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The charging of large lead-acid batteries with gelled electrolyte

Journal Article · · Proc. - Electrochem. Soc.; (United States)
OSTI ID:5391200
Charge voltage limits recommended for recharging lead-acid batteries with gelled electrolyte are as low as 2.32-2.35V/cell. Gelled-acid batteries will retain capacity over many cycles when recharged to these voltages. In contrast, similar lead-acid batteries with liquid electrolyte require voltage limits of 2.5 to 2.67 to maintain capacity. The main factor which permits the recharging of gelled-acid batteries at such low voltages is the depolarization of the negative electrode by the oxygen recombination reaction. The gelled acid may also play a role in facilitating the conversion of lead sulfate to lead dioxide. The lower voltages required for the gelled batteries result in less water loss and lower operating temperatures.
Research Organization:
Johnson Controls Inc. Milwaukee WI
OSTI ID:
5391200
Journal Information:
Proc. - Electrochem. Soc.; (United States), Journal Name: Proc. - Electrochem. Soc.; (United States) Vol. 84-14; ISSN PESOD
Country of Publication:
United States
Language:
English