Gas diffusion substrate

Details Gas diffusion substrate Gas diffusion substrate

H - Electricity

01

M

H01M 8/10 (2006.01) H01M 4/86 (2006.01) H01M 4/96 (2006.01) H01M 8/02 (2006.01)

Patent

CA 2405318

A fuel cell gas diffusion substrate comprising primary fibres, secondary fibres and one or more thermoplastic poly-mers for binding said primary and secondary fibres, characterised in that said secondary carbon fibres are in the form of carbon nanofibres, and a gas diffusion electrode and membrane electrode assembly prepared therefrom are disclosed.

L'invention concerne un substrat de diffusion gazeuse pour pile à combustible comprenant des fibres primaires, des fibres secondaires, un ou plusieurs polymères thermoplastiques destinés a assurer une liaison entre les fibres primaires et secondaires, caractérisé en ce que les fibres secondaires en carbone sont sous la forme de nanofibres de carbone, ainsi qu'un assemblage d'électrodes à diffusion gazeuse et à membrane préparé à partir de ce substrat.

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