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：US20240313338A1

公开(公告)日：2024-09-19

申请号：US18669179

申请日：2024-05-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Quankun LI ,  Peng WANG ,  Haizu JIN

IPC: H01M50/342 ,  H01M10/04 ,  H01M50/133

CPC classification number: H01M50/3425 ,  H01M10/0404 ,  H01M50/133

Abstract: A battery cell includes a shell and an electrode assembly accommodated in the shell. The shell includes a wall portion, the wall portion includes a main body, a connecting portion and a reinforcing portion, the connecting portion surrounds an outer side of the reinforcing portion, and the main body surrounds an outer side of the connecting portion. The connecting portion is provided with a weakened region, and the battery cell is configured to rupture along the weakened region when an internal pressure of the battery cell reaches a threshold, so as to release the internal pressure. The maximum thickness of the reinforcing portion is greater than the maximum thickness of the main body so as to reduce deformation of the reinforcing portion under the internal pressure.

公开(公告)号：US20240258602A1

公开(公告)日：2024-08-01

申请号：US18604554

申请日：2024-03-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianfu HE ,  Qian LIU ,  Yonghuang YE ,  Quanguo LI ,  Xiaofu XU ,  Haizu JIN

IPC: H01M10/617 ,  H01M10/625 ,  H01M10/651 ,  H01M10/658 ,  H01M50/289

CPC classification number: H01M10/617 ,  H01M10/625 ,  H01M10/651 ,  H01M10/658 ,  H01M50/289 ,  H01M2220/20

Abstract: The present application provides a battery pack and a power consuming device. The battery pack includes a battery pack case; and first battery cells and second battery cells that are accommodated in the battery pack case, wherein compared with the second battery cells, the first battery cells are arranged at positions where heat exchange with surroundings is more likely to occur in the battery pack case. It is assumed that the first battery cells each have a capacity C1 and a direct-current impedance R1, wherein X1=C1*R1, the second battery cells each have a capacity C2 and a direct-current impedance R2, wherein X2=C2*R2, and X1 and X2 satisfy 1.1≤X1/X2≤2.0.

公开(公告)号：US20240154251A1

公开(公告)日：2024-05-09

申请号：US18409908

申请日：2024-01-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/474 ,  H01M50/107 ,  H01M50/477 ,  H01M50/533 ,  H01M50/566

CPC classification number: H01M50/474 ,  H01M50/107 ,  H01M50/477 ,  H01M50/533 ,  H01M50/566

Abstract: A current collecting component for a battery cell having two output poles with opposite polarities for outputting electrical energy. The current collecting component includes two current collectors, an insulator, and a limiting structure. The two current collectors are arranged opposite each other along a width direction of the current collecting component and are configured to connect to the two output poles, respectively. The insulator is configured to connect the two current collectors and is located at least partially between the two current collectors in the width direction to insulate the two current collectors from each other. The limiting structure is configured to restrict the current collectors from leaving the insulator in the width direction.

公开(公告)号：US20240145785A1

公开(公告)日：2024-05-02

申请号：US18409809

申请日：2024-01-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianfu HE ,  Qian LIU ,  Yonghuang YE ,  Haizu JIN ,  Tao ZHANG ,  Xueyang SUN

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M10/647 ,  H01M50/249

CPC classification number: H01M10/0587 ,  H01M10/0525 ,  H01M10/647 ,  H01M50/249 ,  H01M2220/20

Abstract: This application provides an electrode assembly, a battery cell, a battery, and an electric apparatus, and pertains to the field of battery technologies. The electrode assembly may include a negative electrode plate and a positive electrode plate. The negative electrode plate may include a negative electrode active substance layer, and a first electrolyte storage trough may be disposed on the negative electrode active substance layer. The positive electrode plate may include a positive electrode active substance layer, the positive electrode active substance layer and the negative electrode active substance layer may be disposed opposite each other in a first direction, and a second electrolyte storage trough may be disposed on the positive electrode active substance layer, the second electrolyte storage trough and the first electrolyte storage trough being disposed opposite each other in the first direction.

公开(公告)号：US20230369701A1

公开(公告)日：2023-11-16

申请号：US18357389

申请日：2023-07-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianfu HE ,  Yonghuang YE ,  Qian LIU ,  Jingxuan SUN ,  Xiaofu XU ,  Xueyang SUN ,  Haizu JIN

IPC: H01M50/242

CPC classification number: H01M50/242 ,  H01M2220/20

Abstract: This application discloses a battery unit. The battery unit includes a housing, at least one cell, and a buffer. The at least one cell is accommodated in the housing, the buffer is disposed corresponding to a side wall of the cell, and the buffer is provided with an accommodating cavity. A periphery of the accommodating cavity includes at least one packaging structure, the packaging structure includes at least one level of packaging region with a predetermined length. When pressure in the accommodating cavity exceeds packaging strength of the packaging structure, the packaging region is opened to form a buffer space that communicates with the accommodating cavity, reducing influence caused by swelling of the cell.

公开(公告)号：US20230307720A1

公开(公告)日：2023-09-28

申请号：US18327674

申请日：2023-06-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qian LIU ,  Quanguo LI ,  Yonghuang YE ,  Haizu JIN

IPC: H01M10/42 ,  H01M50/267 ,  H01M10/0585 ,  H01M50/471 ,  H01M4/80

CPC classification number: H01M10/4207 ,  H01M50/267 ,  H01M10/0585 ,  H01M50/471 ,  H01M4/80 ,  H01M2004/027

Abstract: A hybrid series battery module includes a first-type battery cell including a first negative electrode plate and a second-type battery cell including a second negative electrode plate. Energy density of the first-type battery cell is less than energy density of the second-type battery cell. A first interlayer spacing of a negative electrode active material of the first negative electrode plate is greater than a second interlayer spacing of a negative electrode active material of the second negative electrode plate. In a state of charge of 0%, a ratio of the first interlayer spacing to the second interlayer spacing falls within a range of greater than or equal to 1.005 and less than or equal to 1.600.

公开(公告)号：US20230163419A1

公开(公告)日：2023-05-25

申请号：US18094415

申请日：2023-01-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianfu HE ,  Yonghuang YE ,  Qian LIU ,  Xueyang SUN ,  Tao ZHANG ,  Haizu JIN

IPC: H01M50/474

CPC classification number: H01M50/474

Abstract: A battery cell may include a housing, an electrode assembly, and a first support structure. The housing may be provided with an accommodating cavity. The electrode assembly may be accommodated in the accommodating cavity, and include a main body portion and a thinned portion. At least one end of the main body portion in a first direction may be connected to the thinned portion. The first support structure may be arranged corresponding to the thinned portion, and configured to support the thinned portion when the electrode assembly is expanded.

公开(公告)号：US20230070894A1

公开(公告)日：2023-03-09

申请号：US17985813

申请日：2022-11-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo LI ,  Yonghuang YE ,  Chengdu LIANG ,  Haizu JIN ,  Qian LIU ,  Xia HU

IPC: H01M50/342 ,  H01M50/375 ,  H01M10/613 ,  H01M10/48

Abstract: This application relates to the field of energy storage technologies, and provides a battery, an apparatus, a preparation method of battery, and a preparation apparatus of battery. The battery includes a first battery cell and a second battery cell. The first battery cell includes a first pressure relief mechanism, the second battery cell includes a second pressure relief mechanism, an energy density of the first battery cell is greater than an energy density of the second battery cell, and an area of the first pressure relief mechanism is greater than an area of the second pressure relief mechanism. The apparatus includes the foregoing battery.

公开(公告)号：US20230066562A1

公开(公告)日：2023-03-02

申请号：US18054698

申请日：2022-11-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengdu LIANG ,  Xiaofu XU ,  Yonghuang YE ,  Haizu JIN ,  Wenwei CHEN ,  Qian LIU

IPC: H01M50/578 ,  H01M50/209 ,  H01M50/581

Abstract: A battery includes a protective box provided with a guiding channel and a plurality of battery cells in the protective box. The plurality of battery cells include a first battery cell and a second battery cell adjacent to each other. The first battery cell includes a pressure relief end provided with a pressure relief mechanism. The pressure relief mechanism is configured to actuate release of internal pressure of the first battery cell in response to the internal pressure or an internal temperature of the first battery cell reaching a threshold. The guiding channel is configured to guide emissions released from the pressure relief mechanism. The pressure relief end of the first battery cell is staggered with one end of the second battery cell that is close to the pressure relief end, in a direction leaving the guiding channel.