PROCESS AND APPARATUS FOR CHARGING ALKALINE MANGANESE DIOXIDE AND ZINC ACCUMULATORS

摘要

Each period of charging current (Ich) consists of a charging and discharging portion. The charging portion comprises a constant bias current onto which is superimposed a number of steep narrow current pulses. The ressistance-free battery voltage is measured each period and the time delay between charging pulses is decreased as the voltage increases. - The shorter discharge portion comprises a discharge bias current with discharging pulses displaced by a delay followed by a time when the battery is unloaded so that its voltage may be sensed.