Wet proofed conductive current collector for the electrochemical

Details Wet proofed conductive current collector for the electrochemical Wet proofed conductive current collector for the electrochemical

1979-01-02

1980-07-29

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 41, 429 42, H01M 810

Patent

active

042151830

ABSTRACT:
An electrochemical cell such as a fuel cell comprising an ion exchange membrane electrolyte and catalytic electrodes bonded to the surface of the membrane is provided with a wet proofed carbon paper current collector at the oxidizing electrode. The use of a wet proofed carbon paper current collector allows axial current collection from the bonded electrodes thereby avoiding the need for conductive screens directly in the bonded electrodes. The wet proofed carbon paper by virtue of its hydrophobic character prevents flooding of the electrode by the cell product water.

REFERENCES:
patent: 3134697 (1964-05-01), Niedrach
patent: 3297484 (1967-01-01), Niedrach
patent: 4017663 (1977-04-01), Breault

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