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:
Jun. 03, 2014
Filed:
May. 09, 2012
Jung Hwan Park, Daejeon, KR;
Song Taek OH, Daejeon, KR;
Geun Chang Chung, Daejeon, KR;
Min Hee Lee, Daejeon, KR;
Juichi Arai, Seoul, KR;
Jung Hwan Park, Daejeon, KR;
Song Taek Oh, Daejeon, KR;
Geun Chang Chung, Daejeon, KR;
Min Hee Lee, Daejeon, KR;
Juichi Arai, Seoul, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Provided are a mixed cathode active material including layered structure lithium manganese oxide expressed as Chemical Formula 1 and a second cathode active material having a plateau voltage profile in a range of 2.5 V to 3.3 V, and a lithium secondary battery including the mixed cathode active material. The mixed cathode active material and the lithium secondary battery including the same may have improved safety and simultaneously, may be used in an operating device requiring the foregoing battery by widening a state of charge (SOC) range able to maintain power more than a required value by allowing the second cathode active material to complement low power in a low SOC range.