Patent ID: 9728344
Date: 2017-08-08
CPC Classifications: H01G,Y02E

Claim:
1. An energy storage device, comprising: an electrical double layer capacitor (EDLC) including at least two electrodes separated by a redox-enhanced electrolyte having an integral active component for storing a charge; wherein the redox-enhanced electrolyte includes at least two redox couples, such that there is a different one of the redox couples for each of the electrodes; wherein, when charged, the charge is stored in Faradaic reactions with the at least two redox couples in the electrolyte and in a double-layer capacitance of a porous carbon material that comprises at least one of the electrodes; and wherein a self-discharge of the energy storage device is mitigated by at least one of electrostatic attraction, adsorption, physisorption, and chemisorption of a redox couple onto the porous carbon material.