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:
Feb. 10, 2015
Filed:
Mar. 20, 2007
Jens M Paulsen, Daejeon, KR;
Hong-kyu Park, Daejeon, KR;
Sun Sik Shin, Daejeon, KR;
Sinyoung Park, Daejeon, KR;
Hyeyun Cha, Daejeon, KR;
Jens M Paulsen, Daejeon, KR;
Hong-Kyu Park, Daejeon, KR;
Sun Sik Shin, Daejeon, KR;
Sinyoung Park, Daejeon, KR;
Hyeyun Cha, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Provided is a cathode material for a lithium secondary battery, comprising a heat-treated mixture of an oxide powder (a) represented by Formula I and an oxide powder (b) represented by Formula II, wherein a mixing ratio of the oxide powder (a):oxide powder (b) is in a range of 30:70 to 90:10, the oxide powder (a) is monolithic particles having a D50 of more than 10 μm, and the oxide powder (b) is agglomerated particles having a D50 of less than 10 μm, and heat treatment is carried out at a temperature of 400° C. or higher.LiCoO  (I)LiMO  (II)