期刊
ELECTROCHIMICA ACTA
卷 92, 期 -, 页码 132-138出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2013.01.026
关键词
Polymer electrolytes; Lithium salts; High temperature; Lithium ion batteries
资金
- National Basic Research Program of China [2011CB935700]
- Instrument Developing Project of the Chinese Academy of Sciences [YZ201137]
- Key Research Program of the Chinese Academy of Sciences [KGZD-EW-202-2]
A novel polymeric lithium tartaric acid borate (PLTB) was synthesized via an one-step reaction in aqueous solution. The polymer electrolyte of PLTB@PVDF-HFP (poly(vinylidene fluoride-co-hexafluoropropene)) was developed by a doctor-blading followed by a soaking process in propylene carbonate (PC). It was manifested that the PC swollen PLTB@PVDF-HFP exhibited excellent electrochemical stability and compatibility with lithium metal electrode, high ionic conductivity and high lithium ion transference number at an operating temperature of 80 degrees C. The cells using the PC swollen PLTB@PVDF-HFP as electrolyte showed stable charge/discharge profiles, preferable rate capability and satisfactory cycling performance at high temperature. These superior performances of PC swollen PLTB@PVDF-HFP could endow this class of polymer electrolyte a very promising application in lithium batteries operating at relatively high temperature. (C) 2013 Elsevier Ltd. All rights reserved.
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