公开(公告)号：US20250070180A1

公开(公告)日：2025-02-27

申请号：US18942284

申请日：2024-11-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Qi XING ,  Chengdong SUN ,  Huihui LIU ,  Lianwei DUAN

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M4/525 ,  H01M4/58 ,  H01M10/052

Abstract: A preparation method of a positive electrode slurry includes a first stirring, a second stirring, a third stirring and a fourth stirring. In the first stirring, a positive electrode active material, a conductive agent and a first binder are mixed and stirred to prepare a dry mixture. In the second stirring, a second binder and a solvent are mixed and stirred to prepare an adhesive solution. In the third stirring, the dry mixture and the adhesive solution are mixed and stirred to prepare a primary slurry. In the fourth stirring, a solvent and the primary slurry are mixed and stirred to prepare a positive electrode slurry. The weight average molecular weight of a polymer in the second binder is smaller than the weight average molecular weight of any polymer in the first binder.

公开(公告)号：US20250070182A1

公开(公告)日：2025-02-27

申请号：US18947705

申请日：2024-11-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Qi XING ,  Chuying OUYANG ,  Chengdong SUN ,  Huihui LIU

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/139

Abstract: A preparation method of a positive electrode slurry includes a first stirring, a second stirring, a third stirring and a fourth stirring. In the first stirring, a positive electrode active material and a binder are mixed and stirred to prepare a dry mixture. In the second stirring, a binder and a solvent are mixed and stirred to prepare an adhesive solution. In the third stirring, the dry mixture and the adhesive solution are mixed and stirred to prepare a primary slurry. In the fourth stirring, a positive electrode active material, a conductive agent, a solvent and the primary slurry are mixed and stirred to prepare a positive electrode slurry. The binder used in the first stirring is the same as the binder used in the second stirring.

公开(公告)号：US20250070181A1

公开(公告)日：2025-02-27

申请号：US18942295

申请日：2024-11-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Wei FENG ,  Huihui LIU ,  Chuying OUYANG ,  Chengdong SUN ,  Shuai ZHANG ,  Huanhuan ZUO ,  Wenshuai ZHANG ,  Yongbin ZHUO

IPC: H01M4/62 ,  C08F214/22 ,  H01M4/04

Abstract: A fluoropolymer includes a structural unit derived from a monomer of Formula I, a structural unit derived from an olefin monomer, and a structural unit derived from a monomer of Formula II. A molar content of the structural unit derived from the monomer of Formula I is in a range of 60% to 80% based on a total mole of the structural units in the fluoropolymer, wherein R1, R2 and R3 each are independently selected from hydrogen, fluorine, chlorine, or C1-3 alkyl containing at least one fluorine atom, and R4, R5 and R6 each are independently selected from hydrogen, or substituted or unsubstituted C1-5 alkyl.

公开(公告)号：US20250070179A1

公开(公告)日：2025-02-27

申请号：US18946969

申请日：2024-11-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Shaohua AI ,  Chengdong SUN ,  Yi ZHENG ,  Yu CHEN ,  Qi ZENG ,  Yuxi ZHANG ,  Xin ZHOU

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M10/0587

Abstract: The present application discloses an electrode slurry, comprising an electrode active material, a binder composition and a solvent; the binder composition comprises a thermally crosslinked polymer and a thermal crosslinking agent, wherein the thermally crosslinked polymer comprises one or more of an epoxy resin, an acrylic-capped prepolymer and an acrylate-capped prepolymer.

公开(公告)号：US20250066522A1

公开(公告)日：2025-02-27

申请号：US18949054

申请日：2024-11-15

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Wei FENG ,  Huihui LIU ,  Chuying OUYANG ,  Chengdong SUN ,  Wenshuai ZHANG ,  Shuai ZHANG ,  Huanhuan ZUO ,  Yongbin ZHOU

IPC: C08F214/22 ,  C08F212/08 ,  C08F220/06 ,  C09D5/00 ,  C09D125/16 ,  C09D127/16 ,  C09D133/08

Abstract: A core-shell polymer comprises a core portion and a shell portion that at least partially covers the core portion. The core portion comprises a structural unit derived from a monomer represented by Formula I, and the shell portion comprises a structural unit derived from a monomer represented by Formula I, a structural unit derived from a monomer represented by Formula II, and a structural unit derived from a monomer represented by Formula III, wherein R1, R2 and R3 are each independently selected from hydrogen, fluorine, chlorine or C1-3 alkyl containing at least one fluorine atom, R4, R5, R6, R7, R8, R9 are each independently selected from hydrogen or substituted or unsubstituted C1-3 alkyl, and Ar is substituted or unsubstituted aryl.