Membrane electrochemical cell provided with gas diffusion electr

Details Membrane electrochemical cell provided with gas diffusion electr Membrane electrochemical cell provided with gas diffusion electr

1997-06-24

2000-02-08

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 27, 429 30, 429 41, 429 42, 429210, H01M 200, H01M 810, H01M 648

Patent

active

06022634&

ABSTRACT:
The present invention refers to an electrochemical cell or stack of cells comprising two end-plates (7), bipolar plates (1) made of metal or metal alloy, gas permeable metal distributors (2), metal current collectors(3), gasket frames (4) provided with channels for feeding the gaseous reactants and discharging the excess reactants and condensates, a couple of gas diffusion electrodes, (5), an ion-exchange membrane (6), wherein said current conductors provide for a highly distributed segmented contact area on the electrode surface without isolated peaks and have an extremely smooth surface without asperities and at the same time porous and permeable to the gas flow.

REFERENCES:
patent: 4732660 (1988-03-01), Plowman et al.
patent: 4876115 (1989-10-01), Raistrick
patent: 5460705 (1995-10-01), Murphy et al.
patent: 5482792 (1996-01-01), Faita et al.
patent: 5635039 (1997-06-01), Cisar et al.

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