interface. |
| Keywords: | Lithium polymer battery (LPB) Spinel Li4/3Ti5/3O4 Solid-state polymer electrolyte (SPE) |
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