公开(公告)号：US20240186622A1

公开(公告)日：2024-06-06

申请号：US18442169

申请日：2024-02-15

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haizu JIN ,  Wei LIU ,  Hu XU

IPC: H01M50/14 ,  H01M50/121

CPC classification number: H01M50/14 ,  H01M50/121 ,  H01M2220/20

Abstract: A battery cell, a battery and an electricity-consuming apparatus are provided by the present application. The battery cell includes a casing, an electrode assembly and at least one binding member. The electrode assembly is arranged in the casing. The electrode assembly includes a main body. The main body includes a first end and a second end arranged opposite to each other in an axial direction of the electrode assembly. At least one binding member is arranged between a peripheral side face of the main body and the casing. The at least one binding member includes a first binding member. The minimum distance between the first binding member and the first end is smaller than the minimum distance between the first binding member and the second end.

公开(公告)号：US20240006695A1

公开(公告)日：2024-01-04

申请号：US18234385

申请日：2023-08-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU

IPC: H01M50/188 ,  H01M50/179 ,  H01M50/152 ,  H01M50/107 ,  H01M50/559

CPC classification number: H01M50/188 ,  H01M50/179 ,  H01M50/152 ,  H01M50/107 ,  H01M50/559

Abstract: An end cap assembly may include an end cap, a terminal post, a first isolator, a second isolator, and an insulator. The end cap may be provided with a mounting hole, and the mounting hole may run through the end cap in a thickness direction of the end cap. The terminal post may include a body segment arranged in the mounting hole in a penetrating manner. In the thickness direction of the end cap, the first isolator and the second isolator may be respectively arranged on two sides of the end cap and cooperatively insulate and isolate the end cap from the terminal post. The insulator may enclose the body segment in a circumferential direction of the body segment. In the thickness direction of the end cap, the first isolator and the second isolator may form a gap at a position opposite the mounting hole.

公开(公告)号：US20220367918A1

公开(公告)日：2022-11-17

申请号：US17847200

申请日：2022-06-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Haizu JIN

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M50/538

Abstract: Embodiments of the application provide an electrode assembly, a battery cell, a battery and an electric device. The electrode assembly in the embodiments of the application includes a positive pole piece and a negative pole piece, the positive pole piece and the negative pole piece are wound in a winding direction to form a winding structure including a bent region. The positive pole piece and the negative pole piece each includes a plurality of bent portions located in the bent region, at least one of the bent portions in the positive pole piece is a first bent portion and at least one of the bent portions in the negative pole piece is a second bent portion adjacent to the first bent portion. The electrode assembly is provided with a first barrier. The application can improve the safety performance of the battery cell.

公开(公告)号：US20220246973A1

公开(公告)日：2022-08-04

申请号：US17562537

申请日：2021-12-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haizu JIN ,  Hu XU ,  Baiqing LI ,  Xing LI ,  Chengdu LIANG

IPC: H01M10/04

Abstract: The present application provides an electrode assembly, including a negative electrode plate and a positive electrode plate, the negative electrode plate and the positive electrode plate being wound in a winding direction to form a winding structure including a bending area. Both the negative and the positive electrode plates include a plurality of bending portions located in the bending area. At least one bending portion in the negative electrode plate is a first bending portion, and an active substance capacity per unit area outside the first bending portion is greater than an active substance capacity per unit area inside the first bending portion; and/or, at least one bending portion in the positive electrode plate is a second bending portion, and an active substance capacity per unit area outside the second bending portion is greater than an active substance capacity per unit area inside the second bending portion.

公开(公告)号：US20220158197A1

公开(公告)日：2022-05-19

申请号：US17665953

申请日：2022-02-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Miaomiao REN ,  Yongshou LIN ,  Long XU ,  Youlei LAI ,  Haizu JIN ,  Lingbo ZHU

IPC: H01M4/66

Abstract: An electrode assembly and a battery cell is disclosed. The electrode assembly includes a first electrode plate and a second electrode plate. The first electrode plate includes a first current collector and a first active material layer, the first current collector includes a first main body and a first tab, and the first tab extends from one end of the first main body in a longitudinal direction. The second electrode plate includes a second current collector and a second active material layer, the second current collector includes a second main body and a second tab, the second tab extends from one end of the second main body in the longitudinal direction, and the second active material layer is applied on a surface of the second main body.

公开(公告)号：US20210376372A1

公开(公告)日：2021-12-02

申请号：US17135741

申请日：2020-12-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu LIANG ,  Hu XU ,  Haizu JIN ,  Yuqun ZENG

IPC: H01M10/04 ,  H01M50/204 ,  H01M10/0585 ,  H01M10/0587

Abstract: An electrode assembly and a related battery, and battery module are provided, wherein the electrode assembly includes: at least one positive electrode plate and at least one negative electrode plate, the number of all the positive and negative electrode plates is greater than or equal to 3; the positive and negative electrode plates are wound around the winding axis and arranged in a superimposing manner along a direction vertical to the winding axis, each positive electrode plate includes a positive main body part, at least part of the positive main body part is a positive active substance area, each negative electrode plate includes a negative main body part, at least part of the negative main body part is the negative active substance area, two ends of the negative active substance area along the winding axis both exceed corresponding ends of the adjacent positive active substance area.

公开(公告)号：US20210265709A1

公开(公告)日：2021-08-26

申请号：US17317854

申请日：2021-05-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Miaomiao Ren ,  Yuanbao Chen ,  Long Xu ,  Donglai Zheng ,  Lingbo Zhu ,  Yongshou Lin

IPC: H01M50/54 ,  H01M50/564

Abstract: This application provides a current collecting member, a secondary battery, and a fabrication method. The secondary battery includes an electrode assembly, a housing, a top cover assembly and current collecting members. The electrode assembly includes a main body portion and a first tab extending from an end of the main body portion along a transverse direction. The top cover assembly includes a top cover plate and a first electrode terminal disposed on the top cover plate connected to the housing. The current collecting member is connected to the first tab and the first electrode terminal. The current collecting member includes a substrate and a support plate, the substrate being provided at a side of the main body portion along a transverse direction, the support plate extending from an end part of the substrate in a longitudinal direction, and the first tab being connected to the support plate.

公开(公告)号：US20240372187A1

公开(公告)日：2024-11-07

申请号：US18773695

申请日：2024-07-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Shaojun NIU ,  Haizu JIN ,  Jipeng GUO ,  Yikuang JIN

IPC: H01M50/184 ,  H01M50/169

Abstract: A battery cell, a battery and an electric device are provided. The battery cell includes a casing, which is provided with an opening; an electrode assembly, which is accommodated inside the casing; and a cover body, which closes the opening and forms a sealing structure with the casing. One of the casing and the cover body is provided with a first flange portion; the first flange portion is connected to the other one of the casing and the cover body by means of a connection portion; the connection portion includes a first region and a second region; and the strength of the second region is lower than the strength of the first region.

公开(公告)号：US20240322302A1

公开(公告)日：2024-09-26

申请号：US18669135

申请日：2024-05-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Haizu JIN ,  Fenggang ZHAO ,  Siying HUANG

IPC: H01M50/103 ,  H01M10/04 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6555 ,  H01M10/6567 ,  H01M50/131 ,  H01M50/15 ,  H01M50/209 ,  H01M50/249 ,  H01M50/474 ,  H01M50/531 ,  H01M50/548

CPC classification number: H01M50/103 ,  H01M10/0404 ,  H01M10/0431 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6555 ,  H01M10/6567 ,  H01M50/131 ,  H01M50/15 ,  H01M50/209 ,  H01M50/249 ,  H01M50/474 ,  H01M50/531 ,  H01M50/548 ,  H01M2220/20

Abstract: A battery cell includes: a hexahedral housing, where the hexahedral housing has a first wall and a second wall oppositely arranged, the first wall is provided with a positive electrode terminal, and the second wall is provided with a negative electrode terminal; and a cylindrical electrode assembly arranged in the housing, where the axial direction of the cylindrical electrode assembly is perpendicular to the first wall or the second wall, a positive electrode tab of the cylindrical electrode assembly is arranged at a first end of the cylindrical electrode assembly and connected to the positive electrode terminal, and a negative electrode tab of the cylindrical electrode assembly is arranged at a second end of the cylindrical electrode assembly and connected to the negative electrode terminal.

公开(公告)号：US20240283109A1

公开(公告)日：2024-08-22

申请号：US18651645

申请日：2024-04-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU

IPC: H01M50/547 ,  H01M10/04 ,  H01M50/102 ,  H01M50/502

CPC classification number: H01M50/547 ,  H01M50/102 ,  H01M50/502 ,  H01M10/0409

Abstract: A battery cell includes a housing, an electrode component, and an electrode terminal. The outer surface of the housing is provided with a recess. The electrode component is accommodated within the housing. At least a part of the electrode terminal is accommodated within the recess, and the electrode terminal is configured to be electrically connected to the electrode component to export electric energy of the electrode component. The recess is configured to accommodate at least a part of a busbar of a battery, the busbar is configured to connect electrode terminals of a plurality of battery cells to electrically connect the plurality of battery cells.