Electrodeposited MnO2- Carbon Cloth Supercapacitor Electrode Material for High Power Applications

Abstract

Carbon cloth is a promising new material for the electrodes of supercapacitors, owing to their high surface area, flexibility, high conductivity with chemical stability. In this work, MnO₂ was electrodeposited on a commercially available post treated carbon cloth. The MnO₂ deposited carbon cloth was examined using HRSEM, which reveals the formation of nanosized irregular structure of MnO₂ over the carbon cloth. Electrochemical study was performed which revealed the specific capacitance of 483 Fg^–1 at a scan rate of 10mVs^–1. The fabricated device exhibited good electrochemical performance with energy density of 22WKg^–1 at a power density 330KWKg^–1. The results were convincing to use this material for high power applications.