Rsr Technologies, Inc.

Northstar Battery Company, LLC

David R Prengaman

Frank Albert Fleming

Timothy W Ellis

Andreas Siegmund

Frank A Fleming

A process of preparing a continuous cast lead-based alloy strip for use in the manufacture of a battery grid of a lead-acid battery, the process comprising mechanically deforming, at a deformation temperature in a range of about 15 to about 150&#xb0; C., a continuous cast lead-based alloy strip having a thickness of tthat is in a range that is from about 0.6 to about 2 mm to reduce the thickness of the strip to a thickness of tthat is in a range that is from about 0.4 to about 1.5 mm such that the reduction in thickness is in a range of about 10 to about 50%, wherein the lead-based alloy comprises lead and silver and is essentially free of calcium, and wherein the silver is at a concentration that is in a range of about 0.003 to about 0.015 weight percent.

Corrosion resistant positive grid for lead-acid batteries

A battery grid comprising a continuous cast and mechanically deformed lead-based alloy that comprises lead and silver and is essentially free of calcium, wherein the silver is at a concentration that is in a range of about 0.003 to about 0.015 weight percent, and has a predominant equiaxed grain structure that comprises grain sizes that are in a range of about 0.1 to about 5 microns. Other alloy constituents include bismuth at a concentration that is in a range of about 0.003 to about 0.002 weight percent and tin at a concentration that is in a range of about 0.2 to about 1.8 weight percent. A process for making strip of said alloy for use in manufacturing said grid. A battery comprising said grid.

A lead-acid battery grid made from a lead-based alloy containing, in addition to lead, tin at a concentration that is at least about 0.500%, silver at a concentration that is greater than 0.006%, and bismuth at a concentration that is at least about 0.005%, and, if calcium is present in the lead-based alloy, the calcium is at concentration that is no greater than about 0.010%.

Lead-tin-silver-bismuth containing alloy for positive grid of lead acid batteries

A lead calcium tin alloy to which cobalt has been added is described. The alloy is useful in the formation of anodes to be used in electrowinning cells. Electrowinning cells containing the cobalt alloys are particularly suited for electrowinning metals, such as copper, from sulfuric acid electrolytes. The cobalt-containing anodes improve the efficiency of oxygen evolution at the anode during electrowinning and reduce corrosion of the anode.

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Dallas, TX, United States of America

David R Prengaman