A REVIEW ON ELECTROCHEMICAL SUPERCAPACITORS OF COMPOSITE-METAL-OXIDE NANOSTRUCTURES

In near future, use of electrochemical supercapacitors plays important role in energy and power storage applications which are broadly classified into two types; a) electrochemical-double layer capacitors, and b) redox capacitors. Favorable electrode materials used in electrochemical supercapacitors include transition metal oxides, conducting polymers, carbons and their composites etc. Now-a-days the aqueous and non-aqueous chemically grown metal oxide thin film electrodes including ruthenium oxide, iridium oxide, manganese oxide, cobalt oxide, nickel oxide, tin oxide, iron oxide, pervoskites, ferrites etc., have been envisaged for electrochemical supercapacitor application. This review presents a brief literature survey regarding electrode materials employed, so far, in electrochemical supercapacitors. Efforts have also been taken to highlight their configurations and charge transport/ collection kinetics.