Lead-acid storage battery

Details Lead-acid storage battery Lead-acid storage battery

1982-09-13

1983-11-15

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

204 21, H01M 1006

Patent

active

044156383

ABSTRACT:
Improvements in a dry charged lead-acid storage battery and in a method for producing such a battery are disclosed. The improvements in the battery involve negative plates having an initial polarization, when on charge, not greater than zero; preferably, the positive plates have an initial polarization, when on charge, of at least 100 millivolts, and most desirably, from 150 to 180 millivolts. The improvements in the method involve, for example, reducing the initial polarization of the negative plates by partial discharge thereof after formation or by air or chemical oxidation. The battery of the invention is protected from catastrophic positive grid corrosion upon activation and consequent premature failure in service without the necessity for conventional (high voltage) boost-charging at the time of installation into a conventional float charging system.

REFERENCES:
patent: 3652341 (1972-03-01), Halsall et al.
patent: 3733220 (1973-05-01), Cortese et al.
patent: 3834946 (1974-09-01), Amlie et al.

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