Investigation of AC impedance of corn grain activated carbon for electrochemical capacitors.

抄録

Activated carbon is playing in an important role in EDLC due to activated carbon has very high specific surface area and low cost, with higher specific surface area the specific capacitance is improved. While EDLC is a supercapacitor made itself has an advantage in fast charge-discharge, long life cycle but having low energy density, the internal resistance also play an important role in cell capacitance. So to know the internal resistance of cell electrode is ineluctable for the next improvement in the future. Thus the experiment is investigate in corn grain activated carbon impedance.