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. 10, 2009

Filed:

Jun. 01, 2001
Applicants:

Frank H. Feddrix, Westlake, OH (US);

Scott W. Donne, Garden Suburb, AU;

Martin Devenney, Mountain View, CA (US);

Alexander Gorer, San Jose, CA (US);

Inventors:

Frank H. Feddrix, Westlake, OH (US);

Scott W. Donne, Garden Suburb, AU;

Martin Devenney, Mountain View, CA (US);

Alexander Gorer, San Jose, CA (US);

Assignee:

Eveready Battery Company, Inc., St. Louis, MO (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/50 (2006.01);
U.S. Cl.
CPC ...
Abstract

An active manganese dioxide electrode material that exhibits improved electrochemical performances compared with conventional manganese dioxide materials includes at least one dopant. The doped manganese dioxide electrode materials may be produced by a wet chemical method (CMD) or may be prepared electrolytically (EMD) using a solution containing manganese sulfate, sulfuric acid, and a dopant, wherein the dopant is present in an amount of at least about 25 ppm.


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