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:
Dec. 01, 2009
Filed:
Mar. 09, 2006
Young Ki Lee, Kyoungsangbuk-do, KR;
Dong Hak Kwak, Kyoungsangbuk-do, KR;
Hui Chan Yun, Daegukwangyeok-si, KR;
Jong Seob Kim, Daejeonkwangyeok-si, KR;
Young Ki Lee, Kyoungsangbuk-do, KR;
Dong Hak Kwak, Kyoungsangbuk-do, KR;
Hui Chan Yun, Daegukwangyeok-si, KR;
Jong Seob Kim, Daejeonkwangyeok-si, KR;
Ecopro Co. Ltd., Cheongwon-gun, KR;
Abstract
Provided are a cathode active material for a non-aqueous electrolyte lithium secondary battery, a process for preparing the same and a lithium secondary battery comprising the same. The cathode active material for a non-aqueous electrolyte lithium secondary battery is represented by the formula LiNiMnCoMM'M″Owherein M, M′ and M″ are independently selected from the group consisting of Al, Mg, Sr, Ca, P, Pb, Y and Zr, and mixtures thereof, a is in a range of 0.9 to 1.05, 1−(v+w+x+y+z) is in a range of 0.685 to 0.745, v is in a range of 0.05 to 0.06, w is in a range of 0.20 to 0.24, and x+y+z is in a range of 0.005 to 0.015.