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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 11764442 B1

PDFFull Text
Date of Patent:
Sep. 19, 2023

Filed:

Apr. 13, 2021

Separator for rechargeable lithium battery and rechargeable lithium battery including the same

Applicant:

Samsung Sdi Co., Ltd., Yongin-si, KR;

Inventors:

Byung-Soo Kim, Suwon-si, KR;

Jaehyun Cho, Suwon-si, KR;

Assignee:

Samsung SDI Co., Ltd., Yongin-si, KR;

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Christopher P Domone

Assistant Examiner:

Jonathan William Estes

Int. Cl.
CPC ...
H01M 50/446 (2021.01); H01M 50/449 (2021.01); H01M 10/0525 (2010.01); H01M 50/434 (2021.01); H01M 50/423 (2021.01); C08K 3/22 (2006.01); C09D 183/16 (2006.01);
U.S. Cl.
CPC ...
H01M 50/446 (2021.01); C09D 183/16 (2013.01); H01M 10/0525 (2013.01); H01M 50/423 (2021.01); H01M 50/434 (2021.01); H01M 50/449 (2021.01); C08K 3/22 (2013.01); C08K 2003/2227 (2013.01);
Abstract

A separator for a rechargeable lithium battery includes a porous substrate; and a coating layer on at least one surface of the porous substrate, wherein the coating layer is formed from a coating layer composition including an organosilazane compound, inorganic particles, an initiator, and a solvent, the coating layer includes a curable binder of the organosilazane compound and inorganic particles, the curable binder of the organosilazane compound includes a copolymer including a structural unit represented by Chemical Formula 1, a structural unit represented by Chemical Formula 2, and a structural unit represented by Chemical Formula 3, and a nitrogen (N) atom derived from Chemical Formula 1 is greater than about 0 at % and less than about 5 at % (atomic percent) in the coating layer, and a rechargeable lithium battery. Chemical Formula 1 to Chemical Formula 3 are as defined in the specification.

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Kim, Byung-Soo. (2023). Separator for rechargeable lithium battery and rechargeable lithium battery including the same (U.S. Patent No. 11764442). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11764442

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