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. 21, 2025
Filed:
Nov. 19, 2019
Lg Chem, Ltd., Seoul, KR;
Byung Hyun Hwang, Daejeon, KR;
Song Yi Yang, Daejeon, KR;
Seong Bae Kim, Daejeon, KR;
Woo Hyun Kim, Daejeon, KR;
Sun Sik Shin, Daejeon, KR;
Eun Hee Lee, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
A positive electrode active material is provided, including a lithium transition metal oxide containing nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium transition metal oxide has 60 mol % or more nickel (Ni) with respect the total number of moles of transition metal except lithium, and is doped with at least any one doping element selected from the group consisting of B, Zr, Mg, Ti, Sr, W, and Al. The positive electrode active material has an average particle diameter (D) of 4 μm to 10 μm after rolling at a rolling density of 3.0 g/cmto 3.3 g/cmand has the form of a single particle. A method of preparing the positive electrode active material, a positive electrode including the positive electrode active material, and a lithium secondary battery are also provided.