Accession Number : AD0670733

Title :   EFFECTS OF CONSTANT-CURRENT REVERSALS DURING CHARGE OF THE SILVER OXIDE ELECTRODE,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Wales,Charles P.

Report Date : 01 MAY 1968

Pagination or Media Count : 20

Abstract : The sintered silver electrodes used in storage batteries were charged by a constant current, interrupted by periodic constant-current discharge. A large capacity increase was obtained when the charge current was reversed for 15 min out of every 60 min during a charge at the 20-hr rate, but this method greatly increased the total time required for a charge. Capacity could be improved a smaller amount, without charge time becoming excessive, by partly discharging the silver electrodes the first one or two times that the potential reached a chosen value near the end of a charge. In general, capacity improvement decreased as KOH concentration increased. Commercial silver-zinc cells always gave less improvement than the test cells. (Author)

Descriptors :   (*ALKALINE BATTERIES, ELECTRODES), (*ELECTRODES, SILVER COMPOUNDS), OXIDES, STORAGE BATTERIES, ELECTRIC DISCHARGES, BATTERY CHARGERS

Subject Categories : Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE