公开(公告)号：US20230207984A1

公开(公告)日：2023-06-29

申请号：US18113074

申请日：2023-02-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO

IPC: H01M50/536 ,  H01M50/342 ,  H01M50/169 ,  H01M50/107 ,  H01M50/213 ,  H01M10/058 ,  H01M50/152

CPC classification number: H01M50/536 ,  H01M50/3425 ,  H01M50/169 ,  H01M50/107 ,  H01M50/213 ,  H01M10/058 ,  H01M50/152

Abstract: A battery cell may include: a housing having an opening; an electrode assembly, accommodated in the housing, where a first tab is disposed on the electrode assembly at an end oriented toward the opening; and an end cap, configured to fit and cover the opening. The end cap may include a cap body and a first protruding structure connected to the cap body. A rupturable structure may be disposed on the cap body. The end cap may rupture along the rupturable structure when an internal pressure of the battery cell reaches a threshold, so as to release the internal pressure. The first protruding structure may protrude from the cap body toward the electrode assembly, and support the first tab so that an avoidance clearance configured to avoid the rupturable structure is formed between the first tab and the cap body.

公开(公告)号：US20230118437A1

公开(公告)日：2023-04-20

申请号：US17721387

申请日：2022-04-15

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Kun FANG ,  Zhijun Guo

IPC: H01M50/553 ,  H01M50/533 ,  H01M50/188

Abstract: Embodiments of the present application provide a battery cell, a method and a system for manufacturing the battery cell, a battery, and an electrical device. The battery cell provided by the embodiments of the present application include: an electrode assembly comprising a first tab; a casing for accommodating the electrode assembly, the casing comprising a wall provided with an electrode lead-out hole; an electrode terminal mounted at the electrode lead-out hole; and a current collecting member positioned between the wall and the first tab and configured to connect the electrode terminal and the first tab. A first recess is provided at an end of the electrode terminal that faces the first tab, a side wall of the first recess is bent outward so that the electrode terminal is fixed to the wall, and the current collecting member is abutted against and connected to a bottom surface of the first recess.

公开(公告)号：US20230118321A1

公开(公告)日：2023-04-20

申请号：US17724587

申请日：2022-04-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO

IPC: H01M50/14 ,  H01M50/136 ,  H01M50/317 ,  H01M50/375 ,  H01M50/531

Abstract: The present application relates to a battery cell, a battery, a power consumption apparatus, and a manufacturing method and device of a battery cell. The battery cell includes: a shell comprising a wall part; an electrode assembly disposed within the shell; and an insulating member disposed between the electrode assembly and the wall part to isolate the wall part from the electrode assembly in an insulating manner. The insulating member is configured to elastically support the electrode assembly to buffer vibration of the electrode assembly within the shell.

公开(公告)号：US20240204381A1

公开(公告)日：2024-06-20

申请号：US18592859

申请日：2024-03-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO ,  Haizu JIN

IPC: H01M50/645 ,  H01M10/04 ,  H01M50/213 ,  H01M50/536 ,  H01M50/559

CPC classification number: H01M50/645 ,  H01M10/0404 ,  H01M10/0422 ,  H01M50/213 ,  H01M50/536 ,  H01M50/559 ,  H01M2220/20

Abstract: A battery cell includes a shell comprising a wall portion, an electrode terminal arranged on the wall portion and having a filling hole penetrating in an axial direction of the electrode terminal and comprising a first hole section and a second hole section closer to the interior of the battery cell than the first hole section and having a smaller hole diameter than the first hole section, and a sealing member configured to seal the filling hole. The sealing member includes a limiting protrusion, and body fitting with the first hole section in a sealing manner and including first and second surfaces opposite each other in the axial direction. The first surface faces the interior of the battery cell. The second surface faces away from the interior of the battery cell. The limiting protrusion is formed on the first surface and fits with the second hole section.

公开(公告)号：US20230291040A1

公开(公告)日：2023-09-14

申请号：US18320401

申请日：2023-05-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhisheng CHAI ,  Kun FANG ,  Qingkui CHI ,  Dongsheng SUN ,  Hui GU ,  Zhijun GUO

IPC: H01M50/169 ,  H01M50/533 ,  H01M50/552 ,  H01M50/204 ,  H01M10/0585

CPC classification number: H01M50/169 ,  H01M50/533 ,  H01M50/552 ,  H01M50/204 ,  H01M10/0585 ,  H01M2220/20

Abstract: A battery cell includes a housing, an electrode assembly, an end cover, and a current collecting member. The housing has an opening, the electrode assembly has a tab, the electrode assembly is configured to be accommodated in the housing, the end cover is configured to cover the opening, and the current collecting member is configured to connect the end cover to the tab to implement electrical connection between the end cover and the tab. The current collecting member is welded to the tab to form a first welded portion and a second welded portion, the current collecting member is welded to the end cover to form a third welded portion, the first welded portion is on an inner peripheral side of the third welded portion, and the second welded portion is on an outer peripheral side of the third welded portion.

公开(公告)号：US20230049457A1

公开(公告)日：2023-02-16

申请号：US17973741

申请日：2022-10-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG

IPC: H01M50/533 ,  H01M50/548 ,  H01M50/536 ,  H01M50/566 ,  H01M50/559 ,  H01M50/534

Abstract: A battery cell includes an electrode assembly including a first tab and a second tab located on two ends of the electrode assembly, respectively, in a first direction. The battery cell further includes a first electrode terminal and a second electrode terminal located on two sides of the electrode assembly, respectively, in the first direction, a first adapter configured to couple the first tab and the first electrode terminal, and a second adapter configured to couple the second tab and the second electrode terminal. The first adapter and the second adapter each comprise at least two non-bending portions and at least one bending portion each connecting two adjacent ones of the at least two non-bending portions. A number of the at least two non-bending portions of the second adapter is greater than a number of the at least two non-bending portions of the first adapter.

公开(公告)号：US20230411746A1

公开(公告)日：2023-12-21

申请号：US18242010

申请日：2023-09-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO ,  Haizu JIN

IPC: H01M50/169 ,  H01M50/358

CPC classification number: H01M50/169 ,  H01M2220/20 ,  H01M50/358

Abstract: A battery cell may include: a housing having an opening; an electrode assembly, accommodated in the housing; and an end cap, including a cap body and a protruding structure, where at least a part of the cap body may be disposed around the protruding structure and laser-welded to the housing so that the end cap fits and covers the opening. In a thickness direction of the end cap, the protruding structure may protrude from an inner surface of the cap body toward the electrode assembly, and block a laser beam during welding between the cap body and the housing. A first recess may be formed on the end cap at a position corresponding to the protruding structure, and recessed from an outer surface of the cap body toward the electrode assembly.

公开(公告)号：US20230299395A1

公开(公告)日：2023-09-21

申请号：US18201785

申请日：2023-05-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO

IPC: H01M50/169 ,  H01M50/107 ,  H01M50/538 ,  H01M50/152 ,  H01M10/0525

CPC classification number: H01M50/169 ,  H01M50/107 ,  H01M50/538 ,  H01M50/152 ,  H01M10/0525

Abstract: A battery cell may include: a housing, on which an opening is made; an electrode assembly, accommodated in the housing; and an end cap, configured to fit and cover the opening. The end cap may include a cap body and a protruding structure around the cap body, the protruding structure may protrude from an inner surface of the cap body toward the electrode assembly, and at least a part of the protruding portion may be located in the housing and configured to fit with the housing. A recess may be formed on the end cap at a position corresponding to the protruding structure, and the recess may be recessed from an outer surface of the cap body toward the electrode assembly and configured to release a stress while the protruding portion extends into the housing.

公开(公告)号：US20230207954A1

公开(公告)日：2023-06-29

申请号：US18117117

申请日：2023-03-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongsheng SUN ,  Kun FANG ,  Hui GU ,  Qingkui CHI

IPC: H01M50/342 ,  H01M50/119

CPC classification number: H01M50/3425 ,  H01M50/119

Abstract: A battery cell, a battery, an electric device, and a manufacturing device and method of battery cell are described. The battery cell includes a metal housing, an electrode assembly, and a conductive member, where the metal housing has an accommodating cavity; the electrode assembly is accommodated in the accommodating cavity, the electrode assembly includes a first tab, and the first tab is electrically connected to the metal housing; and the conductive member is disposed on an outer surface of the metal housing, and resistance of the conductive member is lower than that of the metal housing. In the charging and discharging process, current passes through the conductive member or passes through both the conductive member and the metal housing, in whichever cases, the resistance in the charging and discharging process of the battery cell is lower than that in the case of current passing through the metal housing only.

公开(公告)号：US20220352596A1

公开(公告)日：2022-11-03

申请号：US17863825

申请日：2022-07-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhisheng CHAI ,  Lei WANG ,  Linlin ZHU ,  Kun FANG ,  Dongsheng SUN

IPC: H01M50/342 ,  H01M50/166

Abstract: A battery cell includes a casing provided with openings at two ends of the casing in a first direction, a first end cap and a second end cap connected to the casing and configured to close the openings at the two ends of the casing, respectively, and a connecting piece disposed in the casing and configured to be connected to the first end cap or be connected to the first end cap and the second end cap. The battery cell is provided with a weak structure at one of the two ends. A connecting force between the connecting piece and the first end cap is greater than a connecting force between the connecting piece and the second end cap. A connecting position where the connecting piece is connected to the first end cap is located in an area surrounded by the weak structure.