Tri-(4-methoxythphenyl) phosphate: A new electrolyte additive with both fire-retardancy and overcharge protection for Li-ion batteries

被引：55

作者：

Feng, J. K. ^{[1
]}

Cao, Y. L. ^{[1
]}

Ai, X. P. ^{[1
]}

Yang, H. X. ^{[1
]}

机构：

[1] Wuhan Univ, Dept Chem & Mol Sci, Wuhan 430072, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2008年 / 53卷 / 28期

关键词：

tri-(4-methoxythphenyl) phosphate; electrolyte additive; fire retardant; overcharge protection; lithium-ion batteries;

D O I：

10.1016/j.electacta.2008.05.024

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel compound, tri-(4-methoxythphenyl) phosphate, was synthesized and investigated as a safety electrolyte additive for lithium-ion batteries. It was found that this additive could lower the flammability of the electrolyte, and thereby enhance the thermal stability of the Li-ion battery. Moreover, this molecule can also be polymerized at 4.35 V (vs. Li/Li+) to form a conducting polymer, which can protect the batteries from voltage runaway at overcharge by internal bypassing the overcharging current in the batteries. Thus, it is possible to use this electrolyte additive to provide both overcharge protection and flame retardancy for lithium-ion batteries without much influence on the battery performance. (c) 2008 Published by Elsevier Ltd.

引用

页码：8265 / 8268

页数：4