Investigation of Fork Shaped Electrodes for Asymmetric Supercapacitors

Abstract

Electrical Energy can be easily converted to other forms of energy like heat, light, sound, etc. Electrical energy storage devices are necessary because electrical energy created after conversion of primary energy source is not consumed immediately. There are several electrical energy storage devices like batteries, fuel cells, and supercapacitors. Asymmetric supercapacitors are the newest innovation in the field of electrical energy storage devices. Asymmetric supercapacitors are pulse current devices that have high power densities and long-life cycles, making them a candidate that have the potential to replace conventional energy storage devices. The intent of this research work arises because most electrical energy storage devices have rectangle shaped electrodes but since there is no binder material that is electrically conductive, it hinders the performance of the device. Research has been previously conducted on performance of asymmetric supercapacitors with binder free rectangle shaped electrodes with respect to electrode configuration. In this paper, fork shaped electrode structure of asymmetric supercapacitors are compared alongside generic rectangle shaped electrodes of asymmetric supercapacitors in terms of specific capacitance (mF per sq. cm) and its variation over time.