Carbon-Based Fibrous EDLC Capacitors and Supercapacitors

被引：68

作者：

Lekakou, C. ^{[1
]}

Moudam, O. ^{[1
]}

Markoulidis, F. ^{[1
]}

Andrews, T. ^{[1
]}

Watts, J. F. ^{[1
]}

Reed, G. T. ^{[1
]}

机构：

[1] Univ Surrey, Fac Engn & Phys Sci, Guildford GU2 7XH, Surrey, England

来源：

JOURNAL OF NANOTECHNOLOGY | 2011年 / 2011卷

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1155/2011/409382

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper investigates electrochemical double-layer capacitors (EDLCs) including two alternative types of carbon-based fibrous electrodes, a carbon fibre woven fabric (CWF) and a multiwall carbon nanotube (CNT) electrode, as well as hybrid CWF-CNT electrodes. Two types of separator membranes were also considered. An organic gel electrolyte PEO-LiCIO4-EC-THF was used to maintain a high working voltage. The capacitor cells were tested in cyclic voltammetry, charge-discharge, and impedance tests. The best separator was a glass fibre-fine pore filter. The carbon woven fabric electrode and the corresponding supercapacitor exhibited superior performance per unit area, whereas the multiwall carbon nanotube electrode and corresponding supercapacitor demonstrated excellent specific properties. The hybridCWF-CNT electrodes did not show a combined improved performance due to the lack of carbon nanotube penetration into the carbon fibre fabric.

引用

页数：8

共 28 条

[1] An asymmetric supercapacitor with anthraquinone and dihydroxybenzene modified carbon fabric electrodes [J].