The electrolyte is an essential part of a supercapacitor, conditioning its performance. Thus, the specific capacitance measured for the supercapacitor electrode in the typical three-electrode arrangement of an electrochemical cell is sometimes not reflected in the supercapacitor. For this reason, ZnMn2O4 electrodes have been manufactured by spray pyrolysis on ITO/glass. The electrodes have been characterized electrochemically, and in symmetrical supercapacitors in which three types of electrolyte have been used, studying the effect of the electrolyte on the stability of the electrode and the capacity of the supercapacitor
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