A Brief Review of Supercapacitors: Comparison with Traditional Capacitor and Batteries, their Types, and Fabrication Processes

In recent days there is a need of flexible energy storage requirement due to various applications and demands, In our daily utilization of portable and electronic devices such as mobile, laptop, RAM, CMOS, electric vehicle, cars etc., to control source and grid by renewable and hybrid energy storage systems. When we compare traditional capacitor with Supercapacitors, finds lot of difference with respect to their construction, performance characteristics and energy storage mechanism. In fabrication of supercapacitor there is lot of opportunities of improvement in energy density, power density, fast charging discharging time and cycle rates. Now a days in most of the application batteries also partly replaced by supercapacitor due its low power density, shorter cycle life and slow charging and discharging rate but even if today batteries are not completely replaced by super supercapacitor due to high energy density. Some applications where high-power density and power density is to be required supercapacitor used along with batteries. So overall supercapacitor is the ultimate option in energy storage devices as compare to traditional capacitor as well as batteries. While fabricating super capacitor need to focus on its manufacturing cost, availability of material, size, environmental impact, cost of fabrication, deposition and characterization processes.