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:
Aug. 11, 2015
Filed:
Sep. 09, 2010
Applicants:
Ya-dong LI, Beijing, CN;
Xiao-ling Xiao, Beijing, CN;
Jun LU, Beijing, CN;
Inventors:
Assignees:
Tsinghua University, Beijing, CN;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/88 (2006.01); H01M 4/13 (2010.01); H01M 4/505 (2010.01); C01G 45/12 (2006.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); C01G 45/1242 (2013.01); C01P 2002/32 (2013.01); C01P 2002/72 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/32 (2013.01); C01P 2004/34 (2013.01); C01P 2004/61 (2013.01); Y02E 60/122 (2013.01);
Abstract
A method for preparing a spinel type lithium manganese oxide cathode active material, includes providing a number of manganese dioxide hollow spheres and a lithium source powder, mixing the manganese dioxide hollow spheres and the lithium source powder in a liquid medium to achieve a mixture, drying the mixture to remove the liquid medium to achieve a precursor, and sintering the precursor at a sintering temperature of about 600° C. to about 800° C. for about 3 hours to about 10 hours, to achieve a number of spinel type lithium manganese oxide hollow spheres.