期刊
SOLID STATE IONICS
卷 148, 期 3-4, 页码 493-498出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0167-2738(02)00093-0
关键词
electrochemical supercapacitor; hybrid supercapacitor; p-doping; n-doping; n/p type supercapacitor; poly3-methylthiophene
This paper summarizes the performance data of conventional and especially designed thiophene-based conducting polymers for use as positive and negative electrodes in n/p type supercapacitors. Performance data of polymer composite electrodes are also compared with those of high surface area carbon-based composite electrodes. On the basis of capacity, capacitance and electrode charging resistance data, we selected the best electrode materials, and assembled and tested galvanostatic charge-discharge cycles n/p type pMeT-based supercapacitors and hybrid supercapacitors with pMeT as positive electrode active material and activated carbon as negative. The results of this investigation demonstrate that a conventional polymer such as pMeT can be successfully used in the supercapacitor technology when a hybrid configuration is realized; its use is, indeed, a great advantage because the hybrid supercapacitor outperforms the double-layer carbon supercapacitors presently on the market in terms of specific energy and power. (C) 2002 Elsevier Science B.V. All rights reserved.
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