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:
Mar. 08, 2005

Filed:

Mar. 08, 2002
Applicants:

Stuart M. Davis, Norfolk, MA (US);

William L. Bowden, Nashua, NH (US);

Peter R. Moses, Windham, NH (US);

Thomas C. Richards, Harvard, MA (US);

Inventors:

Stuart M. Davis, Norfolk, MA (US);

William L. Bowden, Nashua, NH (US);

Peter R. Moses, Windham, NH (US);

Thomas C. Richards, Harvard, MA (US);

Assignee:

The Gillette Company, Boston, MA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G045/02 ; H01M004/50 ;
U.S. Cl.
CPC ...
Abstract

Particulate MnO, having simultaneously a micropore surface area greater than 8.0 m/g, desirably between about 8.0 and 13 m/g and BET surface area of between about 20 and 31 m/g within the context of an MnOhaving a total intraparticle porosity of between about 0.035 cm/g and 0.06 cm/g produces enhanced performance when employed as cathode active material in an electrochemical cell, particularly an alkaline cell. The average pore radius of the meso and macro pores within the MnO(meso-macro pore radius) is desirably greater than 32 Angstrom.


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