Supercapacitor Characterization Using Fluctuating DC Current - Impacts of State of Charge, Number of Cycle and Frequency on Cell Resistance and Capacitance

Mamadou Baïlo Camara (1) , K. Bellache (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 cycle (NbCy) and frequency of DC-current in ambient temperature tests conditions. 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 DC-current frequency coupled to number of cycle 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 dynamic (fluctuating) DC-current are done. The experimental tests results are presented and the impacts of state of charge, the number of cycle and frequency of DC-current are analyzed.

Mots clés: Supercapacitors; Resistance; Capacitance; State of charge; Discharges (electric); Voltage measurement; Batteries; supercapacitor characterization; fluctuating DC current; state of charge; cell resistance; cell capacitance; ambient temperature tests conditions; DC-current frequency; supercapacitor resistance; supercapacitor capacitance; DC-current profiles; discharge operations; dynamic fluctuating DC-current

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

Mamadou Baïlo Camara, K. Bellache, B. Dakyo. Supercapacitor Characterization Using Fluctuating DC Current - Impacts of State of Charge, Number of Cycle and Frequency on Cell Resistance and Capacitance. 2016 IEEE Vehicle Power and Propulsion Conference (VPPC), Oct 2016, Hangzhou, China. pp.1-5, ⟨10.1109/VPPC.2016.7791791⟩. ⟨hal-02994389⟩