Li-ion battery shut-off at high temperature caused by polymer phase separation in responsive electrolytes

被引：56

作者：

Kelly, Jesse C. ^{[1
]}

Degrood, Nicholas L. ^{[1
]}

Roberts, Mark E. ^{[1
]}

机构：

[1] Clemson Univ, Dept Chem & Biomol Engn, Clemson, SC 29634 USA

来源：

CHEMICAL COMMUNICATIONS | 2015年 / 51卷 / 25期

基金：

美国国家科学基金会;

关键词：

LIQUIDS; TRANSITION; TRIBLOCK; GEL;

D O I：

10.1039/c4cc10282g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

For the purpose of realizing inherently safe high-power Li-ion batteries, a model Li4Ti5O12/LiFePO4 rechargeable battery is investigated using the thermally responsive polymer, poly(benzyl methacrylate), in an ionic liquid. At high temperature, battery operation is inhibited as a result of increased internal resistance caused by polymer and ionic liquid phase separation. Li-ion concentration is shown to affect the phase transition temperature and the extent to which batteries are deactivated.

引用

页码：5448 / 5451

页数：4

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