Role of conducting carbon in electrodes for electric double layer capacitors

被引：14

作者：

Dangler, Chris ^{[1
]}

Rane-Fondacaro, Manisha ^{[1
]}

Devarajan, Thamarai Selvi ^{[1
]}

Higashiya, Seiichiro ^{[1
]}

Snyder, Jeremy ^{[1
]}

Haldar, Pradeep ^{[1
]}

机构：

[1] SUNY Albany, Coll Nanoscale Sci & Engn, Albany, NY 12203 USA

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 02期

关键词：

EDLC; Conductivity enhancers; Electrochemical performance; Current collector treatment; SUPERCAPACITOR;

D O I：

10.1016/j.matlet.2010.09.067

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Six electrodes with a varying amount (5, 10, and 15 wt.%) of conducting carbon nanotubes (CNT) and carbon nanofibers (CNF) were fabricated and their performance evaluated against a control sample that was devoid of any conducting material. The goal of this work was to determine the correlation between electrode conductivity and capacitance in 1 M tetraethyl ammonium tetrafluoroborate (TEABF(4)) in propylene carbonate (PC) electrolyte. CNT electrodes exhibit the lowest electrical resistance, while CNF electrodes had the highest capacitance. The specific capacitance (120-140 F/g) increased monotonically up to 2.5 V. An inverse correlation between electrical resistance and capacitance was observed for various concentrations. The electrodes were characterized using CV, EIS, SEM, and BET analysis. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：300 / 303

页数：4

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