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. 15, 2020
Filed:
May. 19, 2014
Samsung Sdi Co., Ltd., Yongin-si, KR;
Ming-Zi Hong, Yongin-si, KR;
Do-Hyung Park, Yongin-si, KR;
Seon-Young Kwon, Yongin-si, KR;
Joong-Ho Moon, Yongin-si, KR;
Ji-Hyun Kim, Yongin-si, KR;
Han-Eol Park, Yongin-si, KR;
Min-Han Kim, Yongin-si, KR;
Myong-A Woo, Yongin-si, KR;
Ki-Hyun Kim, Yongin-si, KR;
Jong-Seo Choi, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A positive active material for a rechargeable lithium battery including a core including at least one selected from a nickel-based composite oxide represented by Chemical Formula 1 or a lithium manganese oxide represented by Chemical Formula 2; and a coating layer on a surface of the core and including a lithium metal oxide represented by Chemical Formula 3, the positive active material having a peak at a 2θ value of about 19° to about 22° and another peak at a 2θ value of about 40° to about 45° in an X-ray diffraction pattern using a CuKα ray, is disclosed. A method of preparing the same, and a rechargeable lithium battery including the same, are also disclosed.LiNiCoMnO  Chemical Formula 1LiMnO  Chemical Formula 2LiMO  Chemical Formula 3 In Chemical Formulae 1 to 3, x, y, a, b, c, and M are the same as in the detailed description.