Electric Power Research Institute Incorporated

Calman Herscovici

Allen Charkey

Anthony Leo

Novel porous and porous/nonporous composites useful as electrodes in electrochemical cells and methods for making same are provided. The porous composites comprise a pressure-molded composite of carbon particles and thermoplastic resin particles which have a particle size distribution of 0 to 45 .mu.m. The pores are formed by dry mixing a water-leachable salt with a pore size distribution of 5 to 200 .mu.m with the carbon and resin mixture and water extracting the salt to form the porous composite.

Porous and porous-nonporous composites for battery electrodes

Novel bipolar electrodes for electrochemical cells and methods for making same are provided. The bipolar electrodes comprise a pressure-molded composite of heat-treated graphite particles having a particle size distribution of 0 to 45 .mu.m and thermoplastic resin particles. The graphite and resin in the composite are in a weight ratio of from 1:5 to 1:1 and are formed by pressure-molding at 400 kg/cm.sup.2 or higher at 190.degree. C.

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Chappaqua, NY, United States of America

Calman Herscovici