Fig. 6(A) shows the CV curves of FSS-SCs with PVA gel electrolyte
at different scan rates ranging from 5 to 100 mV s1 within
operating potential window of 0 to +1.2 V. From figure, it is
observed that the specific current increases with the scan rate with
nearly rectangular type nature, which indicating the effective utilization
of active electrode material by the PVA gel electrolyte.
The CV curves of FSS-SCs with CMC and PEO gel electrolytes are
shown in supporting Fig. 1(A) and (B). Further, the specific capacitance
is calculated at different scan rate using following equation
and plotted in Fig. 6(B).