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    Positive electrode and li-ion battery including the same
    31.
    发明授权
    Positive electrode and li-ion battery including the same 有权

    公开(公告)号：US10541410B2

    公开(公告)日：2020-01-21

    申请号：US15273474

    申请日：2016-09-22

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Zhenhua Li ,  Zhenxing Pei ,  Wuyuan Zou

    IPC: H01M4/131 ,  H01M4/36 ,  H01M4/136 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/42 ,  H01M4/02

    Abstract: The present application relates to a positive electrode and a Li-ion battery including the positive electrode, the positive electrode comprises a positive electrode current collector and a first active material layer including a first positive electrode active material arranged on the positive electrode current collector, a buffer layer including a carbon material and a binder, and a second active material layer including a second positive electrode active material, the buffer layer is arranged between the first active material layer and the second active material layer. The positive electrode provided by the present application, when applied to the lithium battery, not only can improve the safety performance of the Li-ion battery, but also improve the cycle performance of the Li-ion battery.

    BATTERY AND POWER CONSUMING DEVICE
    34.
    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 CELL, BATTERY, AND ELECTRIC APPARATUS
    35.
    发明申请
    BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS 有权

    公开(公告)号：US20220416375A1

    公开(公告)日：2022-12-29

    申请号：US17894015

    申请日：2022-08-23

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO.,LIMITED

    Inventor： Haizu JIN ,  Xinzhan Wu ,  Zhenhua Li ,  Kaijie You ,  Wenei Chen

    IPC: H01M50/54

    Abstract: This application provides a battery cell, a battery, and an electric apparatus. The battery cell includes: an electrode assembly, including a body portion and a first tab. A first size L1 of the body portion in a length direction thereof is greater than a second size L2 of the body portion in a width direction thereof. The first tab is located on at least one end of the body portion in the width direction. The first tab has a third size L3 in the length direction. The first size L1, the second size L2, and the third size L3 satisfy 0.5L2≤L3≤L1. The battery cell according to an embodiment of this application is intended to resolve a technical problem of severe heat generation by a tab.

    Secondary battery, battery module and vehicle
    36.
    发明授权
    Secondary battery, battery module and vehicle 有权

    公开(公告)号：US11476526B2

    公开(公告)日：2022-10-18

    申请号：US16890457

    申请日：2020-06-02

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

    IPC: H01M50/147 ,  H01M10/04 ,  H01M50/531 ,  H01M50/543

    Abstract: The present disclosure provides a secondary battery, a battery module and a vehicle. The secondary battery includes an electrode assembly, a case and a cap assembly. The case has an accommodating cavity, and the electrode assembly is accommodated in the accommodating cavity. The electrode assembly includes electrode units, and the electrode units are stacked in an axial direction of the accommodating cavity. The cap assembly includes a cap plate and an insulating member provided at an inner side of the cap plate, the cap plate is connected with the case, and the insulating member is positioned at a side of the electrode assembly in the axial direction. The insulating member is provided with a first surface at a side close to the electrode assembly, and the first surface is a flat surface.

    Battery
    37.
    发明授权
    Battery 有权

    公开(公告)号：US11362364B2

    公开(公告)日：2022-06-14

    申请号：US16433662

    申请日：2019-06-06

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Haizu Jin ,  Xiaowen Zhang ,  Zhenhua Li

    IPC: H01M10/04 ,  H01M4/525 ,  H01M10/0565

    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.

    Lithium-ion battery with layered positive active material
    38.
    发明授权
    Lithium-ion battery with layered positive active material 有权

    公开(公告)号：US11329280B2

    公开(公告)日：2022-05-10

    申请号：US16422866

    申请日：2019-05-24

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Xiaowen Zhang ,  Zhenhua Li ,  Haizu Jin

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

    Abstract: This application relates to a battery comprising a positive electrode plate, a separator, a negative electrode plate and an electrolyte, 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 the 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 the first polymer material comprises fluorinated polyolefin and/or chlorinated polyolefin polymer material. The battery has good safety and improved electrical properties, and the viscosity at normal temperature of the electrolyte is ≤4 cp.

    Battery
    39.
    发明授权
    Battery 有权

    公开(公告)号：US11329269B2

    公开(公告)日：2022-05-10

    申请号：US16424036

    申请日：2019-05-28

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Yuqun Zeng ,  Yongshou Lin ,  Zhenhua Li ,  Haizu Jin ,  Xiaowen Zhang

    IPC: H01M4/13 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/052 ,  H01M10/058 ,  H01M10/42 ,  H01M50/409 ,  H01M50/545 ,  H01M50/572

    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.

    Battery
    40.
    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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