Electrochemical studies of polyaniline in a gel polymer electrolyte - High energy and high power characteristics of a solid-state redox supercapacitor

Prasad, Rajendra K and Munichandraiah, N (2002) Electrochemical studies of polyaniline in a gel polymer electrolyte - High energy and high power characteristics of a solid-state redox supercapacitor. In: Electrochemical and Solid-State Letters, 5 (12). A271-A274.

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Abstract

Studies on redox supercapacitors employing electronically conducting polymers are of great importance for hybrid power sources and pulse power applications. In the present study, polyaniline (PANI) has been potentiodynamically deposited on stainless steel substrate and characterized in a gel polymer electrolyte (GPE). Use of the GPE facilitates a voltage limit of the capacitor to 1 V, instead of 0.75 V in aqueous electrolytes. From charge-discharge studies of the solid-state PANI capacitors, a specific capacitance of 250 F g(-1) has been obtained at a specific power of 7.5 kW kg(-1) of PANI. The values of specific capacitance and specific power are considerably higher than those reported in the literature. High energy and high power characteristics of the PANI are presented. (C) 2002 The Electrochemical Society.

Item Type:	Journal Article
Publication:	Electrochemical and Solid-State Letters
Publisher:	The Electrochemical Society
Additional Information:	Copyright of this article belongs to The Electrochemical Society.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	20 Jul 2011 06:31
Last Modified:	20 Jul 2011 06:31
URI:	http://eprints.iisc.ac.in/id/eprint/39168

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