公开(公告)号：US20230030940A1

公开(公告)日：2023-02-02

申请号：US17897119

申请日：2022-08-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Chengyou XING ,  Quankun LI ,  Kun FANG ,  Wenqi ZHU

IPC: H01M50/152 ,  H01M50/533 ,  H01M50/593

Abstract: A battery cell includes an electrode assembly, a housing, and an end cap. The electrode assembly includes a tab. The housing has an opening and includes a limit part, and is configured to accommodate the electrode assembly. The end cap includes a cap body and a convex part. The cap body is configured to cover the opening. In a thickness direction of the end cap, the cap body is located at one side of the limit part away from the electrode assembly. The limit part is configured to limit the cap body from moving relatively to the housing towards the electrode assembly. The convex part protrudes from an inner surface of the cap body towards the electrode assembly. The convex part is configured to go beyond the limit part away from the cap body, so that the convex part is pressed against the tab.

公开(公告)号：US20220320643A1

公开(公告)日：2022-10-06

申请号：US17842775

申请日：2022-06-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Chengyou XING ,  Wenlong KANG ,  Quankun LI ,  Peng WANG

IPC: H01M50/147 ,  H01M50/30 ,  H01M50/102 ,  H01M50/533 ,  H01M50/543 ,  H01M50/143

Abstract: An end cap assembly includes an end cap configured to close a housing of a battery cell, an adapting member configured to electrically connect an electrode assembly of the battery cell to an electrode terminal of the battery cell, and a supporting member between the adapting member and the end cap. An explosion-proof mechanism provided at the end cap is configured to be actuated to release an internal pressure of the battery cell when thermal runaway occurs in the battery cell. The supporting member is made of a high-temperature-resistant material. An orthographic projection of the adapting member on a first surface of the end cap at least partially overlaps an orthographic projection of the explosion-proof mechanism on the first surface of the end cap and an orthographic projection of the supporting member on the first surface. The first surface is a surface of the end cap facing the housing.

公开(公告)号：US20220320642A1

公开(公告)日：2022-10-06

申请号：US17558734

申请日：2021-12-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang CAI ,  Huasheng SU ,  Xiaoping ZHANG ,  Peng WANG ,  Quankun LI ,  Chengyou XING

IPC: H01M50/147 ,  H01M10/0525 ,  H01M50/186 ,  H01M50/627

Abstract: Embodiments of the application provide an end cover assembly, a battery cell, a battery and a method and device for manufacturing the battery cell. The end cover assembly includes an end cover, an insulating part, a blocking part and a separating part. The end cover is provided with an injection hole. The insulating part is configured to be arranged on a side of the end cover in the thickness direction and is provided with a through hole. The blocking part is provided with a liquid outlet and is configured to change a flow direction of a fluid medium passing through the injection hole and the through hole, and the fluid medium after changing the flow direction entering inside of the battery cell through the liquid outlet. The separating part is configured to separate a tab from the end cover.

公开(公告)号：US20210359381A1

公开(公告)日：2021-11-18

申请号：US17388039

申请日：2021-07-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuyong LEI ,  Chengyou XING ,  Peng WANG

IPC: H01M50/54 ,  H01M50/176 ,  H01M50/147 ,  H01M50/528 ,  H01M50/543

Abstract: The present application provides a secondary battery, which includes a first electrode assembly, a second electrode assembly, a case, and a top cap assembly. The top cap assembly includes a top cap plate and a first electrode terminal, the top cap plate is connected to the case, and the first electrode terminal is arranged on the top cap plate. The first electrode assembly includes a first body and first tabs extending from the first body, and the first tabs are multiple and stacked. The second electrode assembly includes a second body and second tabs extending from the second body, and the second tabs are multiple and stacked. An end of each of the second tabs that is away from the second body is a second end portion. Each of the first tabs includes a first connecting portion extending beyond the second end portion.

公开(公告)号：US20200335765A1

公开(公告)日：2020-10-22

申请号：US16920534

申请日：2020-07-03

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengyou XING

IPC: H01M2/34 ,  H01M2/12 ,  H01M2/04

Abstract: The present disclosure provides a secondary battery top cover assembly, a secondary battery and a vehicle. The top cover assembly includes: a top cover plate; an electrode terminal; and a short-circuit component including a deformable plate and a conductive plate disposed above the deformable plate. The deformable plate is connected to the top cover plate, and the conductive plate is connected to the electrode terminal. The conductive plate includes a body portion and a protrusion portion protruding upwardly from the body portion, the conductive plate is provided with a gas hole, and the gas hole cuts through the protrusion portion and the body portion, an inner wall of the gas hole includes an arc-shaped smooth transition portion.

公开(公告)号：US20240372178A1

公开(公告)日：2024-11-07

申请号：US18771506

申请日：2024-07-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quankun LI ,  Qi CHENG ,  Chengyou XING ,  Peng WANG ,  Haizu JIN

IPC: H01M50/112 ,  H01M10/04 ,  H01M50/15 ,  H01M50/169 ,  H01M50/548

Abstract: A battery includes electrode assemblies and a shell assembly. The electrode assembly comprises two tabs. A plurality of accommodating cavities are formed inside the shell assembly, and accommodates at least one of the electrode assemblies, and adjacent cavities share a partition wall that partitions the two adjacent accommodating cavities. The shell assembly includes a plurality of output assemblies, each of the cavities is correspondingly provided with one of the output assemblies which each include two output electrodes respectively configured to be electrically connected to the two tabs of the electrode assembly in the corresponding cavity.

公开(公告)号：US20240347863A1

公开(公告)日：2024-10-17

申请号：US18756687

申请日：2024-06-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Chengyou XING ,  Chunguang XU ,  Quankun LI ,  Peng WANG

IPC: H01M50/474 ,  H01M10/48 ,  H01M50/107

CPC classification number: H01M50/474 ,  H01M10/488 ,  H01M50/107 ,  H01M2220/20

Abstract: The present application provides a battery cell, a battery, and an electrical device. The battery cell comprises a case, a cell, a first expandable member, and a second expandable member. The cell is arranged inside the case. There is a gap between an outer wall of the cell and an inner wall of the case. The first and second expandable members are both arranged in the gap and are configured to expand when encountering an electrolyte solution to fill the gap. The first and second expandable members are spaced apart and can expand when encountering the electrolyte solution. After expansion, the gap between the cell and the case can be reduced, thereby restricting relative movement between the cell and the case, reducing the possibility of fatigue fracture of connecting sheets, and contributing to protecting tabs.

公开(公告)号：US20240162558A1

公开(公告)日：2024-05-16

申请号：US18513663

申请日：2023-11-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Quankun LI ,  Chengyou XING ,  Peng WANG ,  Haizu JIN

IPC: H01M50/375 ,  H01M10/04

CPC classification number: H01M50/375 ,  H01M10/04 ,  H01M2200/20 ,  H01M2220/20

Abstract: A battery cell may include a housing, an electrode assembly, a current collector and a pressure relief structure. The end cover may be configured for covering the opening of the housing. The current collector may be configured for connecting the electrode assembly and the end cover. The pressure relief structure may be arranged on the end cover. A side of the end cover facing away from the electrode assembly may be provided with a concave, the concave may be configured for accommodating at least a portion of the pressure relief structure, a connecting part may be formed on the end cover in an area where the concave may be provided, the connecting part may be configured for being welded to the current collector to form a first welded part, and the pressure relief structure may cover the first welded part along a thickness direction of the end cover.

公开(公告)号：US20240063482A1

公开(公告)日：2024-02-22

申请号：US18499193

申请日：2023-10-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Quankun LI ,  Chengyou XING ,  Peng WANG ,  Haizu JIN

IPC: H01M50/152 ,  H01M50/188 ,  H01M50/184 ,  H01M50/627 ,  H01M50/548 ,  H01M10/04

CPC classification number: H01M50/152 ,  H01M50/188 ,  H01M50/184 ,  H01M50/627 ,  H01M50/548 ,  H01M10/0422

Abstract: An end cap assembly applicable to a battery cell includes a cover plate configured to close a housing, a terminal plate located on a side of the cover plate away from the housing, a first insulation component at least partially located between the terminal plate and the cover plate, an electrode terminal penetrating the cover plate and the first insulation component and connected to the terminal plate, and a sealing element including a sealing portion and a connecting portion connected to the sealing portion. The sealing portion is disposed between a first insulation component and the cover plate to form a sealing region around the electrode terminal.

公开(公告)号：US20220247043A1

公开(公告)日：2022-08-04

申请号：US17554412

申请日：2021-12-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Chengyou XING ,  Quankun LI ,  Peng WANG ,  Wenzhong LIU ,  Yanyun QIN

IPC: H01M50/559 ,  H01M10/48 ,  H01M50/213 ,  H01M10/42 ,  H01M50/566

Abstract: An embodiment of the present application provides a battery cell, a battery, a power consumption device, and a battery cell manufacturing method and device, which belong to the field of battery technologies. The battery cell includes an adapting member, the adapting member includes a first connection portion for connecting an electrode terminal and a second connection portion for connecting an electrode assembly, the first connection portion and the second connection portion are dividedly set and connected to each other, and the first connection portion is in a multilayer structure and includes multiple layers of conductive sheets provided in a stacking manner, the second connection portion is in a single-layer structure, and a minimum thickness of the first connection portion is greater than a maximum thickness of the second connection portion.