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    BATTERY
    3.
    发明公开
    BATTERY 审中-公开

    公开(公告)号：US20230246247A1

    公开(公告)日：2023-08-03

    申请号：US18188708

    申请日：2023-03-23

    Applicant: Ningde Amperex Technology Limited

    Inventor： Liangzhen XIAO ,  Qiao ZENG ,  Qiaoshu HU

    IPC: H01M10/0587 ,  H01M10/0525 ,  H01M50/105

    CPC classification number: H01M10/0587 ,  H01M10/0525 ,  H01M50/105

    Abstract: A battery includes an electrode assembly and a housing. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator. The housing includes a curved surface and a plurality of side walls, the housing further includes a concave part accommodating the electrode assembly, the plurality of side walls enclose to form the concave part, and any three adjacent side walls are connected through the curved surface to form a junction. The three adjacent side walls include a first side wall formed by a main plane parallel to the first direction, a second side wall disposed parallel to the first direction and at an angle to the first side wall, and a third side wall disposed at an angle to the first direction.

    ANODE, AND ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE COMPRISING SAME
    4.
    发明申请
    ANODE, AND ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE COMPRISING SAME 审中-公开

    公开(公告)号：US20200313174A1

    公开(公告)日：2020-10-01

    申请号：US16676668

    申请日：2019-11-07

    Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

    Inventor： Bin WANG ,  Qian WEN ,  Yibo ZHANG ,  Qiaoshu HU

    IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/60 ,  H01M4/587 ,  H01M4/38

    Abstract: The present application relates to an anode, and an electrochemical device and an electronic device comprising the same. Embodiments of the present application provided an anode comprising: a current collector, a first anode structure layer and a second anode structure layer. The first anode structure layer comprises a first framework material and the second anode structure layer comprises a second framework material, wherein the first anode structure layer is disposed between the current collector and the second anode structure layer, and the first framework material has a higher oxidation-reduction potential for lithium ion or electronic conductivity than the second framework material. When the anode with double-layer structure provided by the present application is charged, the space utilization ratio of the anode can be enhanced, the rate capability of the electrochemical device can be enhanced, the formation of lithium dendrites may be inhibited, and the volume change amount of the anode can be reduced, thereby enhancing the safety performance and cycle performance of the electrochemical device.

    ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS
    6.
    发明公开
    ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS 审中-公开

    公开(公告)号：US20230246272A1

    公开(公告)日：2023-08-03

    申请号：US18179575

    申请日：2023-03-07

    Applicant: Ningde Amperex Technology Limited

    Inventor： Nan ZHANG ,  Yibo ZHANG ,  Kun YAN ,  Qiaoshu HU

    IPC: H01M50/186 ,  H01M50/54 ,  H01M50/119 ,  H01M50/121

    CPC classification number: H01M50/186 ,  H01M50/54 ,  H01M50/119 ,  H01M50/121

    Abstract: An electrochemical apparatus, including two electrode assemblies and a packaging shell, where the two electrode assemblies are respectively disposed in independent cavities in the packaging shell; each electrode assembly includes two tabs with opposite polarities, where at least one tab of one electrode assembly is connected to one of two tabs of the other electrode assembly, and orthographic projections of the two connected tabs along a seal thickness direction Z overlap to form a tab overlapping region; and a ratio α of an overlapping width of the two connected tabs along a seal length direction X at an outer edge of a seal of the packaging shell viewed along the seal thickness direction Z to a width of either of the two connected tabs satisfies 40%

    ELECTRODE SHEET AND BATTERY CELL
    7.
    发明申请
    ELECTRODE SHEET AND BATTERY CELL 审中-公开

    公开(公告)号：US20200373546A1

    公开(公告)日：2020-11-26

    申请号：US16718852

    申请日：2019-12-18

    Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

    Inventor： Xiang LI ,  Huixin WANG ,  Qiaoshu HU ,  Yibo ZHANG

    IPC: H01M2/26 ,  H01M10/04

    Abstract: The embodiments of the present application relate to an electrode sheet and a battery cell including the same. The electrode sheet according to an embodiment comprises an electrode sheet body and a plurality of tabs connected to the electrode sheet body. The width of each of the plurality of tabs is different from one another; or the length of each of the plurality of tabs is different from one another. The electrode sheet and the battery cell provided in the embodiments of the present application ensure that each of the tabs in the electrode sheet can electrically conduct well with the tab lead. Thus, the battery cell provided in the present application has the advantage of good electrical conductivity.

    COMPOSITE CURRENT COLLECTOR AND COMPOSITE ELECTRODE AND ELECTROCHEMICAL DEVICE INCLUDING THE SAME
    8.
    发明申请
    COMPOSITE CURRENT COLLECTOR AND COMPOSITE ELECTRODE AND ELECTROCHEMICAL DEVICE INCLUDING THE SAME 审中-公开

    公开(公告)号：US20200313198A1

    公开(公告)日：2020-10-01

    申请号：US16798996

    申请日：2020-02-24

    Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

    Inventor： Yibo ZHANG ,  Bin WANG ,  Xiang LI ,  Qiaoshu HU

    IPC: H01M4/66 ,  H01M4/134 ,  H01M4/52 ,  H01M4/36 ,  H01M10/0525 ,  H01M10/0565

    Abstract: A composite current collector includes: an intermediate layer, having a first surface and a second surface opposite to the first surface, and the intermediate layer being an electronically insulated ionic conductor; a first metal layer, disposed on the first surface; and a second metal layer, disposed on the second surface, wherein the first metal layer and the second metal layer separately include at least one hole, the hole exposing a part of the first surface and a part of the second surface. Since the intermediate layer is an ionic conductor, the part exposed from the hole can effectively form ion path connecting active materials on both sides of the composite current collector, thereby improving ion conductivity. In addition, the composite electrode helps to ensure the capacity performance of the cathode and anode active materials, thereby further improving the energy density of the composite electrode.

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