Bipolar separator for electrochemical cells and method of prepar

Details Bipolar separator for electrochemical cells and method of prepar Bipolar separator for electrochemical cells and method of prepar

1978-01-30

1980-04-08

Mack, John H.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204295, 204290R, 204291, 429210, 429253, C25B 900, C25B 1304, H01M 214

Patent

active

041971787

ABSTRACT:
An improved bipolar separator for electrochemical cells comprising a molded aggregate of an electrically conductive powdered material and a powdered thermosetting resin in a weight ratio of 1:1 to 9:1 and having a resistivity coefficient, in the direction perpendicular to the major surfaces of the separator, of less than 0.3.OMEGA. cm and having the entire surface exposed to the anolyte, except the area of electrical contact with the anode, coated with a layer of a chemically resistant and electrically non-conductive thermosetting resin and electrochemical cells containing the said bipolar separator and method of producing the said bipolar separator.

REFERENCES:
patent: 3134697 (1964-05-01), Niedrach
patent: 3702267 (1972-11-01), Grot
patent: 4024036 (1977-05-01), Nakamura et al.
patent: 4039409 (1977-08-01), La Conti et al.
patent: 4057379 (1977-11-01), Campbell
patent: 4118294 (1978-10-01), Pellegri

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