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.

Date of Patent:
Apr. 22, 2003

Filed:

Jun. 29, 2000
Applicant:
Inventors:

Terrill B. Atwater, North Plainfield, NJ (US);

Louis E. Branovich, Howell, NJ (US);

Anthony G. Pellegrino, Middletown, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 1/040 ;
U.S. Cl.
CPC ...
H01M 1/040 ;
Abstract

This invention provides a number of phosphorous and arsenic reducing agents to eliminate gas formation and polymerization of Li/MnO and other lithium cells caused by the formation of dialcohol. The phosphorous reducing agents when added to the Li/MnO and other lithium battery electrolytes cause the phosphorous compound and alcohol to react and produce ether and orthophosphorous acid, which prevents gas formation and the polymerization of Li/MnO cells caused by the formation of dialcohol. The preferred reducing agent is phosphoric acid tri-ester. The arsenic reducing agents when added to the Li/MnO and other lithium battery electrolytes cause the arsenic compound and alcohol to react and produce ether and orthoarsenic acid, which also prevents gas formation and the polymerization of Li/MnO cells caused by the formation of dialcohol. Similar reactions and effects are also achieved with numerous other useful phosphorous and arsenic compounds that react with alcohol to produce ether and related acid compounds.


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