Symmetric device performances of carbon based nanostructures for supercapacitors

Abstract

In this review article, symmetric device performances of carbon based nanostructures were reviewed and presented for supercapacitors. There are many important parameters to affect the supercapacitor device performances. The most important one is the formation of active materials used for electrodes. Nowdays, graphene based nanostructures have been used as an active electrode material due to their storage capability of more charges compared to other carbon materials. Supercapacitors divide two main parts: pseudocapacitors and electrical double layer capacitors (EDLCs). Conducting polymers are also used as important active material components due to their good conductivity. Some techniques were also presented to obtain information about capacitance, such as electrochemical impedance spectroscopy (EIS) etc.