Lithium environment in PEO-LiClO4 polymer electrolyte

被引：67

作者：

Mao, G

Saboungi, ML

Price, DL

Badyal, YS

Fischer, HE

机构：

[1] Argonne Natl Lab, Argonne, IL 60439 USA

[2] Univ Orleans, Ctr Rech Mat Divisee, CRMD, CNRS,UMR 6619, F-45071 Orleans 2, France

[3] Inst Max Von Laue Paul Langevin, F-38041 Grenoble, France

来源：

EUROPHYSICS LETTERS | 2001年 / 54卷 / 03期

关键词：

D O I：

10.1209/epl/i2001-00249-7

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The average local structure around Li cations in a polymer electrolyte, P(EO)(7.5)LiClO4, has been determined by neutron diffraction with Li isotope substitution. In this environment, the Li ions are predominantly coordinated by 4 similar to 5 ether oxygens. The intermediate-range order is enhanced relative to the pure polymer by the expansion of the network on the addition of the salt. The excess volume introduced must play a key role in facilitating the lithium ion conduction.

引用

页码：347 / 353

页数：7

共 30 条

[1] Structure of the polymer electrolyte poly(ethylene oxide)(3): LiN(SO2CF3)(2) determined by powder diffraction using a powerful Monte Carlo approach [J].