Patent ID: 8295030

Claim:
A composite membrane for a supercapacitor, comprising: a carrier; and a mixture comprising a catalytic material and a dispersion resin, wherein the catalytic material is capable of catalyzing accumulated hydrogen and oxygen in a supercapacitor to combine to form water, thereby reducing the pressure in the supercapacitor and increasing supercapacitor efficiency; and wherein the mixture is applied to the carrier to form the composite membrane having a thickness of about 10-100 μm, and further wherein the catalytic material is a precious metal in Group VIII selected from the group consisting of platinum (Pt), iridium (Ir), osmium (Os), palladium (Pd), rhodium (Rh), ruthenium (Ru), cobalt (Co), and iron (Fe), and alloys thereof, or a rare earth metal of the La group selected from the group consisting of praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy) holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), and lutetium (Lu), and their alloys.