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, 2016
Filed:
Nov. 05, 2013
Applicant:
Peking University, Beijing, CN;
Inventors:
Assignee:
Peking University, Beijing, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B 1/08 (2006.01); H01M 4/525 (2010.01); H01M 4/505 (2010.01); H01M 4/131 (2010.01); H01M 4/04 (2006.01); C01B 13/36 (2006.01); C01G 45/00 (2006.01); C01G 45/12 (2006.01); C01G 51/00 (2006.01); C01G 53/00 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01B 1/08 (2013.01); C01B 13/36 (2013.01); C01G 45/006 (2013.01); C01G 45/1228 (2013.01); C01G 51/006 (2013.01); C01G 51/50 (2013.01); C01G 53/006 (2013.01); C01G 53/50 (2013.01); H01M 4/0471 (2013.01); H01M 4/0497 (2013.01); H01M 4/131 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); C01P 2002/50 (2013.01); C01P 2002/52 (2013.01); C01P 2002/54 (2013.01); C01P 2002/72 (2013.01); C01P 2004/03 (2013.01); C01P 2006/11 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01); Y02E 60/122 (2013.01);
Abstract
The present application discloses boron-doped lithium rich manganese based materials for cathodes of lithium ion batteries. The disclosed cathode materials can be prepared by co-precipitation and sol-gel methods. The chemical formula of this cathode material is Li[LiMnCoNiB]O(a+b+c+d+x=1, a, b, x>0, c≧0, d≧0, c+d>0). Lithium ion batteries using these cathode materials show impressive improvements in performance and increased tap density at low level of boron doping. The co-precipitation method is particularly suitable for large-scale industrial production. The sol-gel method is simple and can produce fine and uniform particles.