Abstract
The oxygen recombination (reduction) rate on plastic-bonded cadmium electrodes in sealed NiCd systems can be increased by using metal screens applied to the gas side of the plastic-bonded cadmium electrode. The metal screen applied should have an optimum geometry (mesh size, wire diameter) to provide optimum conditions for the existence of a uniform electrolyte film covering the total screen surface. The oxygen recombination rate in such a case is high enough to enable this type of cadmium electrode to be used in practical sealed cells. No major differences between steel and nickel screens were noticed, but with a silver plated screen a substantially enhanced oxygen recombination rate was observed.
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