Flexible polyaniline coated carbon cloth as binder-free electrode material for symmetric supercapacitor application

Flexible polyaniline coated carbon cloth as binder-free electrode material for symmetric supercapacitor application

Authors:

A.A. Klimont S.V. Stakhanova R.R. Galimzyanov O.V. Uryupina K.A. Semushin I.S. Krechetov M. Kundu M.V. Astakhov

Abstract:

Nano-structured polyaniline (PANI) containing composite electrodes based on Busofit T-040 carbon cloth (CC) with high specific surface area have been developed for symmetric supercapaitor devices by one-step chemical polymerization of aniline. The capacitive performance of the CC as well as the PANI/CC composites was characterized by the cyclic voltammetry (CV) and the galvanostatic charge-discharge in H₂SO₄-based aqueous electrolyte. A PANI/CC composite demonstrates significant capacitance enhancement up to 222 F g^-1 and 6,7 F cm^-2 (vs. 120 F g^-1 and 3,1 F cm^-2 for CC). The coulomb efficiency of the composites has been measured to be about 97-99 %. The technological simplicity, easy to scale up and the electrochemical performance of the flexible binder-free PANI/CC electrodes demonstrate the significance of this work for industrial application.