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:
Apr. 29, 2014
Filed:
Apr. 19, 2012
Sung Kyun Chang, Daejeon, KR;
Hong-kyu Park, Daejeon, KR;
Sunkyu Kim, Seongnam-si, KR;
Sinyoung Park, Daejeon, KR;
Young Hwa Jung, Daejeon, KR;
Geun-chang Chung, Daejeon, KR;
Keun Wan an, Daejeon, KR;
Soo Min Park, Daejeon, KR;
Ji Eun Lee, Daejeon, KR;
Sung kyun Chang, Daejeon, KR;
Hong-Kyu Park, Daejeon, KR;
Sunkyu Kim, Seongnam-si, KR;
Sinyoung Park, Daejeon, KR;
Young Hwa Jung, Daejeon, KR;
Geun-Chang Chung, Daejeon, KR;
Keun Wan An, Daejeon, KR;
Soo Min Park, Daejeon, KR;
Ji Eun Lee, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Disclosed herein is a cathode active material for a secondary battery, which includes a combination of one or more selected from compounds represented by Formula 1, one or more selected from compounds represented by Formula 2, and one or more selected from compounds represented by Formula 3,(1-s-t)[Li(LiMnNiCo)O]*s[LiCO]*t[LiOH]  (1)Li(LiMnO  (2)(1-u)LiFePO*uC  (3)In these formulae 0<a<0.3; 0<x<0.8; 0>y>0.6; 0<s<0.05; 0<t<0.05; 0<b<0.3; 0.01<u<0.1, wherein a, b, x and y denote mole ratios; and s, t and u denote weight ratios. The disclosed cathode active material has long lifespan and storage characteristics at room temperature and/or high temperature and excellent safety, and is effectively used to fabricate a non-aqueous electrolyte type high power lithium secondary battery having excellent rate properties and power characteristics.