Maintenance-free battery

Details Maintenance-free battery Maintenance-free battery

1978-07-03

1979-08-28

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Having specified venting, feeding or circulation structure

Venting structure

429225, 429245, 75166R, 75166D, H01M 1006

Patent

active

041661559

ABSTRACT:
The present invention provides a maintenance-free battery having improved performance characteristics and utilizing a unique, hybrid combination of ternary alloys for the positive and negative grids. The positive grids are formed from a ternary, lead base alloy consisting essentially of lead, from about 1.0 to about 2.0% antimony and from about 1.2 to about 2.2% cadmium, the cadmium being present in an amount at least equal to the amount of antimony present; and the negative grids are formed from a ternary lead base alloy consisting essentially of lead, from 0.06 to about 0.20% calcium and from about 0.10 to about 0.40% tin, the percentages of each alloy being based on the alloy weight.

REFERENCES:
patent: 2159124 (1939-05-01), Bettertou et al.
patent: 3177096 (1965-04-01), Jache
Vinal, Storage Batteries, 3rd Edition, John Wiley and Sons, Inc., 1940, p. 19.

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