公开(公告)号：US20240283099A1

公开(公告)日：2024-08-22

申请号：US18642832

申请日：2024-04-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu Xu ,  Shaojun Niu ,  Xing Li

IPC: H01M50/528 ,  H01M10/04 ,  H01M50/103 ,  H01M50/209 ,  H01M50/55 ,  H01M50/588

CPC classification number: H01M50/528 ,  H01M10/0404 ,  H01M50/103 ,  H01M50/209 ,  H01M50/55 ,  H01M50/588

Abstract: A battery cell, a battery, a power consumption device, and a method and device for producing a battery cell are provided. The battery cell includes: a housing which has an accommodating cavity and an opening at one end. The housing has a first wall which is adjacent to the opening; an electrode terminal, disposed on the first wall; an electrode assembly, accommodated in the accommodating cavity and having a tab; and a connecting component which is configured to electrically connect the electrode terminal and the tab and includes a first portion and a second portion that are relatively bent. The first portion is configured to be electrically connected to the electrode terminal, the second portion is configured to be electrically connected to the tab, and the tab is located between the second portion and the opening or the second portion is located between the tab and the opening.

公开(公告)号：US20230411761A1

公开(公告)日：2023-12-21

申请号：US18460669

申请日：2023-09-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu Xu

IPC: H01M50/242 ,  H01M50/209 ,  H01M50/291 ,  H01M10/653 ,  H01M10/04 ,  H01M50/342

CPC classification number: H01M50/242 ,  H01M50/209 ,  H01M50/291 ,  H01M10/653 ,  H01M10/0404 ,  H01M50/3425 ,  H01M2220/20

Abstract: Embodiments provide a battery, an electric apparatus, a method for manufacturing battery, and an apparatus for manufacturing battery, so as to enhance stiffness and strength of the battery. The battery includes: a box; and at least one row of battery cells accommodated in the box, where the battery cell is a polyhedral structure and includes a first wall and a second wall connected to each other, the first wall being perpendicular to a first direction, the second wall being a wall with a largest area in the battery cell and oblique to the first direction, and the first direction being parallel to the direction of gravity. Each row of battery cells in the at least one row of battery cells are arranged along a second direction perpendicular to the first direction, and adjacent ones of the battery cells are attached to each other via the second wall.

公开(公告)号：US20220384918A1

公开(公告)日：2022-12-01

申请号：US17817998

申请日：2022-08-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Hu Xu ,  Xing Li ,  Miaomiao Ren ,  Haizu Jin

IPC: H01M50/538 ,  H01M10/0587

Abstract: An electrode assembly and related battery, device, manufacturing method, and manufacturing device are provided. In some embodiments, the electrode assembly includes: a first electrode plate and a second electrode plate that are of opposite polarities, where an active material region of the first electrode plate and an active material region of the second electrode plate are wound to form a body portion, a non-active material region of the first electrode plate or a non-active material region of the second electrode plate is wound to form a tab, and the tab includes a bend portion bent against the body portion; and a guide piece. At least a part of the guide piece is located in the bend portion, and the guide piece is configured to guide an electrolytic solution into an interior of the body portion.

公开(公告)号：US20220376371A1

公开(公告)日：2022-11-24

申请号：US17818001

申请日：2022-08-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Hu Xu ,  Xing Li ,  Haizu Jin ,  Shaojun Niu ,  Miaomiao Ren

IPC: H01M50/70 ,  H01M10/0587 ,  H01M10/0525 ,  H01M50/528 ,  H01M50/107 ,  H01M50/152 ,  H01M50/627

Abstract: An electrode assembly, a battery cell, a battery, a device, a manufacturing method, and a manufacturing device are provided. In some embodiments, the electrode assembly includes at least two electrode plates, including a first electrode plate and a second electrode plate that are of opposite polarities. The first electrode plate and the second electrode plate are wound around a winding axis to form a multilayer structure. The multilayer structure includes an accommodation cavity extending along a direction of the winding axis. The accommodation cavity is configured to accommodate an electrolytic solution. The electrode assembly further includes at least one guide path extending along a first direction. The first direction is a direction perpendicular to the winding axis. The guide path is configured to guide the electrolytic solution out of the accommodation cavity.

公开(公告)号：US11469481B2

公开(公告)日：2022-10-11

申请号：US16879920

申请日：2020-05-21

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Hu Xu ,  Youlei Lai ,  Yuanbao Chen ,  Miaomiao Ren ,  Donglai Zheng ,  Haizu Jin

IPC: H01M50/54 ,  H01M4/70 ,  H01M10/04

Abstract: A battery unit includes: an electrode assembly, including a main body portion, and a negative tab and a positive tab, which respectively extend out from both ends of the main body portion along the length direction; a negative terminal and a positive terminal, arranged at the top of the electrode assembly; a first current collector for electrically connecting the negative tab with the negative terminal; and a second current collector for electrically connecting the positive tab with the positive terminal. The first current collector includes a first guiding plate. The first guiding plate is of a flat plate structure, and the negative tab is bent to one side of the first guiding plate away from the main body portion and is connected with the first guiding plate.

公开(公告)号：US10741818B2

公开(公告)日：2020-08-11

申请号：US16212446

申请日：2018-12-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haizu Jin ,  Hu Xu

IPC: H01M2/26 ,  H01M4/70 ,  H01M10/0587

Abstract: The present disclosure discloses a cell and a battery using the same. The cell comprises a positive electrode plate and a negative electrode plate which each are provided with an uncoated current collector, the uncoated current collector of the positive electrode plate and the uncoated current collector of the negative electrode plate each are respectively welded with an electrical conductive piece used to connect with an external circuit. The uncoated current collector of the positive electrode plate is punched to form an electrolyte transmission channel and/or the uncoated current collector of the negative electrode plate is punched to form an electrolyte transmission channel; a punching manner of the electrolyte transmission channel comprises following one manner or two manners: one manner is that an edge region of the uncoated current collector which is not aligned with the electrical conductive piece is punched to form an semi-closed channel, the other manner is that the uncoated current collector is punched to form a hole-like all-closed channel. In comparison with the technology in background, by that the uncoated current collector is punched to form the electrolyte transmission channel, electrolyte infiltration speed is improved, at the same time the rate performance and the cycle performance of the battery are promoted.

公开(公告)号：US20240396128A1

公开(公告)日：2024-11-28

申请号：US18797531

申请日：2024-08-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Liangfan Xu ,  Qianqian Zhang ,  Hu Xu ,  Xing Li ,  Shaojun Niu ,  Haizu Jin

IPC: H01M50/15 ,  H01M50/103 ,  H01M50/249 ,  H01M50/529 ,  H01M50/55 ,  H01M50/553 ,  H01M50/566

Abstract: This application provides a battery cell, a battery, and an electric device. The battery cell includes: an electrode assembly; a housing, where the housing has a first opening for accommodating the electrode assembly; an end cover configured to cover the first opening, where the end cover has a protruding structure, the protruding structure protrudes along a first direction away from the interior of the battery cell, and the first direction is a thickness direction of the end cover; and an electrode terminal, where the electrode terminal has a protruding portion protruding from the protruding structure along a second direction, and the second direction is perpendicular to the first direction. The battery cells are interconnected in the second direction through the protruding portions of the electrode terminals, which can enhance the strength of the connection between the battery cells.

公开(公告)号：US11949128B2

公开(公告)日：2024-04-02

申请号：US17317854

申请日：2021-05-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu Xu ,  Miaomiao Ren ,  Yuanbao Chen ,  Long Xu ,  Donglai Zheng ,  Lingbo Zhu ,  Yongshou Lin

IPC: H01M50/54 ,  H01M50/50 ,  H01M50/564

CPC classification number: H01M50/54 ,  H01M50/50 ,  H01M50/564

Abstract: This application provides a current collecting member, a secondary battery, and a fabrication method. The secondary battery includes an electrode assembly, a housing, a top cover assembly and current collecting members. The electrode assembly includes a main body portion and a first tab extending from an end of the main body portion along a transverse direction. The top cover assembly includes a top cover plate and a first electrode terminal disposed on the top cover plate connected to the housing. The current collecting member is connected to the first tab and the first electrode terminal. The current collecting member includes a substrate and a support plate, the substrate being provided at a side of the main body portion along a transverse direction, the support plate extending from an end part of the substrate in a longitudinal direction, and the first tab being connected to the support plate.

公开(公告)号：US20220367921A1

公开(公告)日：2022-11-17

申请号：US17875163

申请日：2022-07-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yi Zheng ,  Haiyang Kang ,  Hu Xu ,  Chengdong Sun

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M50/102 ,  H01M4/04 ,  H01M4/134

Abstract: The embodiments of the application provide an electrode assembly and a manufacturing method and manufacturing system therefor, a battery cell and a battery. The electrode assembly includes a negative pole piece and a positive pole piece, the negative pole piece and the positive pole piece are wound to form a winding structure including a bending region and a straight region. Both the negative pole piece and the positive pole piece include a plurality of bent portions located in the bent area and a plurality of straight portions located in the straight area. At least one of the bent portions of the positive pole piece is a first bent portion, and/or at least one of the bent portions of the negative pole piece is a second bent portion.