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:
Feb. 21, 2023
Filed:
May. 16, 2017
Applicant:
Samsung Sdi Co., Ltd., Yongin-si, KR;
Inventors:
Dongwan Seo, Suwon-si, KR;
Changhong Ko, Suwon-si, KR;
YangSeob Kim, Suwon-si, KR;
Yongkyoung Kim, Suwon-si, KR;
Sam-Jin Park, Suwon-si, KR;
Jinkyu Park, Suwon-si, KR;
Assignee:
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/44 (2021.01); H01M 50/403 (2021.01); H01M 50/411 (2021.01); H01M 50/446 (2021.01); H01M 50/449 (2021.01); H01M 50/429 (2021.01); H01M 50/42 (2021.01); H01M 50/417 (2021.01); H01M 10/0525 (2010.01); C09D 7/61 (2018.01); C08J 7/04 (2020.01); C08J 7/043 (2020.01); C08K 3/22 (2006.01); C09D 5/18 (2006.01); C09D 133/20 (2006.01); H01M 4/131 (2010.01); H01M 4/133 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/052 (2010.01); H01M 50/46 (2021.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
C09D 7/61 (2018.01); C08J 7/043 (2020.01); C08J 7/0427 (2020.01); C08K 3/22 (2013.01); C09D 5/18 (2013.01); C09D 133/20 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/623 (2013.01); H01M 4/624 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); H01M 50/403 (2021.01); H01M 50/411 (2021.01); H01M 50/417 (2021.01); H01M 50/42 (2021.01); H01M 50/4295 (2021.01); H01M 50/44 (2021.01); H01M 50/446 (2021.01); H01M 50/449 (2021.01); C08J 2323/06 (2013.01); C08J 2433/20 (2013.01); C08K 2003/2227 (2013.01); H01M 10/052 (2013.01); H01M 50/461 (2021.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01);
Abstract
A separator for a rechargeable battery includes a porous substrate and a heat resistance layer on at least one surface of the porous substrate. The heat resistance layer includes an acryl-based copolymer, an alkali metal, and a filler. The acryl-based copolymer includes a unit derived from (meth)acrylate or (meth)acrylic acid, a cyano group-containing unit, and a sulfonate group-containing unit.