Membrane based electrochemical cell stacks

Details Membrane based electrochemical cell stacks Membrane based electrochemical cell stacks

H - Electricity

01

M

H01M 2/08 (2006.01) H01M 8/04 (2006.01) H01M 8/10 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2585051

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 bipolar plates which have one or two reactant or coolant flow fields consisting of at least one groove in opposing surfaces of the bipolar plate. In certain preferred embodiments, the invention provides cassettes and stacks which are suitable for use in fuel cell applications. Particularly preferred embodiments of the invention include design improvements which enhance the performance and reliability of certain components of the fuel cell stack.

La présente invention concerne des cartouches à membrane et des empilements correspondants pouvant être utilisés dans une pluralité d'applications électrochimiques. L'invention concerne également des cartouches à membrane comprenant une ou plusieurs plaques bipolaires renfermant un ou deux champs d'écoulement de réactif ou de caloporteur sous la forme d'au moins une rainure ménagée dans des surfaces opposées de la plaque bipolaire. Dans certains modes de réalisation préférés, l'invention concerne des cartouches et des empilements pouvant être utilisés dans des applications de piles à combustible. Plus particulièrement, des modes de réalisation préférés de l'invention concernent des améliorations de conception permettant d'accroître la performance et la fiabilité de certains composants de l'empilement de piles à combustible.

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