公开(公告)号：US20240380039A1

公开(公告)日：2024-11-14

申请号：US18783799

申请日：2024-07-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Denghua LIN ,  Xinxiang CHEN ,  Long CHEN ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

IPC: H01M50/171 ,  H01M50/198 ,  H01M50/636

Abstract: The present application provides a battery top cover, a top cover assembly, a battery cell, a battery, and a power consuming device. The battery top cover includes: a cover body and at least one mounting hole formed on the cover body. The mounting hole is configured to receive a hot melt of an insulating member, the mounting hole has a bottom wall and a side wall connected to the bottom wall, an end of the side wall away from the bottom wall has an opening, and the bottom wall is provided with a first protrusion protruding toward the opening. The first protrusion is configured to contact with the hot melt in the insulating member, so that energy may be concentrated to the first protrusion during an ultrasonic hot melting process, enabling the hot melt to be melted quickly and filled into the mounting hole.

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：US20220209340A1

公开(公告)日：2022-06-30

申请号：US17585110

申请日：2022-01-26

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang CHEN ,  Yulian ZHENG ,  Shoujun HUANG ,  Peng WANG

IPC: H01M50/147 ,  H01M10/04

Abstract: An end cover assembly, a battery cell and an electrolyte injection method therefor, a battery, and a power consumption device are provided. The end cover assembly may include an end cover provided with a through hole for injecting an electrolyte and an accommodating portion; a seal configured to seal the through hole; and a cover body covering at least part of the seal, the cover body including a limiting portion, the limiting portion being located within the accommodating portion to restrict the cover body from separating from the end cover, and the cover body being movable together with the seal by movement of the limiting portion relative to the accommodating portion, wherein when the cover body moves to a first position, the seal covers the through hole, and when the cover body moves to a second position, the seal avoids the through hole.

公开(公告)号：US20220006145A1

公开(公告)日：2022-01-06

申请号：US17478888

申请日：2021-09-18

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Huasheng SU ,  Shoujun HUANG ,  Xinxiang CHEN ,  Yulian ZHENG ,  Peng WANG

IPC: H01M50/147 ,  H01M50/176 ,  H01M50/528 ,  H01M50/591

Abstract: The present disclosure relates to a cap assembly and a secondary battery. The cap assembly includes a cap plate, an electrode terminal, a fixing member and a connection member. The cap plate includes an electrode lead-out hole, the electrode terminal includes a terminal board, the terminal board is located at a side of the cap plate and covers the electrode lead-out hole, the fixing member at least partially surrounds the terminal board to fix the terminal board to the fixing member, the connection member is separated from the electrode terminal by the fixing member, and the connection member is connected with the cap plate. The connection member includes a main body, the main body is provided with a first groove opened downwardly along a top of the main body, and a part of the fixing member is located in the first groove.

公开(公告)号：US20210234219A1

公开(公告)日：2021-07-29

申请号：US15733847

申请日：2020-03-24

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu LIANG ,  Kai WU ,  Xinxiang CHEN ,  Shoujun HUANG ,  Baisong CHEN ,  Huasheng SU ,  Guowei LI

IPC: H01M50/15 ,  H01M50/176 ,  H01M50/547 ,  H01M50/188 ,  H01M50/593 ,  H01M10/0525

Abstract: The present disclosure relates to a top cover assembly of a secondary battery and a secondary battery, wherein the top cover assembly includes a top cover plate, provided with a through hole; an electrode terminal, covering the through hole; an insulating plate, wherein at least part of the insulating plate is arranged on a side of the top cover plate away from the electrode terminal; a seal, wherein at least part of the seal is arranged between the top cover plate and the electrode terminal; and an insulator, wherein at least part of the insulator is arranged between the top cover plate and the insulating plate; wherein the insulator and the seal at least jointly enclose a side wall of the through hole and an area, close to the through hole, on an upper surface of the top cover plate.

公开(公告)号：US20240304965A1

公开(公告)日：2024-09-12

申请号：US18666661

申请日：2024-05-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Long CHEN ,  Denghua LIN ,  Shoujun HUANG ,  Xinxiang CHEN ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

IPC: H01M50/682 ,  B60L50/64 ,  H01M10/04 ,  H01M50/103 ,  H01M50/15 ,  H01M50/209 ,  H01M50/342 ,  H01M50/474 ,  H01M50/627

CPC classification number: H01M50/682 ,  B60L50/64 ,  H01M10/0409 ,  H01M10/0431 ,  H01M10/049 ,  H01M50/103 ,  H01M50/15 ,  H01M50/209 ,  H01M50/3425 ,  H01M50/474 ,  H01M50/627 ,  H01M2220/20

Abstract: Some embodiments of this application provide a battery cell, a battery, an electrical device, and a method and equipment for manufacturing a battery cell. The battery cell includes: a shell, where the shell includes an accommodation cavity and a first wall, and an injection port is created on the first wall; an electrode assembly, accommodated in the accommodation cavity; and a flow guide, disposed between the first wall and the electrode assembly. The flow guide includes a liquid collection tank. An opening of the liquid collection tank is oriented toward the first wall. A through-hole is created on a bottom wall of the liquid collection tank. The liquid collection tank is configured to collect an electrolyte solution injected through the injection port. The electrolyte solution in the liquid collection tank flows to the electrode assembly through the through-hole.

公开(公告)号：US20240186646A1

公开(公告)日：2024-06-06

申请号：US18441390

申请日：2024-02-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/342 ,  H01M50/147 ,  H01M50/186 ,  H01M50/367

CPC classification number: H01M50/3425 ,  H01M50/186 ,  H01M50/367 ,  H01M50/147 ,  H01M2220/20

Abstract: A battery cell, a cover assembly, a battery, an electricity-consuming apparatus, a method and a device of manufacturing the battery cell are provided by the present application. The battery cell includes an electrode assembly; a casing accommodating the electrode assembly, in which the casing includes a wall portion, the wall portion includes a stepped hole, the stepped hole includes a first hole segment, a second hole segment and a first stepped face; a sealing member, in which a first sealing interface is formed between the sealing member and the first stepped face, the first sealing interface surrounds the first hole segment, and the sealing member includes a ventilating hole communicating with the first hole segment; a gas-ventilating film including a body and a convex portion, in which the body covers the ventilating hole, a second sealing interface is formed between the body and the sealing member.

公开(公告)号：US20230395952A1

公开(公告)日：2023-12-07

申请号：US18449511

申请日：2023-08-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Denghua LIN ,  Xinxiang CHEN ,  Zhijun GUO ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

IPC: H01M50/547 ,  H01M50/169

CPC classification number: H01M50/547 ,  H01M50/169 ,  H01M2220/20

Abstract: A battery cell includes a first surface, a second surface, and a first electrode terminal. A first region of an edge of the first surface is recessed to form a first recess. The second surface is configured to arrange the first electrode terminal. The first surface and the second surface are perpendicular to a first direction. The first electrode terminal protrudes from the second surface in the first direction and faces the first recess. In the first direction, a depth of the first recess is greater than a height of the first electrode terminal, and a projection area of the first recess on the first surface is greater than a projection area of the first electrode terminal on the first surface.

公开(公告)号：US20220384916A1

公开(公告)日：2022-12-01

申请号：US17564598

申请日：2021-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Yulian ZHENG ,  Xinxiang CHEN ,  Liangfan XU ,  Peng WANG ,  Haizu JIN

IPC: H01M50/536 ,  H01M50/147

Abstract: The embodiments of this application provide a battery cell, a battery, an electrical device, and a battery cell manufacturing method and device, which pertains to the technical field of batteries. The battery cell includes an electrode assembly, a housing, an end cover assembly, and a support piece. The electrode assembly includes a main body and tabs. The housing has an opening and is used to accommodate the electrode assembly. The end cover assembly is used to cover the opening. The support piece is located between the main body and the end cover assembly, the tabs are bent around the support piece, and the support piece is configured to prevent the main body from moving along a direction facing the end cover assembly.

公开(公告)号：US20240396173A1

公开(公告)日：2024-11-28

申请号：US18795695

申请日：2024-08-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lulu BAI ,  Xinxiang CHEN ,  Ningsheng WU ,  Quankun LI ,  Ting ZHENG ,  Wenlin ZHOU

IPC: H01M50/463 ,  H01M10/04 ,  H01M50/593

Abstract: A battery cell includes a shell, an electrode assembly, and an insulator; the shell includes a bottom wall and a side wall disposed at a periphery of the bottom wall; the electrode assembly is accommodated in the shell; the insulator includes a first insulating portion and a second insulating portion that are connected, the first insulating portion is used for separating the electrode assembly from the bottom wall, the first insulating portion is provided with a through hole, and the second insulating portion is used for separating the electrode assembly from the side wall; and the insulator further includes a folding portion, which is disposed on the first insulating portion in a foldable manner, and is configured to be stacked with the first insulating portion to cover the through hole.