公开(公告)号：US20230261351A1

公开(公告)日：2023-08-17

申请号：US18307338

申请日：2023-04-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yulian ZHENG ,  Xiaoping ZHANG ,  Peng WANG ,  Zhanyu SUN

IPC: H01M50/593 ,  H01M50/586 ,  H01M50/533 ,  H01M50/547 ,  H01M50/172 ,  H01M50/15

CPC classification number: H01M50/593 ,  H01M50/586 ,  H01M50/533 ,  H01M50/547 ,  H01M50/172 ,  H01M50/15

Abstract: The present disclosure relates to a battery cell to alleviate the problem of impurities falling into an electrode assembly. Wherein, the battery cell includes: an electrode assembly including a tab and a cell body, wherein the tab is connected to the cell body; a cover plate assembly including an electrode terminal and a cover plate, wherein the electrode terminal is disposed on the cover plate; a connecting sheet connected between the tab and the electrode terminal, the connecting sheet includes a first connecting portion and a second connecting portion, wherein the first connecting portion is connected to the tab, and the second connecting portion is connected to the electrode terminal; an insulating pallet disposed between the cell body and the connecting sheet; and an insulation member disposed between the insulating pallet and the second connecting portion.

公开(公告)号：US20240363976A1

公开(公告)日：2024-10-31

申请号：US18764651

申请日：2024-07-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenwei CHEN ,  Haibo KE ,  Xiaoping ZHANG ,  Quankun LI ,  Kaihuan YANG

IPC: H01M50/533 ,  H01M50/103 ,  H01M50/55 ,  H01M50/583

CPC classification number: H01M50/533 ,  H01M50/103 ,  H01M50/55 ,  H01M50/583 ,  H01M2200/103 ,  H01M2220/20

Abstract: Provided are a connecting assembly, a battery cell, a battery, and a power consumption device. The connecting assembly is used for a battery cell. The connecting assembly includes: a connector, including a first connecting portion for connecting a tab of an electrode assembly, a second connecting portion for connecting an electrode terminal, and a third connecting portion for connecting the first connecting portion and the second connecting portion, where a fusing portion is formed between the first connecting portion and the third connecting portion, and the third connecting portion has a first surface facing the electrode assembly; a first insulator wrapping the fusing portion; and a second insulator covering at least a portion of the first surface, where the second insulator and the first insulator are integrally formed.

公开(公告)号：US20210249723A1

公开(公告)日：2021-08-12

申请号：US16977780

申请日：2019-11-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yulian ZHENG ,  Xiaoping ZHANG ,  Peng WANG ,  Zhanyu SUN

IPC: H01M50/204 ,  H01M50/148 ,  H01M50/183 ,  H01M50/543 ,  H01M50/593

Abstract: The present disclosure provides a battery cell, a battery module, a battery pack, a device using the battery cell as a power source, and an assembling method of the battery cell, wherein the battery cell comprising an electrode assembly (20) and an insulating support plate (50), the electrode assembly (20) comprises a main body portion (22) and a tab (21) connected to the main body portion (22), the insulating support plate (50) comprises a first support portion (51) and a second support portion (52) connected to the first support portion (51), the first support portion (51) protrudes in a direction approaching the main body portion (22) relative to the second support portion (52) such that a first gap is formed between the second support portion (52) and the main body portion (22), and at least a portion of the tab (21) is located in the first gap. The first gap formed between the second support portion and the main body portion can accommodate at least a portion of the tab to effectively protect the tab, prevent the tab from being compressed, reduce damages to the tab, and increase the service life of the battery.

公开(公告)号：US20240097209A1

公开(公告)日：2024-03-21

申请号：US18526525

申请日：2023-12-01

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yukun WU ,  Xiaoping ZHANG ,  Xiaoming GE

IPC: H01M10/42 ,  H01M50/46

CPC classification number: H01M10/4235 ,  H01M50/46 ,  H01M10/0525

Abstract: This application provides a battery cell, a battery, an electric apparatus, and a manufacturing method and device of battery cell. The battery cell includes an end cover and a housing, the end cover and the housing forming an accommodating cavity; an electrode assembly accommodated in the accommodating cavity; an insulator configured to isolate the end cover from the electrode assembly; and a protective film fitting around outer circumference of the electrode assembly, the protective film and the insulator being fit together. The protective film and the insulator being fit together does not require hot-melt connection during assembly, thereby avoiding drawing in over-melting, falling off in under-melting, and the like of the protective film caused by hot-melt connection.

公开(公告)号：US20230093863A1

公开(公告)日：2023-03-30

申请号：US17965057

申请日：2022-10-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shoujun HUANG ,  Peng WANG ,  Yulian ZHENG ,  Xiaoping ZHANG ,  Yanyu LIU ,  Xinxiang CHEN

IPC: H01M50/342

Abstract: Described is a pressure relief mechanism, a battery cell, a battery, an electric apparatus, and a manufacturing method thereof. A pressure relief mechanism is provided on a housing plate of a battery cell and includes: a connecting portion, where the connecting portion is located at an outer peripheral region of the pressure relief mechanism and is configured to connect the housing plate; a first part, where an end of the first part is connected to the connecting portion, and another end protrudes obliquely toward an interior of the battery cell; a weak portion, where the weak portion is provided at the protruding end of the first part; and a second part, where an outer edge region of the second part is connected to the weak portion, and the outer edge region extends obliquely away from the interior of the battery cell.

公开(公告)号：US20210242549A1

公开(公告)日：2021-08-05

申请号：US17058490

申请日：2019-11-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yulian ZHENG ,  Xiaoping ZHANG ,  Peng WANG ,  Zhanyu SUN

IPC: H01M50/593 ,  H01M50/172 ,  H01M50/547 ,  H01M50/15 ,  H01M50/533 ,  H01M50/586

Abstract: The present disclosure relates to a battery cell to alleviate the problem of impurities falling into an electrode assembly. Wherein, the battery cell includes: an electrode assembly including a tab and a cell body, wherein the tab is connected to the cell body; a cover plate assembly including an electrode terminal and a cover plate, wherein the electrode terminal is disposed on the cover plate; a connecting sheet connected between the tab and the electrode terminal, the connecting sheet includes a first connecting portion and a second connecting portion, wherein the first connecting portion is connected to the tab, and the second connecting portion is connected to the electrode terminal; an insulating pallet disposed between the cell body and the connecting sheet; and an insulation member disposed between the insulating pallet and the second connecting portion.

公开(公告)号：US20240222753A1

公开(公告)日：2024-07-04

申请号：US18608314

申请日：2024-03-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yukun WU ,  Xiaoping ZHANG ,  Wenzhu XU

IPC: H01M50/169 ,  H01M50/103 ,  H01M50/15

CPC classification number: H01M50/169 ,  H01M50/103 ,  H01M50/15

Abstract: A top cap assembly includes a top cap plate, a mounting piece, and a protection film. The top cap plate includes an inner side and an outer side disposed opposite to each other along a thickness direction of the top cap plate, the inner side and the outer side are spaced apart from each other to form a receptacle in between, and the receptacle communicates with an outside space. The mounting piece is disposed protrusively in the receptacle and comprising a fixed end and a free end disposed opposite to each other. The fixed end is disposed on a wall of the receptacle, and the free end extends along the thickness direction of the top cap plate and is spaced apart from the wall of the receptacle to form a threading clearance. One end of the protection film is attached to the mounting piece through the threading clearance.

公开(公告)号：US20240097143A1

公开(公告)日：2024-03-21

申请号：US18511585

申请日：2023-11-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yulei FAN ,  Yiheng WANG ,  Xiaoming GE ,  Manman WANG ,  Yujie CHEN ,  Xiaoping ZHANG

IPC: H01M4/78

CPC classification number: H01M4/78

Abstract: A battery unit includes an electrode assembly and a support component. The electrode assembly includes a positive electrode plate and a negative electrode plate that have opposite polarities, and a separator separating the positive electrode plate and the negative electrode plate. The electrode assembly is wound around an outer periphery of the support component. An outer peripheral wall surface of the support component includes a first arc surface and a second arc surface. A first end of the first arc surface is connected to a first end of the second arc surface, and a second end of the first arc surface is spaced apart from a second end of the second arc surface so as to form a step region on the outer peripheral wall surface. The step region is configured to accommodate at least part of the electrode assembly.

公开(公告)号：US20230261350A1

公开(公告)日：2023-08-17

申请号：US18307232

申请日：2023-04-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yulian ZHENG ,  Xiaoping ZHANG ,  Peng WANG ,  Zhanyu SUN

IPC: H01M50/593 ,  H01M50/586 ,  H01M50/533 ,  H01M50/547 ,  H01M50/172 ,  H01M50/15

CPC classification number: H01M50/593 ,  H01M50/586 ,  H01M50/533 ,  H01M50/547 ,  H01M50/172 ,  H01M50/15

Abstract: The present disclosure relates to a battery cell to alleviate the problem of impurities falling into an electrode assembly. Wherein, the battery cell includes: an electrode assembly including a tab and a cell body, wherein the tab is connected to the cell body; a cover plate assembly including an electrode terminal and a cover plate, wherein the electrode terminal is disposed on the cover plate; a connecting sheet connected between the tab and the electrode terminal, the connecting sheet includes a first connecting portion and a second connecting portion, wherein the first connecting portion is connected to the tab, and the second connecting portion is connected to the electrode terminal; an insulating pallet disposed between the cell body and the connecting sheet; and an insulation member disposed between the insulating pallet and the second connecting portion.

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.