Materials and processes for providing fuel cells and active...

Details Materials and processes for providing fuel cells and active... Materials and processes for providing fuel cells and active...

H - Electricity

01

M

H01M 8/10 (2006.01) H01M 4/88 (2006.01)

Patent

CA 2371428

The materials and processes for forming fuel cell electrodes can include substrates of codeposited materials including an electrically conductive material, such as graphite, a polymer film, such as a proton-exchange membrane, and a catalytic material, such as platinum. The material may be applied to a polymer film by combustion chemical vapor deposition (CCVD) to produce a layered membrane, or the polymer may be deposited simultaneously with the catalytic coating to produce a membrane wherein the layers are intermingled. Proton exchange membranes prepared by this method are useful in the manufacture of fuel cells.

La fabrication d'électrodes pour piles à combustible peut faire intervenir des substrats de matériaux co-déposés dont un matériau électriquement conducteur tel que du graphite, un film polymère tel qu'une membrane échangeuse de protons et un matériau catalytique, du platine par exemple. Le matériau peut être appliqué sur un film polymère par dépôt chimique en phase vapeur, par combustion, et produire un dépôt membranaire. Le polymère peut également être déposé en même temps que le dépôt catalytique et produire une membrane dans laquelle les couches sont entremêlées. Les membranes échangeuses de protons réalisées selon ce procédé conviennent pour la fabrication de piles à combustible.

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