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    Battery module and battery pack
    4.
    发明授权
    Battery module and battery pack 有权

    公开(公告)号：US11177528B2

    公开(公告)日：2021-11-16

    申请号：US16691215

    申请日：2019-11-21

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Haizu Jin ,  Fei Hu ,  Zhenhua Li ,  Dongyang Shi ,  Rui Yang ,  Yuqun Zeng ,  Yongshou Lin

    IPC: H01M50/20 ,  H01M50/15 ,  H01M50/147 ,  H01M10/0525 ,  H01M10/0565

    Abstract: The present disclosure provides a battery module and a battery pack. The battery pack comprises a box and a battery module, the battery module is accommodated in the box. The battery module comprises batteries sequentially arranged in a first direction. The battery comprises an electrode assembly, a case and a cap assembly, the electrode assembly is received in the case, and the cap assembly is connected with the case. The case comprises two first side walls, and the two first side walls are respectively positioned at two sides of the electrode assembly in the first direction. The first side walls of two adjacent batteries face each other. An area of the first side wall is defined as S1, a distance between the electrode assemblies of two adjacent batteries in the first direction is defined as D, S1 and D satisfying a relationship: 1.2×10−5 mm−1≤D/S1≤500×10−5 mm−1.

    Battery module and battery pack
    5.
    发明授权
    Battery module and battery pack 有权

    公开(公告)号：US11139528B2

    公开(公告)日：2021-10-05

    申请号：US17137172

    申请日：2020-12-29

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Haizu Jin ,  Fei Hu ,  Zhenhua Li ,  Dongyang Shi ,  Rui Yang ,  Yuqun Zeng ,  Yongshou Lin

    IPC: H01M50/20 ,  H01M50/15 ,  H01M50/147 ,  H01M10/0525 ,  H01M10/0565

    Abstract: The present disclosure provides a battery module and a battery pack. The battery pack comprises a box and a battery module, the battery module is accommodated in the box. The battery module comprises batteries sequentially arranged in a first direction. The battery comprises an electrode assembly, a case and a cap assembly, the electrode assembly is received in the case, and the cap assembly is connected with the case. The case comprises two first side walls, and the two first side walls are respectively positioned at two sides of the electrode assembly in the first direction. The first side walls of two adjacent batteries face each other. An area of the first side wall is defined as S1, a distance between the electrode assemblies of two adjacent batteries in the first direction is defined as D, S1 and D satisfying a relationship: 1.2×10−5 mm−1≤D/S1≤500×10−5 mm−1.

    SECONDARY BATTERY AND BATTERY MODULE
    6.
    发明申请
    SECONDARY BATTERY AND BATTERY MODULE 审中-公开

    公开(公告)号：US20200235370A1

    公开(公告)日：2020-07-23

    申请号：US16455751

    申请日：2019-06-28

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Ning CHEN ,  Haizu Jin ,  Dongyang Shi ,  Zhenhua Li ,  Yuanbao Chen ,  Rui Yang ,  Fei Hu

    IPC: H01M2/26 ,  H01M2/10 ,  H01M2/04 ,  H01M10/0585

    Abstract: The disclosure relates to a secondary battery and a battery module. The secondary battery comprises a casing, which includes a receiving hole having an opening; a top cover assembly, which includes a top cover plate connected to the casing to close the opening; an electrode assembly disposed within the receiving hole, the electrode assembly has an dimension of 0.01 mm to 1000 mm in an axial direction of the receiving hole, the electrode assembly includes two end faces opposed to each other in a first direction perpendicular to the axial direction and tabs extending from the end faces, the electrode assembly includes two or more electrode units laminated in the axial direction, and in a second direction perpendicular to the axial direction and the first direction, the dimension of the tab is smaller than the dimension of the end face; and a current collecting member electrically connected to the tab.

    Positive electrode plate and electrochemical device
    9.
    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.

    Secondary battery and battery module
    10.
    发明授权
    Secondary battery and battery module 有权

    公开(公告)号：US11069942B2

    公开(公告)日：2021-07-20

    申请号：US16429914

    申请日：2019-06-03

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Dongyang Shi ,  Yuanbao Chen ,  Haizu Jin ,  Zhenhua Li ,  Ning Chen ,  Fei Hu ,  Tian Wu

    IPC: H01M2/30 ,  H01M50/529 ,  H01M50/147 ,  H01M50/531

    Abstract: The present invention relates to a secondary battery and a battery module. The secondary battery includes: a casing including a receiving cavity having an opening; a top cover assembly, and an electrode assembly disposed in the receiving cavity, wherein the electrode assembly includes two end faces disposed opposite to each other in a first direction perpendicular to a depth direction of the receiving cavity, a lug extending from each end face; the lug is a layered structure and has a redundant section near the end face and a connecting section connected to the redundant section; the current collecting member includes a current collecting portion fixedly connected to the connecting section. The lug of the secondary battery of the embodiment of the present invention has the redundant section, which can effectively buffer the movement and reduce the possibility that the lug is torn or broken due to an excessive tensile stress.

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