Comparison of the thermal stability of lithiated graphite in LiBOB EC/DEC and in LiPF6 EC/DEC

被引：93

作者：

Jiang, J ^{[1
]}

Dahn, JR

机构：

[1] Dalhousie Univ, Dept Chem, Halifax, NS B3H 3J5, Canada

[2] Dalhousie Univ, Dept Phys, Halifax, NS B3H 3J5, Canada

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2003年 / 6卷 / 09期

关键词：

D O I：

10.1149/1.1592911

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Accelerating rate calorimetry (ARC) has been used to compare the thermal stability of lithiated mesocarbon microbeads (MCMB) (Li0.81C6) in the presence of saturated lithium bis(oxalato) borate (LiBOB) in ethylene carbonate (EC)/diethyl carbonate (DEC) (about 0.8 M) and LiPF6 in EC/DEC (1.0 M). The exothermic reaction between lithiated MCMB and LiBOB EC/DEC electrolyte does not proceed strongly until about 170degreesC but it begins at about 80degreesC for lithiated MCMB in LiPF6 EC/DEC. We believe that LiBOB electrolytes offer significant advantages for cell abuse tolerance compared to LiPF6 electrolytes, at least as far as anode/electrolyte reactions are concerned. (C) 2003 The Electrochemical Society.

引用

页码：A180 / A182

页数：3

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