Dry floc method for making an electrochemical cell electrode

Details Dry floc method for making an electrochemical cell electrode Dry floc method for making an electrochemical cell electrode

H - Electricity

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H01M 4/88 (2006.01) B05D 1/16 (2006.01) H01M 4/96 (2006.01) B05D 3/04 (2006.01)

Patent

CA 1120999

DRY FLOC METHOD FOR MAKING AN ELECTROCHEMICAL CELL ELECTRODE ABSTRACT OF THE DISCLOSURE A method for making an electrochemical cell electrode involves depositing a layer of dry carbon/hydrophobic polymer floc powder on the surface of a substrate by dispersing the powder as a cloud in a chamber over the substrate and pulling the powder onto the substrate by drawing a vacuum under the substrate. The electrode is subsequently compacted and sintered. Typically the carbon component of the floc is catalyzed, such as with platinum, Thus, the method is for applying a catalyst layer on an electrode substrate. The method is particularly adapted to the high speed manufacture of electrodes.

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