A novel comb-like copolymer based polymer electrolyte for Li batteries

被引：28

作者：

Wang, MK ^{[1
]}

Qi, L ^{[1
]}

Zhao, F ^{[1
]}

Dong, SJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2005年 / 139卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

ionic conductivity; polymer electrolyte; impedance spectroscopy;

D O I：

10.1016/j.jpowsour.2004.06.060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polymer electrolytes, which comprise a novel comb-like copolymer and an alkali metal salt, were successfully prepared and discussed using differential scanning calorimeter, Fourier transform infrared spectroscopy, nuclear magnetic resonance, atom force microscopy, and electrochemical impedance spectroscopy. The novel comb-like copolymer is capable of forming donor:acceptor type bonds with alkali metal ions. The complex system with a mixture of fumed silica or propylene carbonate was studied also. Such electrolytes possess satisfactory ambient temperature ionic conductivity (up to 10(-4) S cm(-1)) and good mechanical strength. The Vogel-Tamman-Fulcher-like behavior of conductivity implies the coupling of the charge carriers with the segmental motion of the polymer chains. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：223 / 229

页数：7

共 28 条

[1] DIRECTIONS IN SECONDARY LITHIUM BATTERY RESEARCH-AND-DEVELOPMENT [J].