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:
Mar. 24, 2015
Filed:
Nov. 16, 2011
Applicants:
Joon-hyung Lee, Yongin-si, KR;
Andriy Kvasha, Yongin-si, KR;
Oleg Levin, Yongin-si, KR;
Inventors:
Assignee:
Samsung SDI Co., Ltd., , KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 4/13 (2010.01); H01M 4/58 (2010.01); H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/5825 (2013.01); H01M 4/131 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/624 (2013.01); H01M 4/525 (2013.01); H01M 10/052 (2013.01); Y02E 60/122 (2013.01);
Abstract
A positive active material for a lithium secondary battery comprises a core comprising a compound that can reversibly intercalate and deintercalate lithium; and a compound attached to the surface of the core and represented by Chemical Formula 1:LiM(I)M(II)SiPO,  [Chemical Formula 1] wherein M(I) and M(II) are selected from the group consisting of Al, Zr, Hf, Ti, Ge, Sn, Cr, Nb, Ga, Fe, Sc, In, Y, La, Lu, and Mg, and 0<x≦0.7, 0≦y≦1.