Ionic conductivity and electrochemical stability of poly[oligo(ethylene glycol)oxalate]-lithium salt complexes

被引：48

作者：

Xu, W ^{[1
]}

Belieres, JP ^{[1
]}

Angell, CA ^{[1
]}

机构：

[1] Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA

来源：

CHEMISTRY OF MATERIALS | 2001年 / 13卷 / 02期

关键词：

D O I：

10.1021/cm000694a

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：

A new series of highly conducting polymer electrolytes based on poly[oligo(ethylene glycol)oxalate], P(EG(n)O) where n represents the number of repeating ethyleneoxy unit, has been prepared. The dielectric constant of the polymer host is higher than that of the pure poly(ethylene oxide) due to the existence of the two carbonyl groups in the repeating unit. A maximum conductivity of 5.9 x 10(-5) S cm(-1) at 25 degreesC was obtained for the complex of LiTFSI and P(EG(23)O) with a molar salt concentration of [Li+]/[EO] = 1:16. The complexes also show good electrochemical stability up to 4.4 V versus Li+/Li.

引用

页码：575 / 580

页数：6

共 22 条

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