Fuel cell electrode and method of preparation

Details Fuel cell electrode and method of preparation Fuel cell electrode and method of preparation

1984-03-02

1986-01-07

Gron, Teddy S.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429115, 427123, 4271263, 4271266, 429 27, 429 41, 429 44, 429 45, 429218, 429223, 427236, H01M 486, H01M 490, H01M 496, B05D 512

Patent

active

H00000167

ABSTRACT:
A fuel cell having good resistance to compressive creep includes electrodes having a superstructure of porous electrically conductive foam with surface sections adjacent to opposing surfaces of an electrolyte matrix impregnated with electrode catalyst materials. The catalyst materials are affixed in sections contiguous to an inner major surface by sinter bonding, electrochemical bonding or restrictive interstitial spacing. The outer sections of the porous plaque thickness are reserved for gas distribution to the electrode catalyst. Oxidant and fuel gases can be separately manifolded into alternate sides of a fuel cell stack by sealing opposing edges of the porous plaques containing the anode material in one set of opposing side surfaces and sealing opposing edges of the porous plaque containing cathode material in alternate side surfaces of the stack.

REFERENCES:
patent: 3933520 (1976-01-01), Gay et al.
patent: 4129685 (1978-12-01), Damiano
patent: 4206270 (1980-06-01), Kunz et al.
patent: 4301218 (1981-11-01), Benczur-urmossy
patent: 4404267 (1983-09-01), Iacovangelo et al.
patent: 4407905 (1983-10-01), Takeuchi et al.
patent: 4411968 (1983-10-01), Reiser et al.
patent: 4448857 (1984-05-01), Iacovangelo

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