Poly(ethylenedioxythiophene) (PEDOT) as polymer electrode in redox supercapacitor

被引:181
作者
Ryu, KS [1 ]
Lee, YG [1 ]
Hong, YS [1 ]
Park, YJ [1 ]
Wu, XL [1 ]
Kim, KM [1 ]
Kang, MG [1 ]
Park, NG [1 ]
Chang, SH [1 ]
机构
[1] ETRI, Power Source Device Team, Taejon 305350, South Korea
关键词
supercapacitor; redox type; hybrid type; conducting polymer; active carbon; poly(ethylenedioxythiophene);
D O I
10.1016/j.electacta.2004.02.055
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
We have fabricated two types of supercapacitors, redox and hybrid, based on poly(ethylenedioxythiophene) (PEDOT) and MSP-20 powder as electrode materials with Et4NBF4 in PC and LiPF6 in EC/DMC as electrolyte solutions. The redox type of supercapacitor is assembled with two PEDOT electrode sheets, while the hybrid type with PEDOT and MSP-20 electrode sheets. Their electrochemical properties in different electrolyte solutions and cut-off voltage range are investigated. From the results of charge and discharge for the hybrid type, the specific discharge capacitance of 56 F/g after 1000th cycle in the range 0-3 V is observed with LiPF6 in EC/DMC system. The electrochemical properties of the hybrid type supercapacitor are shown much better than them of the redox type. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:843 / 847
页数:5
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