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:
Oct. 25, 2022
Filed:
Feb. 26, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Jun Ho Eom, Daejeon, KR;
Sung Ho Ban, Daejeon, KR;
Hyeon Hui Baek, Daejeon, KR;
Na Ri Park, Daejeon, KR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 50/46 (2021.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); H01M 4/0404 (2013.01); H01M 4/131 (2013.01); H01M 4/364 (2013.01); H01M 4/505 (2013.01); H01M 4/668 (2013.01); H01M 10/0525 (2013.01); H01M 50/46 (2021.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01);
Abstract
A method for preparing a positive electrode active material and a positive electrode active material prepared by the method are provided. The method includes preparing a lithium composite transition metal oxide represented by Formula 1, and washing the lithium composite transition metal oxide with a cleaning liquid containing cleaning water and a surfactant. The cleaning liquid contains cleaning water in an amount of no less than 50 parts by weight and less than 400 parts by weight based on 100 parts by weight of the lithium composite transition metal oxide.