Uniaxial stress effects in poly(ethylene oxide)-LiI polymer electrolyte film -: A 7Li nuclear magnetic resonance study

被引：57

作者：

Chung, SH ^{[1
]}

Wang, Y

Greenbaum, SG

Golodnitsky, D

Peled, E

机构：

[1] CUNY Hunter Coll, Dept Phys, New York, NY 10021 USA

[2] Tel Aviv Univ, Sch Chem, IL-69978 Tel Aviv, Israel

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 1999年 / 2卷 / 11期

关键词：

D O I：

10.1149/1.1390901

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nuclear magnetic resonance (NMR) measurements have been used as a microscopic probe of the static and dynamic behavior of unstretched and stretched films of poly(ethylene oxide)-LiI complexes. The stretched sample was previously reported to exhibit a fivefold increase in the ionic conductivity at ambient temperatures. The NMR data indicate that the origin of this enhancement is likely due to changes in the short and long-range structure which promote ion transport through the helical poly(ethylene oxide) structure. Strong support for this comes from the unexpected observation of an anticorrelation between polymer segmental motion and ionic conductivity enhancement. (C) 1999 The Electrochemical Society. S1099-0062(99)05-101-9. All rights reserved.

引用

页码：553 / 555

页数：3