Electrochemical cell provided with ion exchange membranes and bi

Details Electrochemical cell provided with ion exchange membranes and bi Electrochemical cell provided with ion exchange membranes and bi

1994-04-13

1996-01-09

Niebling, John

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 32, 429 34, H01M 800, H01M 220

Patent

active

054827922

ABSTRACT:
A membrane electrochemical cell, in particular a fuel cell, of an improved type comprising a multiplicity of cell elements, each element made up of bipolar plates, current collectors, electrodes and membranes, wherein the function of electric current transmission through the cell elements, the release of heat towards the outside environment, the distribution of electric current to the electrodes and membranes, the removal of heat from the electrodes and membranes and the distribution of the reactants and products are performed by distinct components, in particular bipolar plates for the first two and porous electroconductive collectors for the others. The bipolar plates may have flat surfaces without grooves and are preferably manufactured with aluminum, titanium or alloys thereof, through cheap mass productions techniques; the bipolar plates are used together with collectors provided with deformability, residual resiliency and high porosity. Said collectors advantageously act also as distributors of the gaseous reactants and of the products.

REFERENCES:
patent: 4340452 (1982-07-01), de Nora
patent: 4826741 (1989-05-01), Aldhart et al.

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