RIGIDITY & INPLANE ELECTROLYTE MOBILITY ENHANCEMENT FOR FUEL CELL ELECTROLYTE MEMBRANES

Embodiments related to fuel cells and membrane-electrode assemblies for fuel cells are disclosed. In one disclosed embodiment, a membrane-electrode assembly includes a catalyzed anode material and a membrane disposed in face-sharing contact with the catalyzed anode material. The membrane comprises m...

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Bibliographische Detailangaben
Hauptverfasser:	KABIR, ZAKIUL, REGE, EVAN, CHEN, RU, EVANS, CRAIG
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BASIC ELECTRIC ELEMENTS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOSITIONS BASED THEREON ELECTRICITY GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS 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 THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	Embodiments related to fuel cells and membrane-electrode assemblies for fuel cells are disclosed. In one disclosed embodiment, a membrane-electrode assembly includes a catalyzed anode material and a membrane disposed in face-sharing contact with the catalyzed anode material. The membrane comprises mutually interpenetrating first and second phases, the first phase supporting an ionic conduction through the membrane, and the second phase supporting a dimensional structure of the membrane. The membrane-electrode assembly also includes a catalyzed cathode material disposed in face-sharing contact with the membrane, opposite the catalyzed anode material. Two opposing flow plates are also provided, each flow plate configured to distribute a reactant gas to a catalyzed electrode material of the membrane-electrode assembly. Other embodiments provide variants on the membrane-electrode assembly and methods to make the membrane-electrode assembly. L'invention concerne, selon des modes de réalisation, des piles à combustible et des ensembles membrane/électrodes destinés à des piles à combustible. Selon un mode de réalisation particulier, un ensemble membrane/électrodes comporte une substance anodique catalysée et une membrane placée au contact de la substance anodique catalysée sur une face. La membrane comprend des première et seconde phases imbriquées, la première phases permettant une conduction ionique à travers la membrane et la seconde phase conférant une structure dimensionnelle à la membrane. L'ensemble membrane/électrodes comprend également une substance cathodique catalysée placée au contact de la membrane sur une face et opposée à la substance anodique catalysée. Deux plaques d'écoulement opposées permettent chacune de répartir un gaz réactant sur un matériau d'électrode catalysé de l'ensemble membrane/électrodes. L'invention concerne, selon d'autres modes de réalisation, des variantes de l'ensemble membrane/électrodes et des procédés de fabrication de l'ensemble membrane/électrodes.