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:
Jan. 08, 2019
Filed:
Dec. 03, 2014
Lg Chem, Ltd., Seoul, KR;
Byung Chun Park, Daejeon, KR;
Seong Hoon Kang, Daejeon, KR;
Minsuk Kang, Daejeon, KR;
Wang Mo Jung, Daejeon, KR;
Ho Suk Shin, Daejeon, KR;
Sang Min Park, Daejeon, KR;
Geungi Min, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed are a cathode active material including a lithium transition metal oxide based on at least one transition metal selected from the group consisting of Ni, Mn and Co, wherein at least one hetero element selected from the group consisting of Ti, Co, Al, Cu, Fe, Mg, B, Cr, Bi, Zn and Zr is located at a surface portion of or inside the lithium transition metal oxide, and a secondary battery including the same. The cathode active material according to the present invention includes predetermined hetero elements at a surface thereof and therein, and, as such, a secondary battery based on the cathode active material may exhibit excellent high-speed charge characteristics and lifespan characteristics.