Gastight gasket assembly for gas channels of fuel cell stack

Details Gastight gasket assembly for gas channels of fuel cell stack Gastight gasket assembly for gas channels of fuel cell stack

H - Electricity

01

M

H01M 8/02 (2006.01) H01M 2/08 (2006.01) H01M 8/04 (2006.01) H01M 8/10 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2450855

A gasket assembly for gas channels of a fuel cell stack is disclosed. A central part of a bipolar plate of the fuel cell stack is formed with a plurality of channels which is connected to a gas passage via a collective channel and a plurality of communication channels. A reception region is formed across a middle section of the communication channels and a pressure resistant packing is mounted in the reception region, forming a smooth and flat plane with the ridges of the partitions outside the reception region. A gasket is mounted between the bipolar plate and the membrane electrode assembly and acts with the packing to form a gastight gasket assembly in the form of a dual gasket structure.

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