Membrane electrode assembly with periphery gasket and...

H - Electricity – 01 – M

Patent

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Details

H01M 8/04 (2006.01) H01M 2/08 (2006.01)

Patent

CA 2506592

The present invention provides membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical applications. The invention further provides membrane cassettes which comprise one or more composite membrane electrode assemblies which have a peripheral gasket where the gasket has at least one groove or channel for introducing and distributing a sealant about the cassette. In certain preferred embodiments, the invention provides cassettes and stacks which are suitable for use in fuel cell applications.

La présente invention concerne des cassettes à membranes et leurs empilements, qui peuvent être utilisés de façon appropriée dans diverses applications électrochimiques. Elle concerne également des cassettes à membranes, qui comprennent un ou plusieurs ensembles électrodes membranaires composites présentant un joint d'étanchéité périphérique. Le joint d'étanchéité périphérique présente au moins une rainure ou canal permettant d'introduire ou de distribuer un mastic autour de la cassette. Dans certains modes de réalisation préférés, on décrit des cassettes et des empilements pouvant être utilisés de façon appropriée dans des applications de piles à combustible.

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