Fuel cell design based on a framed bipolar plate

Details Fuel cell design based on a framed bipolar plate Fuel cell design based on a framed bipolar plate

H - Electricity

01

M

H01M 8/24 (2006.01) H01M 8/02 (2006.01)

Patent

CA 2729284

This disclosure related to polymer electrolyte member fuel cells and components thereof. A fuel cell comprises an electrochmical package (5), a porous spacer (4), a second bipolar plate (2) having arrays of protrusions in its center portion, and a first bipolar plate (1) interposed between a first gasket (31) and a second gasket (32). The first bipolar plate (1) is a flat metal plate, but it can also be a non-flat plate that forms a space when placed against a flat surface, for example, one with undulating ridges and valleys, or with arrays of protrusions.

Cette invention porte sur des piles à combustible à électrolyte polymère et sur des composants de celles-ci. Une pile à combustible comprend un boîtier électrochimique (5), un espaceur poreux (4), une seconde plaque bipolaire (2) comprenant des groupements de saillies dans sa partie centrale, et une première plaque bipolaire (1) intercalée entre un premier joint (31) et un second joint (32). La première plaque bipolaire (1) est une plaque métallique plate, mais elle peut également être une plaque non plate qui forme un espace lorsqu'elle est placée contre une surface plate, par exemple, une surface comportant des nervures et des creux ondulés, ou des groupements de saillies.

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