公开(公告)号：US20250051498A1

公开(公告)日：2025-02-13

申请号：US18722639

申请日：2022-11-16

Applicant: Arkema Inc.

Inventor： Yuanqin LIU

IPC: C08F214/22 ,  C08F299/02 ,  C08J3/24 ,  C08K5/17 ,  C08K5/25

Abstract: This invention describes the preparation and characterization of cross-linkable fluoropolymers, These cross-linkable fluoropolymers contain keto functional monomer. The keto functional monomer is incorporated on fluoropolymer while crosslinking agent was post-added after polymerization. The cross-linking reaction occurs after water/solvent evaporation or during melt processing.

公开(公告)号：US20220311091A1

公开(公告)日：2022-09-29

申请号：US17618915

申请日：2020-06-23

Applicant: Arkema Inc.

Inventor： Yujie LIU ,  Yuanqin LIU

IPC: H01M50/426 ,  H01M50/449 ,  H01M50/403

Abstract: The invention relates to a fluoropolymer-acrylic coating composition that can be used, for example, in coating electrodes and/or separators in electrochemical devices. A coated separator for a lithium ion battery contains the porous separator substrate, and coatings on at least one side of the separator. The coating consists of an inorganic coating on at least one side of the separator, and an adhesive organic coating on at least one side of the inorganic coating or the separator. The organic coating contains an improved fluoropolymer-acrylic composition or a mixture of fluoropolymer and acrylic. The present invention can improve the adhesion of the coated separator to electrodes.