公开(公告)号：US20240228815A1

公开(公告)日：2024-07-11

申请号：US18285866

申请日：2022-04-07

Applicant: Arkema Inc.

Inventor： Yujie LIU ,  Skip M. SPARKS ,  James J. HENRY

IPC: C09D127/16 ,  C08F214/22 ,  C09D7/20 ,  H01B3/44 ,  H01B13/00 ,  H01B13/16 ,  H02G15/08

CPC classification number: C09D127/16 ,  C08F214/22 ,  C09D7/20 ,  H01B3/445 ,  H01B13/0016 ,  H01B13/165 ,  C08F2800/20 ,  H02G15/08

Abstract: A connecting composition and a scaling coating for wire or cable insulation is disclosed. The connecting composition comprising a PVDF copolymer and a solvent. The solvent comprises cyclic ketone, wherein the weight percent of PVDF copolymer is from 20 to 40 wt. %, preferably 20 to 35 wt. % based on the total weight of PVDF copolymer and solvent. The PVDF copolymer comprises one or more comonomers and at least 75 wt. % vinylidene fluoride units, preferable at least 80% vinylidene fluoride units and has a melt viscosity of 2 to 12, preferably 4 and 10 kPoise at 230° C. and 100 s−1.

公开(公告)号：US20220311098A1

公开(公告)日：2022-09-29

申请号：US17618918

申请日：2020-06-24

Applicant: Arkema Inc.

Inventor： Yujie LIU ,  Jiaxin J. GE

IPC: H01M50/46 ,  H01M50/446 ,  H01M10/0525 ,  H01M50/403 ,  C09J127/22 ,  C09J11/04 ,  C09J133/08 ,  C09J127/16 ,  C09J127/20 ,  C08K3/34 ,  C08K3/22 ,  H01M50/417

Abstract: A coated separator for a lithium ion battery contains the porous separator substrate, and coatings on at least one side of the separator. The organic coating contains a silane functionalized fluoropolymer-acrylic composition or a mixture of silane functionalized fluoropolymer and non-silane functionalized fluoropolymer. The present invention can improve the adhesion of the coated separator to electrodes and offer good swelling properties in electrolyte.

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.

公开(公告)号：US20220259357A1

公开(公告)日：2022-08-18

申请号：US17618917

申请日：2020-06-24

Applicant: Arkema Inc.

Inventor： Yujie LIU ,  Jiaxin J. GE

IPC: C08F259/08

Abstract: A silane functionalized fluoropolymer-acrylic composition is disclosed.