Multi-physical characterization of supercapacitor

Mamadou Baïlo Camara (1) , K. Bellache (1) , M.B. Camara (1) , B. Dakyo (1)

1 GREAH - Groupe de Recherche en Electrotechnique et Automatique du Havre

This paper presents the supercapacitor parameters variations due to number of cycles (NbCy), the frequency of DC-current and the temperature. The goal of this study consists to show the parameters evolution which can serve to determine the supercapacitor energetic performances limits estimation for different conditions of use. The contribution of the paper is focused on the impacts of charge/discharge DC-current's frequency, the temperature and the number of cycles on supercapacitor resistance and capacitance. The proposed method uses several DC-current profiles based on fluctuations and no fluctuations consideration. To do the supercapacitor stress tests, the experimental tests based on charge and discharge operations with fluctuating DC-current are done. To do estimation of the series resistance and capacitance (characterization) a constant DC-current without any fluctuations consideration is used. The experimental tests results are presented and the impacts of the number of cycles, the frequency of DC-current and the temperature are analyzed.

Mots clés: capacitance; electric resistance; supercapacitors; supercapacitor multiphysical characterization; supercapacitor parameter variations; charge-discharge DC-current frequency impact; supercapacitor resistance; supercapacitor capacitance; supercapacitor stress test; DC-current fluctuation; series resistance estimation; series capacitance estimation; Characterization of supercapacitor; ultracapacitor; dynamic DC-current; number of cycles; frequency impact; temperature impact; series resistance variation; capacitance variation

Domaines: Sciences de l'ingénieur [physics]; Energie électrique

Mamadou Baïlo Camara, K. Bellache, M.B. Camara, B. Dakyo. Multi-physical characterization of supercapacitor. 2017 Twelfth International Conference on Ecological Vehicles and Renewable Energies (EVER), Apr 2017, Monte-Carlo, France. pp.1-5, ⟨10.1109/EVER.2017.7935862⟩. ⟨hal-02994320⟩