期刊
JOURNAL OF POWER SOURCES
卷 97-8, 期 -, 页码 812-815出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-7753(01)00613-9
关键词
conjugated polymers; electronically conducting polymers; polymer-based supercapacitors; poly(3-methylthiophene); supercapacitors
The use of electronically conducting polymers (ECPs) as pseudocapacitive electrode materials in high-power supercapacitors is a challenge to overcome the performance of carbon-based double-layer supercapacitors for applications requiring high power levels. ECPs provide different supercapacitor configurations but devices with the polymer n-doped form as the negative electrode and the p-doped form as the positive one are the most promising in term of energy and power. This type of supercapacitor has indeed a high operating voltage, it is able to deliver all the doping charge and it has in the charged state both electrodes in the conducting (p- and n-doped) states. Data for poly(3-methylthiophene) positive and negative electrodes, envisioned for a n/p-type supercapacitor, as well as data for cyclability of supercapacitors with composite electrodes based on such conventional polymer are here reported and discussed. The capacitance and cycling stability of poly(3-methylthiophene) are sufficiently high to take this polymer into consideration for supercapacitor technology. (C) 2001 Elsevier Science B.V. All rights reserved.
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