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:
Mar. 05, 2024

Filed:

Mar. 03, 2020
Applicants:

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

Samsung Electronics Co., Ltd., Gyeonggi-do, KR;

Inventors:

Jungsue Jang, Suwon-si, KR;

Minho Cho, Suwon-si, KR;

Hana Kim, Suwon-si, KR;

Myungkook Park, Suwon-si, KR;

Seung Rim Yang, Seongnam-si, KR;

Byungmin Lee, Suwon-si, KR;

Bokyung Jung, Suwon-si, KR;

Rae Sung Kim, Hwaseong-si, KR;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/446 (2021.01); H01M 10/052 (2010.01); H01M 50/414 (2021.01); H01M 50/42 (2021.01); H01M 50/451 (2021.01); H01M 50/417 (2021.01);
U.S. Cl.
CPC ...
H01M 10/052 (2013.01); H01M 50/414 (2021.01); H01M 50/42 (2021.01); H01M 50/446 (2021.01); H01M 50/451 (2021.01); H01M 50/417 (2021.01);
Abstract

A separator for a rechargeable lithium battery and a rechargeable lithium battery, the separator including a porous substrate; and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a binder and inorganic particles, the binder including a polyurethane and a polyvinyl alcohol, and the polyurethane and the polyvinyl alcohol are included in a weight ratio of about 5:5 to about 9:1.


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