Gould Inc.

Gnb Incorporated

Gnb Battery Technologies Inc.

Frederick L Marsh

Purushothama Rao

George W Mao

Francis M Dunlevey

A co-doped lead oxide for use in the manufacture of storage battery plates, the use of such lead oxides improving the efficiency of lead-acid batteries, comprising, as co-dopants, based upon the total weight of the lead oxide, copper in an amount of from about 0.01 to 0.1% and either tin in an amount of from about 0.008 to 0.1% or antimony in an amount of from about 0.005 to 0.08%.

Lead oxide composition for use in lead-acid batteries

A method for preparing lead-acid battery positive and negative plates for use in lead-acid batteries, comprising (a) providing battery grids, (b) applying wet leady oxide paste to the grids to form plates, (c) optionally wrapping the freshly pasted plates with an absorbent material, and (d) initiating formation of the lead-acid battery plates while the plates contain more than about 5 wt. % free lead in the paste and are generally damp from moisture existing in the paste from the time of plate pasting. Although conventional curing and drying of the plates is obviated and the plate formation is initiated merely hours after plate pasting, instead of a day or more after plate pasting as is the case with conventional battery plate processing, the cells and batteries containing plates prepared in accordance with the present invention exhibit a mechanical strength and deliver an overall electrical performance equivalent or superior to cells and batteries containing conventionally prepared plates.

Method of preparing lead-acid battery plates and lead-acid batteries

A lead oxide for use in making an active material for pasted lead-acid battery plates comprises a doped lead oxide, the dopant preferably being copper in an amount of about 0.01 to about 0.07 percent based upon the total weight of the lead oxide. The use of such a doped oxide imparts to the resulting battery improvement in various of the electrical performance characteristics such as, for example, internal resistance, capacity, cycle life and the like.

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Fridley, MN, United States of America

Frederick L Marsh