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    PARTITION FOR ELECTROCHEMICAL APPARATUS, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC APPARATUS
    2.
    发明申请
    PARTITION FOR ELECTROCHEMICAL APPARATUS, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC APPARATUS 有权

    公开(公告)号：US20220223899A1

    公开(公告)日：2022-07-14

    申请号：US17708512

    申请日：2022-03-30

    Applicant: Ningde Amperex Technology Limited

    Inventor： Yibo ZHANG

    IPC: H01M10/04 ,  H01M50/231

    Abstract: A partition for an electrochemical apparatus, the electrochemical apparatus, and an electronic apparatus are provided, and the partition for the electrochemical apparatus is of ionic insulation and has an intermediate layer and packaging layers, where the packaging layers are located on upper and lower surfaces of the intermediate layer; and a temperature at which the packaging layers start to soften is at least 10° C. lower than a temperature at which the intermediate layer starts to soften. Through the partition that is obtained through lamination of at least three layers of composite films, ionic insulation and packaging reliability can be ensured.

    ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS
    4.
    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 ASSEMBLY, AND ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS INCLUDING SUCH ELECTRODE ASSEMBLY
    5.
    发明申请
    ELECTRODE ASSEMBLY, AND ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS INCLUDING SUCH ELECTRODE ASSEMBLY 有权

    公开(公告)号：US20230024456A1

    公开(公告)日：2023-01-26

    申请号：US17953656

    申请日：2022-09-27

    Applicant: Ningde Amperex Technology Limited

    Inventor： Ying SHAO ,  Yibo ZHANG

    IPC: H01M50/474 ,  H01M50/486 ,  H01M50/483 ,  H01M50/491 ,  H01M50/536

    Abstract: An electrode assembly includes an electrode plate and an embedded tab provided on the electrode plate. A spinning layer is provided on a surface of the electrode plate, the spinning layer covers the surface of the electrode plate and is in contact with the surface of the electrode plate, and the surface of the electrode plate includes a surface of the tab. The spinning layer replaces a conventional separator, and the spinning layer and the electrode plate are integrated as a whole. Especially in a battery structure with the embedded tabs, because the spinning layer is able to isolate metal burrs. The spinning layer replaces the green glue originally affixed on the tab region, thereby eliminating the glue affixed on the tab region.

    ELECTRODE SHEET AND BATTERY CELL
    6.
    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
    7.
    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.

    ANODE, AND ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE COMPRISING SAME
    9.
    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.

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