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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.:

US 12744209 B1

PDFFull Text
Date of Patent:
Sep. 22, 2026

Filed:

Jan. 04, 2023

Lithium secondary battery

Applicants:

SK on Co., Ltd., Seoul, KR;

SK Innovation Co., Ltd., Seoul, KR;

Inventors:

In Haeng Cho, Daejeon, KR;

Jung Hwan Kim, Daejeon, KR;

Sang Han Lee, Daejeon, KR;

Jong Hyuk Lee, Daejeon, KR;

Dong Wook Ha, Daejeon, KR;

Assignee:

SK On Co., Ltd., Seoul, KR;

Attorney:

IP & T GROUP LLP

Primary Examiner:

Nicholas P D'aniello

Int. Cl.
CPC ...
H01M 4/00 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/052 (2010.01); H01M 10/0567 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); H01M 4/0404 (2013.01); H01M 4/364 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 10/052 (2013.01); H01M 10/0567 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0034 (2013.01); H01M 2300/0037 (2013.01);
Abstract

A lithium secondary battery includes a cathode including a cathode current collector and a cathode active material layer disposed on at least one surface of the cathode current collector, the cathode active material layer including a cathode active material including first cathode active material particles, each of which has a single particle shape; an anode facing the cathode; and a non-aqueous electrolyte including a non-aqueous organic solvent that contains a fluorine-based organic solvent, a lithium salt and an additive.

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