Nonflammable Electrolytes for Lithium-Ion Batteries Containing Dimethyl Methylphosphonate

被引：64

作者：

Dalavi, Swapnil ^{[1
]}

Xu, Mengqing ^{[1
]}

Ravdel, Boris ^{[2
]}

Zhou, Liu ^{[1
]}

Lucht, Brett L. ^{[1
]}

机构：

[1] Univ Rhode Isl, Dept Chem, Kingston, RI 02881 USA

[2] Lithion Inc, Pawcatuck, CT 06379 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2010年 / 157卷 / 10期

关键词：

FLUORINATED ALKYL PHOSPHATES; LIPF6-BASED ELECTROLYTES; FLAME RETARDANTS; PERFORMANCE; GRAPHITE; ELECTRODES; SOLVENT;

D O I：

10.1149/1.3473828

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel nonflammable electrolyte for lithium-ion batteries has been developed. The optimized electrolyte is composed of LiPF6 in a mixture of carbonate solvents with added dimethyl methylphosphonate as a flame retarding cosolvent and lithium bis(oxalatoborate) as an anode film forming additive. Conductivity, thermal stability, electrochemical stability, self extinguishing times, electrochemical cycling, and ex situ surface analysis of the cycled electrodes are reported. This novel electrolyte has a comparable cycling efficiency to the current state-of-the-art electrolytes for lithium-ion batteries but is nonflammable. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3473828] All rights reserved.

引用

收藏

页码：A1113 / A1120

页数：8

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