ELECTRODE DESIGN WITH OPTIMAL IONOMER CONTENT FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL
A method of making a membrane electrode assembly for a fuel cell, a membrane electrode assembly, a fuel cell and a fuel cell system. The method includes preferentially adsorbing an ionomer and electrocatalyst mixture onto the surface of a porous fuel cell substrate by appropriate treatment of the mi...
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Format | Patent |
Language | English |
Published |
03.03.2016
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Abstract | A method of making a membrane electrode assembly for a fuel cell, a membrane electrode assembly, a fuel cell and a fuel cell system. The method includes preferentially adsorbing an ionomer and electrocatalyst mixture onto the surface of a porous fuel cell substrate by appropriate treatment of the mixture prior to or contemporaneous with placement of the mixture onto the substrate. This promotes retention of the ionomer-coated electrocatalyst at or near the surface of the substrate where catalytic activity between it and a proton exchange membrane is designed to take place. Retention of the ionomer-coated electrocatalyst near these interfacial regions by the present invention is preferable to having the ionomer and electrocatalyst be significantly absorbed into the substrate. |
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AbstractList | A method of making a membrane electrode assembly for a fuel cell, a membrane electrode assembly, a fuel cell and a fuel cell system. The method includes preferentially adsorbing an ionomer and electrocatalyst mixture onto the surface of a porous fuel cell substrate by appropriate treatment of the mixture prior to or contemporaneous with placement of the mixture onto the substrate. This promotes retention of the ionomer-coated electrocatalyst at or near the surface of the substrate where catalytic activity between it and a proton exchange membrane is designed to take place. Retention of the ionomer-coated electrocatalyst near these interfacial regions by the present invention is preferable to having the ionomer and electrocatalyst be significantly absorbed into the substrate. |
Author | KOZHINOVA IRINA KUMARAGURU SWAMINATHA P KOESTNER ROLAND J |
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Snippet | A method of making a membrane electrode assembly for a fuel cell, a membrane electrode assembly, a fuel cell and a fuel cell system. The method includes... |
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SubjectTerms | BASIC ELECTRIC ELEMENTS CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE |
Title | ELECTRODE DESIGN WITH OPTIMAL IONOMER CONTENT FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL |
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