Bipolar plates for fuel cell and fuel cell comprising same

Details Bipolar plates for fuel cell and fuel cell comprising same Bipolar plates for fuel cell and fuel cell comprising same

H - Electricity

01

M

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

Patent

CA 2349934

The invention concerns a bipolar plate (7) for fuel cell comprising on at least one of its surfaces at least one groove (15) capable of forming with the surface of an adjacent electrode (13) at least a gas feeding channel, wherein said feeder channel has a form or shape such that it enables to move the liquid away from the diphasic flow circulating in said channel of said electrode surface. The invention also concerns a method for preparing such a bipolar plate and a fuel cell comprising at least one of said bipolar plates.

Plaque bipolaire (7) pour pile à combustible comprenant sur au moins l'une de ses faces au moins une cannelure (15) susceptible de former avec la surface d'une électrode (13) adjacente au moins un canal de distribution de gaz, dans laquelle ledit canal de distribution a une forme ou géométrie telle qu'elle permette d'éloigner le liquide de l'écoulement diphasique circulant dans ledit canal de ladite surface d'électrode. Procédé de préparation d'une telle plaque bipolaire et à une pile à combustible comprenant au moins une de ces plaques bipolaires.

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