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. 01, 2015
Filed:
Sep. 09, 2011
Sung Woo OH, Daejeon, KR;
Hee Young Sun, Gyeonggi-do, KR;
Yu Rim DO, Daejeon, KR;
Hyung Bok Lee, Seoul, KR;
Sung Woo Oh, Daejeon, KR;
Hee Young Sun, Gyeonggi-do, KR;
Yu Rim Do, Daejeon, KR;
Hyung Bok Lee, Seoul, KR;
SK INNOVATION CO., LTD., , KR;
Abstract
The present invention relates to a positive electrode active material for a lithium secondary battery having improved thermal stability, a method for producing the positive electrode active material, and a lithium secondary battery containing the same. The positive electrode active material may be represented by the following Chemical Formula 1 and contain particles having an average particle size of 200 nm to 1 μm, wherein the surfaces of the particles are coated with a uniform carbon coating layer.LiMnMPO  [Chemical Formula 1](Where, M is any one or a mixture of two or more selected from Mg, Fe, Co, Cr, Ti, Ni, Cu, Zn, Zr, Nb, and Mo, and a and x satisfy the following Equations: 0.9≦a≦1.1 and 0≦x<0.5.).