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:
Nov. 14, 2023
Filed:
Oct. 19, 2020
Samsung Sdi Co., Ltd., Yongin-si, KR;
In Sik Jeon, Suwon-si, KR;
Jin Kyu Park, Suwon-si, KR;
Tae Joon Park, Suwon-si, KR;
Jun Ho Chung, Suwon-si, KR;
Mok Yun Jin, Suwon-si, KR;
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Abstract
Disclosed herein is a high thermal resistant polyolefin-based separator including a coating layer containing polyamic acid. Specifically, the separator includes a polyolefin-based substrate film, and a coating layer containing polyamic acid formed on one or both surfaces of the polyolefin-based substrate film, wherein the polyamic acid contains one or more functional groups selected from the group consisting of a sulfone group, a trifluoromethyl group, an alkyl group, and a phenyl ether group. Also, disclosed herein is an electrochemical battery having improved thermal stability by using the separator including a coating layer containing polyamic acid.