Characterization of supercapacitor based on using conditions impacts evaluation on cell resistance and capacitance

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 state of charge (SOC), the number of cycles (NbCy), the frequency of DC-current combined to temperature. The goal of this study consists to show the parameters evolution which can serve to determine the lifetime of supercapacitor for different conditions of use. The contribution of the paper is focused on the impacts of charge/discharge current's frequency and the temperature coupled to 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 supercapacitors characterization, the experimental tests based on charge and discharge operations with fluctuating DC-current are done. The experimental tests results are presented and the impacts of state of charge, the number of cycles, the frequency of DC-current and the temperature are analyzed.

Mots clés: supercapacitor characterization; cell resistance; cell capacitance; supercapacitor parameter variation; state-of-charge; SOC; cycle number; DC-current frequency; supercapacitor lifetime; charge-discharge current frequency; charge-discharge operation; DC-current fluctuation; Ambient temperature tests; Characterization of supercapacitor; ultracapacitors; dynamic DC-current; state of charge; number of cycles; frequency impact; series resistance variation; capacitance variation

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

Mamadou Baïlo Camara, K. Bellache, M.B. Camara, B. Dakyo. Characterization of supercapacitor based on using conditions impacts evaluation on cell resistance and capacitance. IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, Oct 2016, Florence, Italy. pp.2004-2009, ⟨10.1109/IECON.2016.7793361⟩. ⟨hal-02994399⟩