Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1984-10-17
1985-10-22
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 40, H01M 486
Patent
active
045488762
ABSTRACT:
An integrated current collecting electrode for a molten carbonate fuel cell includes a corrugated metal conductive strip positioned in contact with a catalyst layer. The corrugations of the metal strip form a plurality of gas channels immediately adjacent the surface of the catalyst through which a reactant gas flows. Each channel is filled with a particulate material to maintain separation between the metal strip and the catalyst in ensuring gas channel integrity. The catalyst may be in the form of a compacted, particulate material provided the particle size of the material within the gas channels is larger than that of the catalyst particles to prevent catalyst migration to the metal conductor and provide reactant gas access to the catalyst layer. The gas channels formed by the corrugations of the metal strip are arranged in an offset pattern along the direction of gas flow for improved reactant gas distribution to the catalyst layer. The particulate material positioned within the gas flow channels may be a ceramic conductor such as a perovskite or a spinel for enhanced current collection.
REFERENCES:
patent: 3394032 (1968-07-01), Danner
patent: 4125676 (1978-11-01), Maricle et al.
patent: 4159367 (1979-06-01), Berchielli et al.
patent: 4169917 (1979-10-01), Baker et al.
Fisher Robert J.
Glenn Hugh W.
Hightower Judson R.
The United States of America as represented by the United States
Walton Donald L.
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