Abstract
The cyclic charge-discharge behaviour of sintered plate and planar cadmium electrodes has been studied using galvanostatic and potentiostatic sweep techniques. The cycling inefficiency of sintered electrodes reflected more the discharge process as shown by analytical monitoring of cadmium levels before and after charge. The effect of discharge rate on cycling efficiency was also investigated. Open-circuit recovery experiments indicated that a critical potential was reached at which passivation occurs subsequent to which a plateau region was observed for sintered electrodes. Potentiostatic sweeps on partially discharged electrodes and X-ray diffraction suggested the formation of a nickel-cadmium alloy during charge.
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