The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1999
Filed:
Dec. 23, 1998
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A lead-acid battery according to the invention contains an electrode grid structure that comprises dispersoid-containing lead having relatively high strength and good corrosion resistance. The dispersoid particles exemplarily are selected from the oxides, nitrides and carbides that are substantially insoluble in lead and in sulfuric acid of concentration suitable for use in a lead-acid battery. Significantly, the dispersoid-containing lead has average grain size of at least 20 .mu.m. In consequence of the relatively large grain size, the total length of grain boundaries exposed to electrolyte is relatively small, and corrosion resistance is improved. Exemplary techniques for forming the dispersoid-containing lead are disclosed.