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OwnerTakayuki Hirashige, Tomoichi Kamo +1inventors
InventorsTakayuki Hirashige, Tomoichi Kamo, Kenji Yamaga
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The present invention provides an electrolyte membrane with high proton conductivity and low methanol permeability, a high output MEA and DMFC. The electrolyte membrane is characterized by comprising a metal oxide hydrate having proton conductivity and an organic polymer having proton conductivity. A preferable metal oxide hydrate is zirconium oxide hydrate or tungsten oxide hydrate. The composite electrolyte membrane has an ion exchange capacity of 0.75 to 1.67 meq/g as a preferable range. The composite electrolyte membrane constituted by the metal oxide hydrate and the organic polymer is provided with high proton conductivity and low methanol permeability so that MEA for DMFC with high output is provided.
A composite electrolyte membrane for a DMFC, characterized by comprising a metal oxide hydrate having proton conductivity and an organic polymer having proton conductivity.
A method of manufacturing a composite electrolyte membrane for a DMFC comprising:
A membrane electrode assembly comprising a cathode catalyst layer for reducing oxidizing gas and an anode catalyst layer for oxidizing methanol, the catalyst layers sandwiching an electrolyte membrane, wherein the electrolyte membrane is constituted by a metal oxide hydrate having proton conductivity and an organic polymer having proton conductivity.
A DMFC wherein air or oxygen is supplied to a cathode and methanol or a methanol aqueous solution is supplied to an anode thereby to generate electricity, and wherein an anode catalyst layer for reducing oxidizing gas and an anode catalyst layer for oxidizing methanol sandwich a composite electrolyte membrane constituted by a metal oxide hydrate and an organic polymer.
A composite electrolyte membrane for a DMFC comprising a metal oxide hydrate having proton conductivity and an organic polymer having proton conductivity.
Dependencies are inferred from the claim text.