Thermal and voltage testing and characterization of supercapacitors and batteries

The aim of the paper is to present and emphasize the benefits of using hybrid storage devices (composed of batteries and supercapacitors) and typical controllers in a wide range of applications, especially in the automotive field. In order to offer an optimal integration of the mentioned devices for different types of applications, the focus is oriented on an experimental study of the electrical and thermal behavior of the organic supercapacitors. The impedance spectroscopy and DC charge / discharge tests were made to observe the behavior of the fast release storage devices and to experimentally determine the electric series resistance and the capacitance variation of the supercapacitors. The experimental and simulation results are presented, analyzed and compared. Also, the mathematical model was determined by interpreting the experimental data obtained as a result of the DC charge / discharge measurements.