Polymer electrolyte membrane fuel cell stack

Details Polymer electrolyte membrane fuel cell stack Polymer electrolyte membrane fuel cell stack

H - Electricity

01

M

H01M 8/02 (2006.01) H01M 8/04 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2581894

A fuel cell includes a stack of electrolyte membranes joined to one another to form an interior space and an exterior space. Fuel, such as hydrogen, is provided to the interior space. The electrolyte membranes are circular and joined to adjacent membranes at the outer perimeters to enclose the interior space. A stack of such membrane assemblies is provided on a shaft and is rotated within a housing to drive off byproduct water. The water is collected and recirculated by spraying over the fuel cell stack for cooling and hydration.

Pile à combustible comprenant une pile de membranes tenant lieu d'électrolyte assemblées les unes aux autres afin de former un espace intérieur et un espace extérieur. Le combustible, notamment de l'hydrogène, est acheminé vers l'espace intérieur. Les membranes sont circulaires et assemblées à des membranes adjacentes sur les pourtours externes afin d'envelopper l'espace intérieur. Une pile de tels ensembles de membranes se trouve sur un axe et tourne dans un boîtier pour dévier l'eau résiduelle. L'eau est recueillie et recirculée par évaporation sur la pile à combustible en vue de son refroidissement et de son hydratation.

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