Effect of modified montmorillonites on the ionic conductivity of (PEO)16LiClO4 electrolytes

被引：56
|
作者：
Fan, LZ [1 ]
Nan, CW [1 ]
Dang, ZM [1 ]
机构：
[1] Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2002年 / 47卷 / 21期
关键词：
poly(ethylene oxide); polymer electrolytes; montmorillonite; ionic conductivity; nanocomposite;
D O I：
10.1016/S0013-4686(02)00325-0
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Three kinds of modified montmorillonites were prepared by ion exchange method, and added into (PEO)(16)LiClO4 matrix to study the effect on the ionic conductivity of (PEO)(16)LiClO4 electrolytes. The structure of the modified montmorillonites and polymer composites were characterized by wide-angle X-ray diffraction. HP 4192A was used to measure the ionic conductivity of the polymer electrolytes. The results show that the addition of optimum content of 250-Li-mont enhances the ionic conductivity of the PEO based electrolyte by nearly;90 times more than the plain system and that is much higher than the other two modified montmorillonites. The difference of enhancement in conductivity caused by adding these three montmorillonites can be attributed to the difference in structure of the samples as characterized by wide-angle X-ray diffraction. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：3541 / 3544
页数：4
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