Studies of activated carbons used in double-layer capacitors

被引：1087

作者：

Qu, DY ^{[1
]}

Shi, H ^{[1
]}

机构：

[1] Emtech, Mississauga, ON L5L 1J9, Canada

来源：

JOURNAL OF POWER SOURCES | 1998年 / 74卷 / 01期

关键词：

activated carbon; supercapacitor; pore size distribution; high rate; pore accessibility;

D O I：

10.1016/S0378-7753(98)00038-X

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：

Various kinds of activated carbon materials were investigated by means of nitrogen gas adsorption, AC impedance and constant current discharge techniques. The relation between the intrinsic pore size distribution of activated carbon materials and their electrochemical performance as electrodes of supercapacitor were discussed in detail. Activated carbons with larger pores are found to be more suitable for high power applications. The electrochemical accessible time to pores of various sizes obtained from the fitting of AC impedance data was successfully correlated with the pore size distribution of the materials. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：99 / 107

页数：9

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