System for the humidification of polymer electrolyte...

Details System for the humidification of polymer electrolyte... System for the humidification of polymer electrolyte...

H - Electricity

01

M

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

Patent

CA 2428657

A system for the humidification of polymer electrolyte membrane fuel cells, the system comprising a first layer and a second layer; wherein the first layer comprises a porous material (11) substantially coincident with a first surface of a polymer electrolyte membrane fuel cell (10); wherein the second layer comprises a non-absorbent material (12) substantially coincident with the first layer; and wherein perforations in the second layer allow air to flow through the first and second layers to a cathode (17) of the polymer electrolyte fuel cell.

L'invention concerne un système permettant l'humidification de piles à combustible comprenant une membrane polymère en guise d'électrolyte. Ce système comprend une première couche et une seconde couche. La première couche comprend un matériau (11) poreux qui coïncide sensiblement avec la première surface d'une pile (10) à combustible à membrane polymère, et la seconde couche comprend un matériau (12) non absorbant qui coïncide sensiblement avec la première couche. Des perforations formées dans la seconde couche permettent à l'air de circuler à travers la première et la seconde couche jusqu'à la cathode (17) de la pile à combustible à électrolyte polymère.

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