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：US20240186479A1

公开(公告)日：2024-06-06

申请号：US18441607

申请日：2024-02-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dejun XIAO ,  Chunpeng YU ,  Jiahua CHEN ,  Quanguo LI ,  Jingxuan SUN ,  Qian LIU

IPC: H01M4/04 ,  H01M4/02 ,  H01M10/647 ,  H01M50/209 ,  H01M50/249

CPC classification number: H01M4/0404 ,  H01M10/647 ,  H01M50/209 ,  H01M50/249 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative electrode plate includes a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector. The negative electrode film layer includes a middle coating region and edge coating regions located on two opposite sides of the middle coating region. Thickness A1 of the edge coating region in a fully-discharged state, thickness B1 of the edge coating region in a fully-charged state, thickness A2 of the middle coating region in the fully-discharged state, and thickness B2 of the middle coating region in the fully-charged state satisfy (B1−A1)/A1>(B2−A2)/A2.

公开(公告)号：US20230068186A1

公开(公告)日：2023-03-02

申请号：US17903677

申请日：2022-09-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/682 ,  H01M50/618 ,  H01M50/143 ,  H01M50/317 ,  H01M50/383

Abstract: A tank includes a plurality of independent accommodation cavities. Each of the accommodation cavities includes a corresponding fragile structure, and the fragile structures possess different packaging strengths.

公开(公告)号：US20230065566A1

公开(公告)日：2023-03-02

申请号：US17965281

申请日：2022-10-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/682 ,  H01M50/124 ,  H01M50/342

Abstract: Embodiments of this application provide a battery cell, which includes a housing and an electrode assembly. The electrode assembly is accommodated in the housing. A film structure is arranged at a position located on an inner wall of the housing and opposite to the electrode assembly. The film structure combines with the inner wall of the housing to form a capsule structure. An accommodation cavity is formed inside the capsule structure. In this way, the capsule structure is more space-efficient, and the battery cell is more structurally compact.

公开(公告)号：US20230046770A1

公开(公告)日：2023-02-16

申请号：US17980591

申请日：2022-11-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/609 ,  H01M50/102 ,  H01M50/204 ,  H01M50/673

Abstract: The present application discloses a battery cell, a battery and a power consumption apparatus. The battery cell may include: a housing filled with an electrolyte inside; at least one core assembly arranged in the housing and at least one closed liquid bladder holding the electrolyte, the liquid bladder being arranged in the housing, and at least being provided corresponding to a side wall of the core assembly; at least one weakened structure being provided on the liquid bladder. Under a condition that a pressure in the liquid bladder reaches a threshold value, the electrolyte in the liquid bladder may break through the weakened structure and flow out of the liquid bladder.