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. 21, 2024
Filed:
May. 09, 2022
Applicant:
SK on Co., Ltd., Seoul, KR;
Inventors:
Assignee:
SK ON CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/136 (2010.01); H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01); H01M 10/0565 (2010.01); H01M 50/124 (2021.01);
U.S. Cl.
CPC ...
H01M 4/136 (2013.01); H01M 4/0404 (2013.01); H01M 4/0435 (2013.01); H01M 4/131 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/625 (2013.01); H01M 10/0565 (2013.01); H01M 50/124 (2021.01); H01M 50/1245 (2021.01); H01M 4/1391 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 2300/0082 (2013.01);
Abstract
A lithium secondary battery comprises a cathode formed from a cathode active material including a first cathode active material particle and a second cathode active material particle, an anode and a separator interposed between the cathode and the anode. The first cathode active material particle includes a lithium metal oxide including a continuous concentration gradient in at least one region between a central portion and a surface portion. The second cathode active material particle includes a constant concentration composition.