Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Patent
1990-04-10
1991-09-03
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
429 16, 429 35, 429 39, H01M 208, H01M 814
Patent
active
050454137
ABSTRACT:
A fully internally manifolded fuel cell stack is provided by each separator plate and electrolyte in the fuel cell stack having a plurality of aligned perforations forming gas manifolds extending for the length of the cell stack. Each perforation through the separator plate is surrounded by a flattened manifold wet seal structure extending to contact the electrolytes on each face of the separator plate to form separator plate/electrolyte wet seals under cell operating conditions. Conduits through the extended manifold wet seal structure provides gas communication between one set of manifolds and the anode chambers on one face of the separator plates and conduits through the extended manifold wet seal structure on the opposite face of the separator plates provides gas communication between the other set of the manifolds and the cathode chambers on the other face of the separator plates. Extended wet seal structures formed of thin plate metal provide limited flexibility and resiliency to assure good sealing. This structure provides fully internal manifolding of and separation of fuel and oxidant gases to each of the unit fuel cells in the fuel cell stack.
REFERENCES:
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Lawson Mark G.
Marianowski Leonard G.
Petri Randy J.
Institute of Gas Technology
Pauley Douglas H.
Skapars Anthony
Speckman Thomas W.
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