The electrical conduction of an EDL

The electrical conduction of an EDLC at the planner electrode surfaces is controlled by the electrical field across the electrode and electrolyte and also the chemical affinities between them. Because anelectrode exhibits a high specific area with a porous structure, EDLCbehavior is highly contingent on porosity. Thus, the transportation ofparticles in the confined system is critically governed by factors such asthe affinity of the tortuous mass transfer path, the area constraintswithin the pores, the electrical phenomenon related to the solution, andthe pore surface wettability by the solution. Fig. 6 schematically demonstrates the mechanism for EDLCs using porous carbon conductingmaterials.