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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.:

US 9728772 B1

PDFFull Text
Date of Patent:
Aug. 08, 2017

Filed:

Mar. 31, 2014

Flooded lead-acid battery and method of making the same

Applicants:

Trojan Battery Company, Llc, Santa Fe Springs, CA (US);

Roy Duffy, Auckland, NZ;

Inventors:

Gordon Beckley, Grayson, GA (US);

Marvin C. Ho, Yorba Linda, CA (US);

Colin Smith, Grayson, GA (US);

Charles E. Snyder, Placentia, GA (US);

Assignee:

Trojan Battery Company, LLC, Santa Fe Springs, CA (US);

Attorney:

Arent Fox LLP

Primary Examiner:

Patrick Ryan

Assistant Examiner:

Julian Anthony

Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/56 (2006.01); H01M 4/58 (2010.01); H01M 4/57 (2006.01); H01M 4/82 (2006.01); H01M 6/00 (2006.01); H01M 4/14 (2006.01); H01M 4/20 (2006.01); H01M 4/36 (2006.01); H01M 4/48 (2010.01); H01M 4/73 (2006.01); H01M 10/06 (2006.01); H01M 4/68 (2006.01);
U.S. Cl.
CPC ...
H01M 4/14 (2013.01); H01M 4/20 (2013.01); H01M 4/364 (2013.01); H01M 4/48 (2013.01); H01M 4/56 (2013.01); H01M 4/73 (2013.01); H01M 10/06 (2013.01); H01M 4/685 (2013.01); H01M 2220/20 (2013.01); Y02P 70/54 (2015.11); Y02T 10/7016 (2013.01);
Abstract

Positive active material pastes for flooded deep discharge lead-acid batteries, methods of making the same and lead-acid batteries including the same are provided. The positive active material paste includes lead oxide, a sulfate additive, and an aqueous acid. The positive active material paste contains from about 0.1 to about 1.0 wt % of the sulfate additive. Batteries using such positive active material pastes exhibit greatly improved performance over batteries with conventional positive active material pastes.

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