Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1998-06-08
1999-11-23
Bell, Bruce F.
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 18, 429 41, 429152, 429243, 429244, 296231, 296233, 29746, 29747, 29749, 156157, 156182, 156196, 156288, 1563041, H01M 810
Patent
active
059897414
ABSTRACT:
An electrochemical cell system including an anode compartment and a cathode compartment separated by a membrane and electrode structure. This structure has an anode surface with a plurality of anodes in a side-by-side arrangement exposed to the anode compartment and a cathode surface with a plurality of cathodes in a side-by-side arrangement exposed to the cathode compartment. The anodes and cathodes are separated by a layer of ion exchange polymer and register with each other so that opposing pairs of anodes and cathodes form cells. The membrane and electrode structure further includes a plurality of current collector screens. The current collector screens have an anode contact area in contact with the anode, a cathode contact area in contact with the cathode and a feed through area extending between cells and crossing from the anode contact area to the cathode contact area to connect the anode and cathode of adjacent cells. The invention provides a polymer electrolyte membrane electrochemical cell system which can be less complicated, lighter in weight and/or is easier to manufacture that existing stack designs.
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Banerjee Shoibal
Bloomfield David P.
Ferris James J.
Polevaya Olga Y.
Bell Bruce F.
E.I. Du Pont de Nemours and Company
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