3.3.1 Cyclic voltammograms (CV)
Cyclic voltammograms were used to observe the electrochemical
interaction between the acetone nitrile, PEO, and iodide/iodine polymer
electrolyte sheets. It is apparent that NaI+TiC films exhibit good redox
behavior with two redox peaks at slow scan rates, in Nano
filler-containing PEO: NaI film. Figure 5 shows the hysteresis curve
which exhibit the supercapacitor behavior. The graph’s specific
capacitance Csp value for the EDLC device has been
determined using eqn (4)
\(C=\frac{I}{s}\) (4)
Where Csp is the one electrode’s capacitance, m is the
active electrode material’s mass at one electrode, I is the average
current,and s is the scan rate (s = 5 mV/s). Thus, the specific
capacitance of EDLC is determined to be 190 F/g. Additionally, the
EDLC’s Csp value was calculated using the low-frequency impedance
spectroscopy data mentioned in the following section.