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:
Sep. 12, 2017
Filed:
Sep. 24, 2014
Lg Chem, Ltd., Seoul, KR;
Hyeokmoo Lee, Daejeon, KR;
Jae Hyun Lee, Daejeon, KR;
Su Rim Lee, Daejeon, KR;
Song Taek Oh, Daejeon, KR;
JungSeok Choi, Daejeon, KR;
Ji Hye Park, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed are a cathode active material for high voltage lithium secondary batteries and a lithium secondary battery including the same and, more particularly, the present invention relates to a cathode active material for lithium secondary batteries that includes a lithium transition metal oxide having a lithium molar fraction of greater than 1, containing a relative excess of nickel, and having a composition represented by Formula 1 below, wherein the lithium transition metal oxide has a LiMnO-like structure phase:LiNiCoMnMOA  (1)