For supercapacitors, we get symmetric triangular charge discharge curves with linear slope. Hence the formula C=I*t/m*V can be used. But for pseudo capacitors the charge discharge curves are no longer linear. Hence, how to calculate specific capacitance (F/g) from Charge discharge curves? Or is it proper to calculate or not?
Have attached a figure for bimetallic oxide material.
Current: 0.001746 A
Discharge time: (irrespective of linear or not): 738 s
Potential window: 1.0 V
Mass of active material: 7 mg
(ir drop is negligible)