Prengaman, Raymond D.;

Low antimony alloy

Low antimony lead alloys suitable for use as grid material in maintenance-free high capacity lead acid batteries are disclosed. The alloys comprise 0.6 to 1.1 weight percent antimony, 0.06 to 0.25 weight percent arsenic, 0.1 to 0.4 weight percent tin, 0.06 to 0.11 weight percent copper, and the balance lead. A preferred alloy contains 0.8 weight percent antimony, 0.15 weight percent arsenic, 0.25 weight percent tin and 0.08 weight percent copper.

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I claim:

1. A lead alloy for use in lead-acid batteries consisting essentially of 0.6 to 1.1 weight percent antimony, 0.06 to 0.25 weight percent arsenic, 0.1 to 0.4 weight percent tin, 0.06 to 0.11 weight percent copper, and the balance lead.

2. The alloy of claim 1 containing 0.8 weight percent antimony, 0.15 weight percent arsenic, 0.25 weight percent tin and 0.08 weight percent copper.