期刊
ADVANCED SCIENCE
卷 4, 期 2, 页码 -出版社
WILEY
DOI: 10.1002/advs.201600377
关键词
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资金
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA09010105]
- Shandong Provincial Natural Science Foundation, China [ZR2015QZ01]
- 135 Projects Fund of CAS- QIBEBT Director Innovation Foundation
Nowadays it is extremely urgent to seek high performance solid polymer electrolyte that possesses both interfacial stability toward lithium/graphitic anodes and high voltage cathodes for high energy density solid state batteries. Inspired by the positive interfacial effect of vinylene carbonate additive on solid electrolyte interface, a novel poly (vinylene carbonate) based solid polymer electrolyte is presented via a facile in situ polymerization process in this paper. It is manifested that poly (vinylene carbonate) based solid polymer electrolyte possess a superior electrochemical stability window up to 4.5 V versus Li/Li+ and considerable ionic conductivity of 9.82 x 10(-5) S cm(-1) at 50 degrees C. Moreover, it is demonstrated that high voltage LiCoO2/Libatteries using this solid polymer electrolyte display stable charge/discharge profiles, considerable rate capability, excellent cycling performance, and decent safety characteristic. It is believed that poly (vinylene carbonate) based electrolyte can be a very promising solid polymer electrolyte candidate for high energy density lithium batteries.
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