Plastic bonded electrodes in nickel cadmium batteries

The characteristics of nickel-cadmium batteries with plastic bonded electrodes are presented. The active materials, nickel hydroxide and cadmium oxide, are mixed with plastic powder and a solvent to form a thick paste. The paste is extruded or rolled into a strip, which is then laminated to current collectors of pure nickel or nickel-plated steel. The manufacturing process allows more efficient use of the costly raw materials, nickel and cadmium. Readily automated, this novel manufacturing process retains the cost competitiveness of the nickel-cadmium pocket plate. The charging characteristics and volumetric density of this type of battery are evaluated.<
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