Impedance study of (PEO)10LiClO4-Al2O3 composite polymer electrolyte with blocking electrodes

被引：269

作者：

Qian, XM ^{[1
]}

Gu, NY ^{[1
]}

Cheng, ZL ^{[1
]}

Yang, XR ^{[1
]}

Wang, EK ^{[1
]}

Dong, SJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Electroanalyt Chem Lab, Changchun 130022, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2001年 / 46卷 / 12期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

composite polymer electrolyte; poly(ethylene oxide) (PEO); Al2O3; particles; ionic conductivity; impedance spectra;

D O I：

10.1016/S0013-4686(00)00723-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A composite solid polymer electrolyte (SPE) of (PEO)(10)LiClO4-Al2O3 was prepared and Pt and stainless steel(SS) blocking electrodes were used for an impedance study. It was found that the semicircle in the high frequency range and the straight line in the low frequency range depend upon different blocking electrodes and polarization potentials applied in the experiments. In the equivalent circuit. two constant phase elements (CPE) have been used instead of the pure geometrical and double layer capacitances. respectively. A theoretical line calculated from their estimated values has a good correlation with the experiment data. Moreover. the equivalent circuit also can be used to explain the impedance properties of Pt and stainless steel (SS) blocking electrodes both in the high and the low frequency ranges. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1829 / 1836

页数：8

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