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. 17, 2014
Filed:
May. 09, 2012
Jung Hwan Park, Daejeon, KR;
Song Taek OH, Daejeon, KR;
Geun Chang Chung, Daejeon, KR;
Su Hwan Kim, Daejeon, KR;
Juichi Arai, Seoul, KR;
Jung Hwan Park, Daejeon, KR;
Song Taek Oh, Daejeon, KR;
Geun Chang Chung, Daejeon, KR;
Su Hwan Kim, Daejeon, KR;
Juichi Arai, Seoul, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Provided are a mixed cathode active material including lithium manganese oxide expressed as Chemical Formula 1 and a stoichiometric spinel structure LiMnOhaving 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 material and the lithium secondary battery including the same may have improved safety and simultaneously, power may be maintained more than a required value by allowing LiMnOto complement low power in a low state of charge (SOC) range. Therefore, a mixed cathode active material able to widen an available SOC range and a lithium secondary battery including the mixed cathode active material may be provided and properly used in a plug-in hybrid electric vehicle (PHEV) or electric vehicle (EV).