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:
Dec. 21, 2004
Filed:
May. 22, 2002
Applicant:
Inventors:
Douglas J. Woodnorth, Needham, MA (US);
Peter B. Harris, Stow, MA (US);
Gregory A. Fariss, Poughkeepsie, NY (US);
Barbara Brys, Bedford, MA (US);
Assignee:
Duracell Inc., Bethel, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 6/08 ;
U.S. Cl.
CPC ...
H01M 6/08 ;
Abstract
A cathode that includes manganese dioxide and relatively small particles of nonsynthetic, nonexpanded graphite is disclosed. The graphite particles can have an average particle size of less than 20 microns. The cathode can be used in an electrochemical cell, such as a battery.