Bipolar separator plates for electrochemical cell stacks

Details Bipolar separator plates for electrochemical cell stacks Bipolar separator plates for electrochemical cell stacks

1997-01-24

2000-11-14

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 39, 429210, H01M 802

Patent

active

061467804

ABSTRACT:
The present invention provides a separator for electrochemical cells, comprising a gas barrier having an electrically conducting pathway extending therethrough and a porous, electrically conducting member in electrical contact with each side of the electrically conducting pathway. In another aspect of the invention, a separator for electrochemical cells is provided comprising a porous, electrically conducting sheet and a gas impermeable material disposed within a portion of the sheet to form a gas barrier. In yet another aspect of the invention, a separator for electrochemical cells is provided comprising two porous, electrically conducting sheets and an electrically conducting gas barrier disposed in electrical contact between the sheets.

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