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.

Date of Patent:
Sep. 09, 2025

Filed:

May. 13, 2022
Applicant:

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

Inventors:

Jayeon Gu, Yongin-si, KR;

Hana Kim, Yongin-si, KR;

Byungmin Lee, Yongin-si, KR;

Minho Cho, Yongin-si, KR;

Assignee:

SAMSUNG SDI CO., LTD., Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/446 (2021.01); H01M 10/052 (2010.01); H01M 50/403 (2021.01); H01M 50/449 (2021.01); H01M 50/491 (2021.01);
U.S. Cl.
CPC ...
H01M 50/446 (2021.01); H01M 10/052 (2013.01); H01M 50/403 (2021.01); H01M 50/449 (2021.01); H01M 50/491 (2021.01);
Abstract

Provided are a separator coating composition, a method of manufacturing a separator using the same, and a separator and a lithium battery using the same. The separator coating composition includes a binder containing an aqueous crosslinking reactive poly(vinylamide)-based copolymer, a crosslinking agent having at least bifunctionality, inorganic particles, and water, wherein the poly(vinylamide)-based copolymer includes a repeating unit derived from a vinylamide monomer and a repeating unit derived from a crosslinking reactive group-containing monomer. The separator coating composition may be used to prepare a separator capable of exhibiting high heat resistance even at a thinner coating thickness.


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