Lead alloys for electric storage battery

Details Lead alloys for electric storage battery Lead alloys for electric storage battery

1979-05-23

1980-11-11

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75166C, 429245, H01M 3504

Patent

active

042330700

ABSTRACT:
A lead alkaline earth metal alloy comprising lead, calcium, barium or strontium or mixtures thereof in an amount of 0.075A/40% to 0.13A/40% by weight where A is the atomic weight of alkaline earth metal 0.005% to 0.05% magnesium and preferably 0.005% to 0.01% aluminium is disclosed and has improved corrosion resistance combined with tensile strength as compared to alloys with magnesium and aluminium contents outside these defined ranges.
The alloy is useful for grids in lead acid electric storage batteries.

REFERENCES:
patent: 1703212 (1929-02-01), Shoemaker
patent: 1804883 (1931-05-01), Mathesius et al.
patent: 1916496 (1933-07-01), Shoemaker
patent: 2031486 (1936-02-01), Kirebom
patent: 2142835 (1939-01-01), Betterton et al.
patent: 2159124 (1939-05-01), Betterton et al.
patent: 2210504 (1940-08-01), Shoemaker
patent: 2794707 (1957-06-01), Walsh
patent: 2860969 (1958-11-01), Walsh
patent: 3920473 (1975-11-01), Sims
patent: 4125690 (1978-11-01), Bagshaw et al.

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