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:
Jul. 02, 1996
Filed:
Aug. 22, 1995
Applicant:
Inventors:
Stuart M Davis, Norfolk, MA (US);
Christopher P Haines, Westford, MA (US);
Alexander A Leef, Waltham, MA (US);
Peter R Moses, Windham, NH (US);
Assignee:
Duracell Inc., Bethel, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
429224 ; 429229 ; 429206 ;
Abstract
The invention relates to alkaline cells containing manganese dioxide cathode active material. A substance selected from the group of compounds CaWO.sub.4, MgTiO.sub.3, BaTiO.sub.3, CaTiO.sub.3, ZnMn.sub.2 O.sub.4, and Bi.sub.12 TiO.sub.20 is added to the cathode of conventional alkaline cells typically having an anode comprising zinc and cathode comprising manganese dioxide and an alkaline electrolyte. The additive increases the service life of the cell.