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:
Nov. 15, 2005
Filed:
Apr. 27, 2001
Applicants:
Zhonghua LU, Halifax, CA;
Jeffrey R. Dahn, Hubley, CA;
Inventors:
Zhonghua Lu, Halifax, CA;
Jeffrey R. Dahn, Hubley, CA;
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M004/50 ;
U.S. Cl.
CPC ...
Abstract
A cathode composition for a lithium-ion battery having the formula Li[MMn]Owhere 0<x<1 and Mrepresents one or more metal elements, with the proviso that Mis a metal element other than chromium. The composition is in the form of a single phase having an O3 crystal structure that does not undergo a phase transformation to a spinel crystal structure when incorporated in a lithium-ion battery and cycled for 100 full charge-discharge cycles at 30° C. and a final capacity of 130 mAh/g using a discharge current of 30 mA/g.