文献类型：期刊文献

英文题名：Effect of Fluoroethylene Carbonate Additive on Low Temperature Performance of Li-Ion Batteries

作者：Liu, Bingxiao[1];Li, Bing[1];Guan, Shiyou[1]

机构：[1]E China Univ Sci & Technol, Shanghai 200237, Peoples R China

年份：2012

卷号：15

期号：6

起止页码：A77

外文期刊名：ELECTROCHEMICAL AND SOLID STATE LETTERS

收录：;EI(收录号：20121914996078);WOS:【SCI-EXPANDED(收录号:WOS:000306716000002)】；

语种：英文

外文关键词：Graphite electrodes - Charge transfer - Lithium compounds - X ray photoelectron spectroscopy - Electrolytes - Temperature

摘要：The effects of Fluoroethylene carbonate (FEC) on the low temperature performance of Li-ion batteries were evaluated. By addition of 2 v% FEC into a commercial ternary electrolyte, the initial lithium intercalation capacity (graphite/Li model cell) was remarkably improved by approximately 50% and the voltage plateau of the cell was lowered by about 0.2 V at -20 degrees C. This is maybe attributed to a reduced charge transfer resistance and a lowered SET film resistance with a richer LiF phase formed on the graphite electrode by Tafel polarization, AC impedance and X-ray photoelectron spectroscopy (XPS) analysis. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.027206esl] All rights reserved.