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. 22, 2014
Filed:
Jan. 17, 2008
Applicants:
Jens Martin Paulsen, Fort Saskatchewan, CA;
Thomas Lau, Edmonton, CA;
Inventors:
Jens Martin Paulsen, Fort Saskatchewan, CA;
Thomas Lau, Edmonton, CA;
Assignee:
Umicore, Brussels, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a cathode active material and a method to produce the same at low cost. The cathode powder comprises modified LiCoO, and possibly a second phase which is LiM'Owhere M′ is Mn, Ni, Co with a stoichiometric ratio Ni:Mn≧1. The modified LiCoOis Ni and Mn bearing and has regions of low and high manganese content, where regions with high manganese content are located in islands on the surface. The cathode material has high cycling stability, a very high rate performance and good high temperature storage properties.