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:
Aug. 25, 2020
Filed:
Nov. 28, 2018
SK Innovation Co., Ltd., Seoul, KR;
Yun Bong Kim, Daejeon, KR;
Won Sub Kwack, Daejeon, KR;
Hye Jin Kim, Daejeon, KR;
Su Ji Lee, Daejeon, KR;
Kyu Young Cho, Daejeon, KR;
SK INNOVATION CO., LTD., Seoul, KR;
SK IE TECHNOLOGY CO., LTD., Seoul, KR;
Abstract
Provided are a composite separator for a secondary battery including: a porous substrate; and a coating layer, formed on the porous substrate, by thermally curing aqueous slurry including inorganic particles, first binder particles, a second binder, and a thermal curing agent, wherein the first binder particles contain a copolymer of a monomer mixture including an acrylamide-based monomer, a vinyl cyanide-based monomer, an acrylic monomer having a carboxyl group, and an acrylic monomer having a hydroxyl group, and a lithium secondary battery including the same.