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:
May. 28, 2024
Filed:
Jan. 12, 2021
Lg Energy Solution, Ltd., Seoul, KR;
Seul Ki Chae, Daejeon, KR;
Dae Jin Lee, Daejeon, KR;
Dong Hwi Kim, Daejeon, KR;
Jin Tae Hwang, Daejeon, KR;
Hyeong Il Kim, Daejeon, KR;
Wang Mo Jung, Daejeon, KR;
Dong Hun Lee, Daejeon, KR;
LG Energy Solution, Ltd., Seoul, KR;
Abstract
A method of preparing a positive electrode active material for a secondary battery includes preparing a lithium composite transition metal oxide which includes nickel, cobalt, and manganese and contains 60 mol % or more of the nickel among all metals except lithium, adding a moisture absorbent and the lithium composite transition metal oxide into an atomic layer deposition (ALD) reactor, and adding a coating metal precursor into the atomic layer deposition (ALD) reactor and forming a metal oxide coating layer on surfaces of particles of the lithium composite transition metal oxide by atomic layer deposition (ALD).