Patent ID: 6762926
Filing Date: 2004-07-13
Classification: H01G,Y02E

Abstract:
A high energy-density supercapacitor, comprising:an anode; a cathode; at least one bipolar electrode interposed between the anode and the cathode; a plurality of separators disposed after the anode, the cathode and the at least one bipolar electrode, respectively; and an electrolyte impregnating the separators, wherein the anode, the cathode, the at least one bipolar electrode and the separators are spirally wound to form a jelly roll with an electric lead attached to the anode and a separate electric lead attached to the cathode, wherein the jelly roll is sealed at starting ends of all electrodes and separators, at very ends of all electrodes and separators, at a top of the jelly roll, as well as at a bottom of the jelly roll using a curable polymer.