Polyaniline and Polythiophene Modified Electrodes in Energy Storage Units with hydrocarbon gel/Bentonite/Sodium Chloride as Electrolyte Gel

Abstract

In this paper we present results obtained for energy storage units developed using polyaniline and polythiophene modified electrodes. The voltage potential prof iles for recharge/discharge are either linear or exponential. Nucleation over - potential has been observed in some profiles where there is a phase transition. It is observed that hydrocarbon gel: bentonite electrolyte mixtures yielded relatively high initia l voltages and that, this voltage also depended on the hydrocarbon: bentonite ratio. The potential decay profile for potential at Vo, 3/4Vo, 1/2Vo and 1/3Vo yielded linear and exponential curves for various hydrocarbon:bentonite mixtures. The capacity (C) were 0.0014 Ah, for the 2:1 energy unit and 0.00035 Ah for the 3:1 energy unit. The electric storage density (ESD) for the 2:1 and 3:1 energy units were 4.7 × 10 - 4 Ah/g and 8.8 × 10 - 5 Ah/g Key words : Electronically conducting polymers, Bentonite, Hydrocarbon gel, discharge profil