Process for forming integral edge seals in porous gas...

Details Process for forming integral edge seals in porous gas... Process for forming integral edge seals in porous gas...

H - Electricity

01

M

319/1

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

Patent

CA 1210805

PATENT APPLICATION PAPERS OF HAIM FEIGENBAUM & SHELDON PUDICK FOR: A PROCESS FOR FORMING INTEGRAL EDGE SEALS IN POROUS GAS DISTRIBUTION PLATES UTILIZING A VIBRATORY MEANS ABSTRACT OF THE DISCLOSURE A process for forming an integral edge seal in a gas distribution plate for use in a fuel cell. A seal layer is formed along an edge of a porous gas distribution plate by impregnating the pores in the layer with a material adapted to provide a seal which is operative dry or when wetted by an electrolyte of a fuel cell. Vibratory energy is supplied to the sealing material during the step of impregnating the pores to provide a more uniform seal throughout the cross section of the plate.

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