公开(公告)号：US20220359951A1

公开(公告)日：2022-11-10

申请号：US17863299

申请日：2022-07-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yongsheng GUO ,  Jiarui Tian ,  Cong Cheng ,  Na Liu ,  Chuying Ouyang ,  Yuanyuan Lan ,  Shuojian Su

IPC: H01M50/446 ,  H01M50/403 ,  H01M50/491

Abstract: This application provides a separator, an electrical apparatus containing such separator, and preparation methods thereof. The separator includes a coating layer containing an organic-inorganic hybrid composite compound and provides improved performance in a number of aspects, and the organic-inorganic hybrid composite compound is formed by periodically assembling, along at least one spatial direction, basic units expressed by formula I, Lx(MaCb)y.Az. This application further provides a battery and an electrical device containing such separator, preparation methods thereof, and an organic-inorganic hybrid composite compound for improving performance of a separator.

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.

公开(公告)号：US12021259B2

公开(公告)日：2024-06-25

申请号：US17866409

申请日：2022-07-15

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yongsheng Guo ,  Jiarui Tian ,  Cong Cheng ,  Na Liu ,  Chuying Ouyang ,  Yuanyuan Lan ,  Shuojian Su

IPC: H01M50/446 ,  H01M50/403 ,  H01M50/414 ,  H01M50/431 ,  H01M50/449 ,  H01M50/451 ,  H01M50/491

CPC classification number: H01M50/446 ,  H01M50/403 ,  H01M50/414 ,  H01M50/431 ,  H01M50/449 ,  H01M50/451 ,  H01M50/491 ,  H01M2220/20

Abstract: This application provides a separator, an electrical apparatus containing such separator, and preparation methods thereof. The separator includes a coating layer containing an organic-inorganic hybrid composite compound and provides improved performance in a number of aspects, and the organic-inorganic hybrid composite compound is formed by periodically assembling, along at least one spatial direction, basic units expressed by formula I, Lx(MaCb)y·Az. This application further provides a battery and electrical device containing such separator, preparation methods thereof, organic-inorganic hybrid composite compound for improving performance of a separator.

公开(公告)号：US20240266541A1

公开(公告)日：2024-08-08

申请号：US18619084

申请日：2024-03-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haile Pei ,  Cong Cheng ,  Junguang Chen ,  Bingzi Yang ,  Shengwu Zhang ,  Xinghui Wang

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/136 ,  H01M4/58 ,  H01M4/66

CPC classification number: H01M4/622 ,  H01M4/136 ,  H01M4/5825 ,  H01M4/625 ,  H01M4/661 ,  H01M4/668 ,  H01M2004/021 ,  H01M2004/028

Abstract: This application provides a conductive slurry, a current collector, a secondary battery, a battery module, a battery pack, and an electric apparatus. The conductive slurry in this application includes the following raw material components: an aqueous binder including an aqueous polymer having polycarboxyl functionality, a conductive agent, a dispersant, and a curing agent, where the curing agent is used for cross-linking reaction with the aqueous polymer having polycarboxyl functionality. The conductive slurry in embodiments of this application has relatively good conductivity and adhesion performance as well as relatively good water resistance, which can improve stability of the secondary battery during operation and prolong its cycle life.

公开(公告)号：US11944954B2

公开(公告)日：2024-04-02

申请号：US17937457

申请日：2022-10-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jiarui Tian ,  Yongsheng Guo ,  Cong Cheng ,  Xinxin Zhang ,  Na Liu ,  Chuying Ouyang

IPC: B01J20/22 ,  B01J20/28 ,  H01M50/417 ,  H01M50/446 ,  H01M50/449

CPC classification number: B01J20/226 ,  B01J20/28059 ,  B01J20/28061 ,  B01J20/2808 ,  B01J20/28083 ,  B01J20/28085 ,  H01M50/417 ,  H01M50/446 ,  H01M50/449

Abstract: An organic-inorganic hybrid porous material. The organic-inorganic hybrid porous material contains a doping element A are provided. In some embodiments, the element A is one or more selected from: Li, Na, K, Rb, Cs, Sr, Zn, Mg, Ca, or any combination thereof. An external specific surface area of the organic-inorganic hybrid porous material is 1 to 100 m2/g. A ratio of the external specific surface area to a total specific surface area of the organic-inorganic hybrid porous material is 0.7 to 0.9.

公开(公告)号：US20230307790A1

公开(公告)日：2023-09-28

申请号：US18318744

申请日：2023-05-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/446 ,  H01M50/494 ,  H01M50/403 ,  H01M50/426

CPC classification number: H01M50/446 ,  H01M50/494 ,  H01M50/403 ,  H01M50/426 ,  H01M2220/20

Abstract: A separator, comprising a substrate and a coating provided on at least one surface of the substrate are provided. In some embodiments, the coating comprises inorganic particles and organic particles, the organic particles comprise first organic particles and second organic particles both embedded in the inorganic particles and forming protrusions on the surface of the coating; the first organic particles are secondary particles, and the number of the first organic particles in the coating is denoted as A; the second organic particles are primary particles and the number of the second organic particles in the coating is denoted as B; with the separator satisfying: 0.05≤A/B

公开(公告)号：US20230285933A1

公开(公告)日：2023-09-14

申请号：US17937457

申请日：2022-10-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jiarui Tian ,  Yongsheng Guo ,  Cong Cheng ,  Xinxin Zhang ,  Na Liu ,  Chuying Ouyang

IPC: B01J20/22 ,  H01M50/449 ,  H01M50/446 ,  H01M50/417 ,  B01J20/28

CPC classification number: B01J20/226 ,  B01J20/28059 ,  B01J20/28061 ,  B01J20/2808 ,  B01J20/28083 ,  B01J20/28085 ,  H01M50/417 ,  H01M50/446 ,  H01M50/449

Abstract: An organic-inorganic hybrid porous material. The organic-inorganic hybrid porous material contains a doping element A are provided. In some emodiments, the element A is one or more selected from: Li, Na, K, Rb, Cs, Sr, Zn, Mg, Ca, or any combination thereof. An external specific surface area of the organic-inorganic hybrid porous material is 1 to 100 m2/g. A ratio of the external specific surface area to a total specific surface area of the organic-inorganic hybrid porous material is 0.7 to 0.9.