Characterization of Supercapacitors for Electric Vehicles Applications

Abstract

In this paper, the characterization of the supercapacitor is carried out, especially for applications in electric vehicles regenerative braking. Supercapacitors (SC) are explored in terms of self-discharge, and different charge-discharge currents. Supercapacitor testing has been carried out for charging, discharging, and self-discharge testing using the BCAP3000 P270 supercapacitor with a voltage of 2.7 V and a rated capacitance of 3250 F. The experiments were conducted using either a single supercapacitor or a pack of supercapacitors. On the basis of the estimated charge-discharge time, the results of the charge-discharge test will be compared. According to the findings of the SC charging and discharging tests, there are variances in the computation of the charging and discharging time ranging from 5.33% to 32.19%. The self-discharge test shows that for 40 days, the supercapacitor cell voltage drops from 2.7 V to 1.819 V.