Porous diaphragm for electrochemical cell

Details Porous diaphragm for electrochemical cell Porous diaphragm for electrochemical cell

C - Chemistry, Metallurgy

25

B

204/157, 204/191

C25B 15/08 (2006.01) C25B 9/16 (2006.01) C25B 11/03 (2006.01) C25B 13/02 (2006.01)

Patent

CA 1293951

73430-8 ABSTRACT The invention relates to porous, substantially uniform electrolyte flow rate producing diaphragm and electrode assembly for use in electrochemical cells, said diaphragm contacting at least one electrode characterized as porous and self-draining, said diaphragm comprising a plurality of layers of a microporous polyolefin film or a plurality of layers of a composite comprising said microporous polyolefin film and a support fabric, said sup- port fabric being laminated to said microporous polyolefin film, wherein portions of said diaphragm which are exposed to the full head of said aqueous solution as compared with portions of said diaphragm which are exposed to little or no head of said aqueous solution pass substantially the same amount of said aqueous solution to said electrode.

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