Simplified measurement method in the study of supercapacitors

Abstract

Methods for the rapid determination of the most critical parameters of supercapacitors, such as integral capacitance and leakage current, are described. These methods were compared with the standard galvanostatic method and a galvanostatic method previously modified by the authors of this work. In parallel with an industrial supercapacitor, tests were conducted on a new type of supercapacitor based on copper sulfide systems — chalcocite and covellite (\(\text{Cu}_2\text{S}\) and \(\text{CuS}\)).