Densified edge seals for fuel cell components

Details Densified edge seals for fuel cell components Densified edge seals for fuel cell components

1981-07-27

1982-12-21

Ball, Michael W.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

428408, 429 44, 429185, H01M 200, H01M 488, B29C 2500, C01B 3100

Patent

active

043650082

ABSTRACT:
A porous fuel cell component, such as an electrode substrate, has a densified edge which forms an improved gas seal during operation when soaked with electrolyte. The edges are made from the same composition as the rest of the component and are made by compressing an increased thickness of this material along the edges during the fabrication process.

REFERENCES:
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patent: 4035551 (1977-07-01), Grevstad
patent: 4115528 (1978-09-01), Christner et al.
patent: 4115627 (1978-09-01), Christner et al.
patent: 4165349 (1979-08-01), Sandelli
patent: 4233369 (1980-11-01), Breault et al.
patent: 4245009 (1981-01-01), Guthrie
patent: 4269642 (1981-05-01), DeCasperis

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