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    Electrolyte and electrochemical device
    13.
    发明授权
    Electrolyte and electrochemical device 有权

    公开(公告)号：US11527776B2

    公开(公告)日：2022-12-13

    申请号：US17064959

    申请日：2020-10-07

    Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

    Inventor： Kefei Wang ,  Qiao Zeng ,  Liangzhen Xiao ,  Fei Wu

    IPC: H01M10/0566 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

    Abstract: An electrolyte includes a dinitrile compound, a trinitrile compound, and propyl propionate. Based on the total weight of the electrolyte, the content X of the nitrile compound and the content Y of the trinitrile compound meet the conditions represented by Formula (1) and Formula (2): {about 2 wt %≤(X+Y)≤about 11 wt % . . . (1), about 0.1≤(X/Y)≤about 8 . . . (2)}. The trinitrile compound includes at least one selected from the group consisting of: 1,3,5-pentanetricarbonitrile; 1,2,3-propanetrinitrile; 1,3,6-hexanetricarbonitrile; 1,2,6-hexanetricarbonitrile; 1,2,3-tris(2-cyanoethoxy)propane; 1,2,4-tris(2-cyanoethoxy)butane; 1,1,1-tris(cyanoethoxymethylene)ethane; 1,1,1-tris(cyanoethoxymethylene)propane; 3-methyl-1,3,5-tris(cyanoethoxy)pentane; 1,2,7-tris(cyanoethoxy)heptane; 1,2,6-tris(cyanoethoxy)hexane; and 1,2,5-tris(cyanoethoxy)pentane. The electrolyte is capable of effectively inhibiting the increase in DC internal resistance of an electrochemical device so that the electrochemical device has excellent cycle and storage performance.

    Flexible batteries for wearable devices
    14.
    发明授权
    Flexible batteries for wearable devices 有权

    公开(公告)号：US10998601B2

    公开(公告)日：2021-05-04

    申请号：US16125378

    申请日：2018-09-07

    Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

    Inventor： Liangzhen Xiao ,  Qiao Zeng

    IPC: H01M50/502 ,  H01M50/531

    Abstract: A battery for powering a wearable device comprises a first cell, a second cell interconnected with the first cell, and a connection electrically coupled between the first cell and the second cell. The connection extends from the first cell to the second cell along a first direction. A length of the connection along the first direction is greater than a distance between the first cell and the second cell. In some embodiments, the connection comprises a folded structure configured to accommodate a dimensional change of the battery when bending the wearable device.

    WOUND ELECTRODE ASSEMBLY
    15.
    发明申请
    WOUND ELECTRODE ASSEMBLY 审中-公开

    公开(公告)号：US20200168873A1

    公开(公告)日：2020-05-28

    申请号：US16430409

    申请日：2019-06-03

    Applicant: Ningde Amperex Technology Limited

    Inventor： Qiao Zeng ,  Kefei Wang ,  Liangzhen Xiao

    IPC: H01M2/16 ,  H01M10/04

    Abstract: The embodiments of the present application provides a wound electrode assembly formed by winding a first electrode sheet, a second electrode sheet, and an isolating membrane disposed therebetween. The wound electrode assembly includes: a first surface having a first protrusion in the thickness direction of the wound electrode assembly; a first wound electrode assembly; a second wound electrode assembly wrapping the first wound electrode assembly, the first wound electrode assembly and the second wound electrode assembly sharing the first electrode sheet and the second electrode sheet; an adhesive layer disposed between the first electrode sheet and the isolating membrane, and/or between the second electrode sheet and the isolating membrane. The purpose of the present application is at least to provide a wound electrode assembly capable of reducing the risk of misalignment of the internal structures of the electrode assembly during the falling, and retaining the shape of the electrode assembly.

    ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE CONTAINING SAME
    20.
    发明申请
    ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE CONTAINING SAME 有权

    公开(公告)号：US20230140763A1

    公开(公告)日：2023-05-04

    申请号：US18090808

    申请日：2022-12-29

    Applicant: Ningde Amperex Technology Limited

    Inventor： Liangzhen Xiao ,  Qiaoshu Hu ,  Qiao Zeng

    IPC: H01M50/595 ,  H01M50/538 ,  H01M50/586

    Abstract: An electrochemical device includes: an electrode assembly and a first adhesive tape. The electrode assembly includes a body portion and a first metal portion. The body portion includes a first part and a second part, the first part is electrically connected to the first metal portion. A junction between the first part and the first metal portion in the first direction is a first boundary line, and a junction between the first part and the second part is a second boundary line. The first adhesive tape includes a first tape edge. The first adhesive tape is disposed on the first surface and the third surface. Viewed from a direction perpendicular to the first surface, the first tape edge is located between the first boundary line and the second boundary line.

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