酚醛基活性炭纤维双电层电化学电容器的研究

doi:10.61558/2993-074X.2817

电化学（中英文） ›› 2011, Vol. 17 ›› Issue (1): 57-62. doi: 10.61558/2993-074X.2817

酚醛基活性炭纤维双电层电化学电容器的研究

薛荣;阎景旺;田颖;衣宝廉;

中国科学院大连化学物理研究所;

收稿日期:2011-02-28 修回日期:2011-02-28 出版日期:2011-02-28 发布日期:2011-02-28

Electrochemical Double-layer Capacitors Using Phenolic Resin-based Carbon Fibers

XUE Rong,YAN Jing-wang,TIAN Ying,YI Bao-lian

(Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,Liaoning,China

Received:2011-02-28 Revised:2011-02-28 Published:2011-02-28 Online:2011-02-28

摘要/Abstract

摘要： 利用KOH活化制得了酚醛基活性炭纤维(ACF).研磨后形成细颗粒酚醛基活性炭纤维材料(P-ACF).对比研究P-ACF与ACF在6 mol·L-1 KOH溶液中的电化学性能,结果表明:P-ACF电极表现出更佳的电容性质,比电容达200 F·g-1,大电流放电比电容衰减速率较慢,其微孔离子迁移电阻(Rp,2.96Ω)较ACF的(4.65Ω)小.研磨可增加ACF的断面暴露量,降低纤维间接触电阻和微孔内离子迁移电阻.

关键词: 酚醛, 活性炭纤维, 超级电容器

Abstract: Phenolic resin-based activated carbon fiber(ACF) was prepared by KOH activation.The electrochemical properties of pulverized phenolic resin-based carbon fiber(P-ACF) were examined in 6 mol·L-1 KOH compared with that of the original ACF.P-ACF exhibited a better capacitive behavior and showed a larger specific capacitance(200 F·g-1) as well as a lower capacitance decrease at high current densities.The pore resistance for ion migration(Rp) in P-ACF was lower(2.96 Ω) than that in ACF(4.65 Ω).Pulverization increased the exposure of the cross section,lowered the contact resistance between the carbon fibers and decreased the pore resistance for ion migration.

Key words: phenolic resin, activated carbon fiber, supercapacitor

中图分类号:

TM53

薛荣, 阎景旺, 田颖, 衣宝廉, . 酚醛基活性炭纤维双电层电化学电容器的研究[J]. 电化学（中英文）, 2011, 17(1): 57-62.

XUE Rong, YAN Jing-wang, TIAN Ying, YI Bao-lian . Electrochemical Double-layer Capacitors Using Phenolic Resin-based Carbon Fibers[J]. Journal of Electrochemistry, 2011, 17(1): 57-62.

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酚醛基活性炭纤维双电层电化学电容器的研究

Electrochemical Double-layer Capacitors Using Phenolic Resin-based Carbon Fibers

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