Fuel cell electrode substrate incorporating separator as an inte

Details Fuel cell electrode substrate incorporating separator as an inte Fuel cell electrode substrate incorporating separator as an inte

1985-04-01

1987-05-12

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Having earth feature

429 34, 429 39, 429 45, H01M 496

Patent

active

046649883

ABSTRACT:
Disclosed herein is an electrode substrate for fuel cells comprising two porous, carbonaceous layers, each having a number of elongated holes for feeding reactant gases into a fuel cell which are provided near the center of the thickness in said layer, and a gas impermeable, carbonaceous separator, interposed between said layers and having a number of elongated holes for flowing coolant which are provided near the center of the thickness in the separator. The porous layer is either a uniformly porous, carbonaceous monolayer, or has a two-layer structure comprising a more porous layer, a less porous layer and elongated holes for feeding reactant gases provided between said more porous layer and said less porous layer, the less porous layer having a bulk density larger than that of the more porous layer. There are also provided according to the invention processes for preparing such an electrode substrate for fuel cells.

REFERENCES:
patent: 3964930 (1976-06-01), Reiser
patent: 3990913 (1976-11-01), Tuschner
patent: 4157327 (1979-06-01), Martin et al.
patent: 4169917 (1979-10-01), Baker et al.
patent: 4233369 (1980-11-01), Breault et al.
patent: 4324844 (1982-04-01), Kothmann
patent: 4345009 (1982-08-01), Fahle et al.
patent: 4489142 (1984-12-01), Chi et al.

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