High-temperature anion-exchange membrane fuel cell
AssigneeTechnion Research & Development Foundation Limited
InventorDario R. Dekel
Life of this patent
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Abstract
Anion exchange membrane electrode assemblies, fuel cells and electrochemical cells comprising such assemblies, which comprise an anion exchange membrane sandwiched between an anode compartment and a cathode compartment, and which are operable at a temperature of at least 100° C., are provided. Systems, devices, articles and methods that utilize such assemblies at an operating temperature of at least 100° C. are also provided.
Claims19
A method of operating an anion exchange membrane fuel cell comprising an anion exchange membrane sandwiched between an anode compartment and a cathode compartment, wherein said cathode compartment comprises a cathode electrode which comprises a cathode catalyst for promoting reduction of an oxidant to thereby generate anions and said anode compartment comprises an anode electrode which comprises an anode catalyst for promoting oxidation of a fuel, the method comprising contacting said cathode compartment with said oxidant, contacting said anode compartment with said fuel, and adjusting the operating temperature of the anion exchange membrane fuel cell to at least 100° C., wherein said anion exchange membrane conducts anions from said cathode compartment to said anode compartment and is a nanoporous or sub-nanoporous membrane featuring closed porosity and capable of applying capillary forces that liquefy at least a portion of the water therewithin.
A fuel cell comprising an anion exchange membrane sandwiched between an anode compartment and a cathode compartment, wherein said cathode compartment comprises a cathode catalyst for promoting reduction of an oxidant to thereby generate anions and said anode compartment comprises an anode catalyst for promoting oxidation of a fuel, the fuel cell being operable at an operating temperature of at least 100° C., wherein said anion exchange membrane conducts anions from said cathode compartment to said anode compartment and is a nanoporous or sub-nanoporous membrane featuring closed porosity and capable of applying capillary forces that liquefy at least a portion of the water therewithin.
An anion exchange membrane electrode assembly comprising an anion exchange membrane sandwiched between an anode compartment and a cathode compartment, wherein said cathode compartment comprises a cathode electrode which comprises a cathode catalyst for promoting reduction of an oxidant to thereby generate anions and said anode compartment comprises an anode electrode and an anode catalyst for promoting an electrochemical reaction, wherein said anion exchange membrane conducts anions from said cathode compartment to said anode compartment and is a nanoporous or sub-nanoporous membrane featuring closed porosity and capable of applying capillary forces that liquefy at least a portion of the water therewithin.
Dependencies are inferred from the claim text.