公开(公告)号：US20240380072A1

公开(公告)日：2024-11-14

申请号：US18778968

申请日：2024-07-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haiyi Hong ,  Lei Li ,  Xiaonan Cheng ,  Jianrui Yang ,  Haiyang Kang ,  Yi Zheng ,  Chengdong Sun

IPC: H01M50/46 ,  B01J13/18 ,  C08F220/14 ,  C08K5/12 ,  H01M50/414 ,  H01M50/42 ,  H01M50/443

Abstract: This application relates to the field of battery technologies, and in particular, to a binder and a preparation method thereof, and a separator, electrode assembly, battery cell, battery, and electric apparatus containing such binder. The binder includes a capsule and a core material provided in the capsule, where the capsule includes an organic polymer, and the core material includes a plasticizer. The plasticizer is encapsulated as the core material inside the capsule of the organic polymer to improve adhesion performance of the organic polymer, so as to increase adhesion force between a separator and an electrode plate by the binder.

公开(公告)号：US20240304945A1

公开(公告)日：2024-09-12

申请号：US18658920

申请日：2024-05-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yanyun Ma ,  Haiyi Hong ,  Xiaonan Cheng ,  Peng Wang ,  Lei Chao ,  Jianrui Yang ,  Yi Zheng ,  Chengdong Sun

IPC: H01M50/446 ,  H01M50/42 ,  H01M50/434

CPC classification number: H01M50/446 ,  H01M50/42 ,  H01M50/434

Abstract: This application discloses a separator and a preparation method therefor, a battery, and an electric apparatus. The coating is formed on at least part of a surface of the substrate, the coating includes composite particles, first inorganic particles, and a binder, the composite particles form bulges on a surface of the coating, the composite particles include polyacrylate particles and ion-conducting particles, and the ion-conducting particle is present between at least two polyacrylate particles. A mass ratio of the first inorganic particles to the ion-conducting particles is 1:0.007-0.06.

公开(公告)号：US20240266673A1

公开(公告)日：2024-08-08

申请号：US18624235

申请日：2024-04-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuanyuan Lan ,  Jianrui Yang ,  Haiyi Hong ,  Cong Cheng ,  Na Liu ,  Haizu Jin

IPC: H01M50/446 ,  H01M50/417 ,  H01M50/426 ,  H01M50/449 ,  H01M50/494

CPC classification number: H01M50/446 ,  H01M50/417 ,  H01M50/426 ,  H01M50/449 ,  H01M50/494

Abstract: This application relates to a separator, including a substrate and a coating layer provided on at least one surface of the substrate. The coating layer includes organic particles and inorganic particles, the organic particles include first-type organic particles, the inorganic particles form an inorganic particle layer, and the first-type organic particles are embedded into the inorganic particle layer and form bulges on a surface of the inorganic particle layer. A number-based median particle size of the first-type organic particles is ≥12 μm, and a ratio of an average height of the bulges to a thickness of the inorganic particle layer is ≥4. This application further relates to a separator preparation method, a secondary battery containing such separator, and a related battery module, battery pack, and apparatus.