Low maintenance lead-acid batteries for energy storage
A line of low-maintenance lead-acid batteries suitable for both deep- and shallow-cycle applications has been developed. When deep-cycled on a daily basis, these batteries need water addition every 100-125 cycles compared to every 5-10 cycles in the case of conventional industrial batteries. The low-maintenance characteristic is achieved by the use of a positive grid alloy that contains only 1.5% Sb coupled with an Sb-free negative grid alloy. This hybrid grid alloy combination has all of the advantages of an Sb-free combination (low gassing on overcharge, stable gassing characteristics over life, excellent capacity retention on open-circuit stand) and none of the disadvantages (low active material utilization, relatively poor deep-cycle performance). The features of this new low-maintenance battery are discussed with emphasis on grid alloys and charge characteristics. 7 refs.
- Research Organization:
- Gould Lab, Rolling Meadows, Ill
- OSTI ID:
- 5083103
- Journal Information:
- J. Energy; (United States), Journal Name: J. Energy; (United States) Vol. 5:3; ISSN JENED
- Country of Publication:
- United States
- Language:
- English
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