Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1989-09-12
1990-12-18
Kalafut, Stephen J.
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
H01M 804
Patent
active
049785893
ABSTRACT:
A conventional fuel cell comprises a plurality of cell elements stacked via separator plates, each cell element comprising an electrolyte plate, and cathode and an anode which sandwich the electrolyte plate. A power generation part of the fuel cell is defined by the electrolyte plate, cathode and an anode. Oxidizing gas and fuel gas are supplied to each cell element in the same direction but the direction is opposite the gas flow of an adjacent cell element. In the improvement, preheating devices are provided next to the power generation part as a part of the fuel cell in the direction gases flow, in a manner such that both incoming and outgoing gases pass through the preheating device. The preheating device includes a plurality of heat exchange promoting elements in the form of projections provided on both faces of the separator plate.
REFERENCES:
patent: 3321334 (1967-05-01), Palmer
patent: 4407904 (1983-10-01), Uozumi et al.
patent: 4670359 (1987-06-01), Beshty et al.
patent: 4769298 (1988-09-01), Hosaka
Shimizu Toru
Shiozawa Shoji
Blackstone, Jr. R. A.
Ishikawajima-Harima Heavy Industries Co. Ltd.
Kalafut Stephen J.
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