Sheet metal bipolar plate design for polymer electrolyte...

Details Sheet metal bipolar plate design for polymer electrolyte... Sheet metal bipolar plate design for polymer electrolyte...

H - Electricity

01

M

H01M 8/02 (2006.01) H01M 8/04 (2006.01)

Patent

CA 2350783

A separator plate for a polymer electrolyte membrane fuel cell stack constructed of at least two coextensive sheet metal elements (30, 31) shaped to promote the distribution of reactant gases to the electrodes of the fuel cell units of the fuel cell stack. The coextensive sheet metal elements are nestled together and form a coolant flow space (32) therebetween.

L'invention concerne une plaque de séparation destinée à un empilement de piles à combustible à membrane polymère pour électrolyte et constituée d'au moins deux éléments (30, 31) de feuille métallique, dont un est situé dans le prolongement de l'autre, qui possèdent une forme favorisant la distribution des gaz de réaction en direction des électrodes de l'empilement de piles à combustible. Les éléments de feuille métallique s'imbriquent l'un dans l'autre et forment entre eux un espace (32) d'écoulement pour liquide de refroidissement.

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