Composite polyether based solid electrolytes. The Lewis acid-base approach

被引：225

作者：

Wieczorek, W ^{[1
]}

Stevens, JR ^{[1
]}

Florjanczyk, Z ^{[1
]}

机构：

[1] WARSAW UNIV TECHNOL,DEPT CHEM,PL-00664 WARSAW,POLAND

来源：

SOLID STATE IONICS | 1996年 / 85卷 / 1-4期

关键词：

polyether based electrolytes; ion conductivity; solid electrolytes; Lewis acid-base approach; filler;

D O I：

10.1016/0167-2738(96)00042-2

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：

The conductivity and phase structure of several composite polyether-alkali metal salt solid electrolytes are analysed and discussed. Species containing Lewis acid centres (AlCl3), Lewis base centres (poly(N,N dimethylacrylamide) as well as those of amphoteric Lewis acid-base character (alpha-Al2O3) are used as fillers. It is suggested that the competition between the Lewis base ether oxygens in the polyether chains and filler Lewis base centres in the complexation of alkali metal cations leads to the formation of different types of complexes and therefore to the modification of the polymer electrolyte ultrastructure. On the other hand acidic centres on the fillers compete with the Lewis acid metal cations in the formation of complexes with the polyether chain. The final ultrastructure and conductivity of composite electrolytes depends on the equilibrium of these Lewis acid-base reactions.

引用

页码：67 / 72

页数：6

共 12 条

[1] COMPOSITE POLYMER ELECTROLYTES [J].