SYNTHESIS OF Ru DOPED COPPER OXIDE BY ELECTRODEPOSITION AND ITS SUPERCAPACITIVE CHARACTERIZATION

Abstract

newline Supercapacitor (also called as EDLC s or ultracapacitor) are the capacitors having high energy density than electrostatic capacitors. The EDLC s was first time invented in 1957 by General Electric engineers during the manufacturing of devices using porous carbon electrode. They observed that, energy gets stored in the carbon pores and gives high capacitance value, but the mechanism of charge storage was unknown to them at that time. Further this research was continued by researchers at Standard Oil of Ohio in 1966, during the designs of Fuel cell. The cell design contains two layers of activated charcoal separated by a thin porous insulator and the basic design of this cell was similar of EDLSC. Today Tecate Group Power Burst® used advanced manufacturing processes and materials to made high quality ultracapacitors inthemarket. ES are one of the most developing types of power sources. ES have attracted significant attention due to their high SP, long service life and applications. Supercapacitors are energy storage devices having energy and power lies in intermediate between rechargeable batteries and electrolytic capacitors [1]. The high power performance of supercapacitors is attributed to the fast charge-discharge characteristics of a double layer process or the high electrochemical reversibility of redox transitions within electrode materials [2]. Thus, supercapacitors are most attractive energy storage systems particularly for high power requirements. Supercapacitors presently viewed as novel kind of energy storage device. There is a growing demand for environment friendly hybrid electric vehicles. To pick up the efficiency of power system of hybrid electric vehicle, there is a need for the use of ES thatarethecapableofsupplyingalargeamountofcurrentwithinafractionoftimethan the existing battery system for energy storage.