The need to reconsider traditional free volume theory for polymer electrolytes

被引：28

作者：

Bendler, JT

Fontanella, JJ ^{[1
]}

Shlesinger, MF

Wintersgill, MC

机构：

[1] USN Acad, Dept Phys, Annapolis, MD 21402 USA

[2] Off Naval Res, Div Phys Sci, Arlington, VA 22217 USA

来源：

ELECTROCHIMICA ACTA | 2003年 / 48卷 / 14-16期

关键词：

electrical conductivity; complex impedance; lithium electrolytes; high pressure;

D O I：

10.1016/S0013-4686(03)00213-5

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Pressure-temperature-volume (PVT) data have been obtained for poly(propylene glycol) of molecular weight 1025 containing LiCF3SO3 in the mole ratio 20:1. The PVT data were used to calculate the specific volumes, V/V-P=0,V-T=296 K, associated with the pressures and temperatures for previously published variable temperature, high-pressure electrical conductivity data. It is found that the electrical conductivity depends strongly on temperature at a constant volume. Consequently, traditional free volume theory is not consistent with the data. Finally, it is shown that the features of the electrical conductivity data can be accounted for by a recently developed generalized Vogel theory. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：2267 / 2272

页数：6

共 31 条

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