The effect of plasticizer on the microstructural and electrochemical properties of a (PEO)nLiAl(SO3Cl)4 system

被引：39

作者：

Kovac, M ^{[1
]}

Gaberscek, M ^{[1
]}

Grdadolnik, J ^{[1
]}

机构：

[1] Natl Inst Chem, SI-1000 Ljubljana, Slovenia

来源：

ELECTROCHIMICA ACTA | 1998年 / 44卷 / 05期

关键词：

polyethylene oxide; oxohalide salts; plasticisers; crystallinity; conductivity; impedance spectroscopy; vibrational spectroscopy;

D O I：

10.1016/S0013-4686(98)00184-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Preparation and microstructural and electrochemical characterization of (PEO)(n)LiAl(SO3Cl)(4) (n = 2-12) polymer electrolytes containing a mixture of plasticisers, i.e. propylene carbonate (PC) and 1,2-dimethoxyethane (DME), is presented. The effect of plasticizer mixture on polymer crystallinity and its electrical conductivity at various temperatures is studied using X-ray powder diffractometer analysis, differential scanning calorimetry, size exclusion chromatography, and Raman and FTIR spectroscopy in combination with impedance spectroscopy. The dependence of the glass transition temperature, crystallinity and conductivity of the (PEO/PC/DME)(n)LiAl(SO3Cl)(4) polymer electrolytes on salt concentration is measured and discussed with reference to the literature on similar systems. Finally, a quantitative analysis using the Vogel-Tamman-Fulcher equation of a typical conductivity/temperature curve for the amorphous polymer electrolytes under consideration is presented. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：863 / 870

页数：8

共 18 条

[1] LI+-CONDUCTIVE SOLID POLYMER ELECTROLYTES WITH LIQUID-LIKE CONDUCTIVITY [J].