电解质
碳酸乙烯酯
石墨
碳酸丙烯酯
锂(药物)
电极
电化学
无机化学
丙烷
插层(化学)
电池(电)
材料科学
锂离子电池
分解
锂电池
化学工程
化学
离子
有机化学
复合材料
离子键合
量子力学
功率(物理)
物理化学
内分泌学
工程类
物理
医学
作者
Gumjae Park,Hiroyoshi Nakamura,Yunsung Lee,Masaki Yoshio
标识
DOI:10.1016/j.jpowsour.2008.09.088
摘要
1,3-Propane sultone (PS) additive for graphite electrodes was studied for propylene carbonate (PC) and ethylene carbonate (EC)-based electrolytes in lithium batteries. Decomposition of solvents with graphite electrodes could be remarkably suppressed by addition of the PS additive in the PC-based electrolyte, leading to improvement of electrochemical performances of the cells. The 1,3-propane sultone additive showed very interesting properties for the graphite electrode. It is predicted to give a solid electrolyte interphase (SEI) on the surface of the graphite prior to solvent decomposition and bring about effects that not only suppress lithium deposition on the graphite electrode surface, but also accelerate lithium intercalation, leading to formation of LiC6 onto graphite electrode.
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