Electric and Thermal Characterization of Inorganic Supercapacitors

Abstract

Supercapacitors represent an alternative to the actual storage devices being able to provide high power density. The present paper is focused on characterizing the inorganic aqueous stacked supercapacitors. DC charge/discharge method was used to determine the dependency between the electric series resistance, capacitance, and temperature. The electric impedance spectroscopy method was used to determine the variation in frequency of the real and imaginary part of the impedance. Based on the experiments an electric model was developed. The results of the simulations are compared with the experiments and the results are interpreted and discussed.