Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1997-05-29
1999-07-13
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 33, 429 45, H01M 812
Patent
active
059224860
ABSTRACT:
A multilayer fuel cell stack comprised of a plurality of fuel cell units each having an electrolyte layer interposed between an anode layer and a cathode layer, a pair of buffer layers, and an interconnect layer. The buffer layers are interposed between each of the electrodes (anode layer and cathode layer) and the interconnect layer to improve the electrical conductivity and mechanical bonding characteristics between layers. The buffer layers have the additional effect of physically separating the layers and preventing interdiffusion among chemically incompatible components during cosintering. The materials are selected for the layers such that the fuel cell units in the fuel cell stack are cosinterable at relatively low temperatures.
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Edwards R. J.
Kalafut Stephen
Marich Eric
The Dow Chemical Company
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