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    ELECTRODE ASSEMBLY AND RELATED BATTERY, DEVICE, MANUFACTURING METHOD, AND MANUFACTURING DEVICE
    21.
    发明申请
    ELECTRODE ASSEMBLY AND RELATED BATTERY, DEVICE, MANUFACTURING METHOD, AND MANUFACTURING DEVICE 有权

    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.

    Positive electrode plate and electrochemical device
    23.
    发明授权
    Positive electrode plate and electrochemical device 有权

    公开(公告)号：US11133564B2

    公开(公告)日：2021-09-28

    申请号：US17043711

    申请日：2019-11-15

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Xing Li ,  Zhenhua Li ,  Haizu Jin

    IPC: H01M4/62 ,  H01M50/581 ,  H01M4/66 ,  H01M4/02

    Abstract: This application relates to a positive electrode plate and an electrochemical device. The positive electrode plate includes a current collector, a safety coating, a difficultly soluble layer and a positive active material layer, wherein the safety coating, the difficultly soluble layer and the positive active material layer are successively disposed on the current collector; wherein the safety coating includes a polymer matrix, a conductive material and an inorganic filler; wherein the difficultly soluble layer includes a binder and a conductive agent, and wherein the binder of the difficultly soluble layer has a solubility in an oil solvent smaller than the solubility of the polymer matrix of the safety coating in such oil solvent.

    BATTERY CELL, BATTERY, AND ELECTRIC DEVICE
    24.
    发明申请
    BATTERY CELL, BATTERY, AND ELECTRIC DEVICE 有权

    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.

    Binder compound and method for preparing same
    25.
    发明授权
    Binder compound and method for preparing same 有权

    公开(公告)号：US11952466B2

    公开(公告)日：2024-04-09

    申请号：US18381178

    申请日：2023-10-18

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Jianghui Lin ,  Yanjie Zhao ,  Xing Li ,  Haizu Jin

    IPC: C08G79/14 ,  H01M4/62

    CPC classification number: C08G79/14 ,  H01M4/623 ,  H01M2220/20

    Abstract: The present application relates to a binder compound of formula (I), a method for preparing the same, and an electrode sheet comprising the same. In formula (I), R1, R2, and R3 each independently represents an unsubstituted or substituted linear or branched alkyl with 1-6 carbon atoms, or an unsubstituted or substituted aryl with 6-20 carbon atoms; R4 represents —COOM; R5 represents a bridging oxo or bridging imino; each M independently represents one of Li, Na, K, Rb, and Cs; Z represents a linear or branched alkylene with 1-6 carbon atoms; m is an integer selected from 7,600 to 47,000; n is an integer selected from 1,520 to 94,000; and m/n=0.1-10.

    BATTERY AND POWER CONSUMING DEVICE
    29.
    发明申请
    BATTERY AND POWER CONSUMING DEVICE 有权

    公开(公告)号：US20230121633A1

    公开(公告)日：2023-04-20

    申请号：US18068524

    申请日：2022-12-20

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Yu Tang ,  Peng Wang ,  Xiayi Wu ,  Xiang Wang ,  Zhenhua Li ,  Xing Li

    IPC: H01M50/242 ,  H01M50/204 ,  H01M50/291 ,  H01M10/16

    Abstract: Embodiments provide a battery and a power consuming device. In some embodiments, the battery includes: a case assembly, including a case and fixed beams fixed in the case; a battery module, arranged in the case and including a plurality of battery cells; a first restraining component, configured to cover the battery module and fixed to the fixed beams; and a second restraining component, located on the side of the first restraining component away from the battery module and fixed to the fixed beams, wherein the second restraining component is provided with a weak area, and the second restraining component is configured to apply a restraining force to the first restraining component and to allow expansion of the battery cells in the weak area.

    Battery
    30.
    发明授权
    Battery 有权

    公开(公告)号：US11264611B2

    公开(公告)日：2022-03-01

    申请号：US16424020

    申请日：2019-05-28

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Haizu Jin ,  Zhenhua Li ,  Xing Li

    IPC: H01M4/36 ,  H01M4/62 ,  H01M4/02

    Abstract: This application relates to a battery comprising a positive electrode plate, a separator, and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and at least two layers of positive active material coated on at least one surface of the positive electrode current collector, and wherein an underlying positive active material layer in contact with the positive electrode current collector comprises a first positive active material, a first polymer material and a first conductive material; and wherein an upper positive active material layer in contact with the underlying positive active material layer and away from the positive electrode current collector comprises a second positive active material, a second polymer material and a second conductive material, and the first polymer material comprises fluorinated polyolefin and/or chlorinated polyolefin polymer material. The battery has good safety and improved electrical properties.

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