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    Electrochemical device and electronic device comprising same
    3.
    发明授权
    Electrochemical device and electronic device comprising same 有权

    公开(公告)号：US11616223B2

    公开(公告)日：2023-03-28

    申请号：US16298089

    申请日：2019-03-11

    Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

    Inventor： Chaowang Lin

    IPC: H01M10/0525 ,  H01M4/131 ,  H01M4/525 ,  H01M4/133 ,  H01M4/134

    Abstract: The present application relates to an electrochemical device and an electronic device including the same. The electrochemical device includes a cathode, a separator and an anode, wherein the cathode includes a cathode current collector; a first cathode active material layer including a first cathode active material; a second cathode active material layer including a second cathode active material, wherein the first cathode active material layer is disposed between the cathode current collector and the second cathode active material layer, and the first cathode active material layer is disposed on a first surface, facing the anode, of the cathode current collector; and an insulating layer, wherein the insulating layer is disposed on a second surface, that is not facing the anode, of the cathode current collector. According to the present application, arranging the cathode by combining the double cathode active material layers with an insulating layer in the electrochemical device, the electrochemical device will not catch on fire or fail when being pierced, so that the mechanical safety performance of the electrochemical device is ensured.

    Electrode and lithium-ion battery
    4.
    发明授权
    Electrode and lithium-ion battery 有权

    公开(公告)号：US10693181B2

    公开(公告)日：2020-06-23

    申请号：US16000597

    申请日：2018-06-05

    Applicant: Ningde Amperex Technology Limited

    Inventor： Chaowang Lin ,  Fan Yang ,  Yisong Su ,  Huawei Zhong ,  Changming Qu ,  Xiaozhen Zhang

    IPC: H01M4/02 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/38 ,  H01M4/50 ,  H01M4/52 ,  H01M4/583 ,  H01M4/62 ,  H01M4/66

    Abstract: The present application provides an electrode and a lithium-ion battery. The electrode comprises: a current collector; a first active material layer comprising a first active material; and a second active material layer comprising a second active material; wherein the first active material layer is arranged between the current collector and the second active material layer. The first active material layer is formed on at least one surface of the current collector, and a ratio of an average particle size of the second active material to an average particle size of the first active material is from 1:1 to 40:1. The active material layer is used in the present application to ensure that the lithium-ion battery does not generate a short circuit when pressed by an external force, thereby ensuring the mechanical safety performance of the lithium-ion battery.

    ELECTRODE AND ELECTROCHEMICAL DEVICE
    5.
    发明申请
    ELECTRODE AND ELECTROCHEMICAL DEVICE 审中-公开

    公开(公告)号：US20200075943A1

    公开(公告)日：2020-03-05

    申请号：US16174329

    申请日：2018-10-30

    Applicant: Ningde Amperex Technology Limited

    Inventor： Wei Cui ,  Chaowang Lin ,  Changchuan Shi ,  Yisong Su

    IPC: H01M4/48 ,  H01M10/0525

    Abstract: The present application provides an electrode and an electrochemical device comprising the electrode. The electrode comprises a current collector; and an inorganic layer arranged on a surface of the current collector, wherein the inorganic layer comprises a metal oxide and does not comprise a polymer. The electrode of the lithium ion battery provided by the present application has little influence on the volume energy density of the lithium ion battery while improving the safety performance of the lithium ion battery.

    ELECTRODE AND LITHIUM-ION BATTERY
    6.
    发明申请
    ELECTRODE AND LITHIUM-ION BATTERY 审中-公开

    公开(公告)号：US20190267664A1

    公开(公告)日：2019-08-29

    申请号：US16000597

    申请日：2018-06-05

    Applicant: Ningde Amperex Technology Limited

    Inventor： Chaowang Lin ,  Fan Yang ,  Yisong Su ,  Huawei Zhong ,  Changming Qu ,  Xiaozhen Zhang

    IPC: H01M10/0525 ,  H01M4/583 ,  H01M4/62 ,  H01M4/38 ,  H01M4/66 ,  H01M4/52 ,  H01M4/50 ,  H01M4/36

    Abstract: The present application provides an electrode and a lithium-ion battery. The electrode comprises: a current collector; a first active material layer comprising a first active material; and a second active material layer comprising a second active material; wherein the first active material layer is arranged between the current collector and the second active material layer. The first active material layer is formed on at least one surface of the current collector, and a ratio of an average particle size of the second active material to an average particle size of the first active material is from 1:1 to 40:1. The active material layer is used in the present application to ensure that the lithium-ion battery does not generate a short circuit when pressed by an external force, thereby ensuring the mechanical safety performance of the lithium-ion battery.

    Electrochemical device and electronic device including same
    8.
    发明授权
    Electrochemical device and electronic device including same 有权

    公开(公告)号：US11923530B2

    公开(公告)日：2024-03-05

    申请号：US18170578

    申请日：2023-02-17

    Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

    Inventor： Chaowang Lin

    IPC: H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/525 ,  H01M10/0525

    CPC classification number: H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/525 ,  H01M10/0525

    Abstract: An electrochemical device includes a cathode, a separator and an anode. The cathode includes a cathode current collector, a first cathode active material layer including a first cathode active material, a second cathode active material layer including a second cathode active material, and an insulating layer. The first cathode active material layer is disposed between the cathode current collector and the second cathode active material layer, and the first cathode active material layer is disposed on a first region of a surface of the cathode current collector facing an anode active material layer of the anode, and the thickness of the first cathode active material layer is greater than Dv50 of the first cathode active material. The insulating layer is disposed on a second region of the surface of the cathode current collector not facing the anode active material layer of the anode.

    Electrode electrochemical device and electronic device
    9.
    发明授权
    Electrode electrochemical device and electronic device 有权

    公开(公告)号：US11322774B2

    公开(公告)日：2022-05-03

    申请号：US16868966

    申请日：2020-05-07

    Applicant: Ningde Amperex Technology Limited

    Inventor： Chaowang Lin ,  Fan Yang ,  YiSong Su ,  Huawei Zhong ,  Changming Qu ,  Xiaozhen Zhang

    IPC: H01M4/02 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/38 ,  H01M4/50 ,  H01M4/52 ,  H01M4/583 ,  H01M4/62 ,  H01M4/66

    Abstract: The present application provides an electrode, an electrochemical device, and an electronic device. The electrode includes: a current collector; a first active material layer including a first active material; and a second active material layer including a second active material; wherein the first active material layer is arranged between the current collector and the second active material layer. The first active material layer is formed on a surface of the current collector, and a particle size of 90% accumulative volume of the first active material is less than 40 μm. The active material layer is used in the present application to ensure that the electrochemical device and the electronic device do not generate a short circuit when pressed by an external force, thereby ensuring the mechanical safety performance of the electrochemical device and the electronic device.

    Cathode, electrochemical device and electronic device including the same
    10.
    发明授权
    Cathode, electrochemical device and electronic device including the same 有权

    公开(公告)号：US12255311B2

    公开(公告)日：2025-03-18

    申请号：US17476896

    申请日：2021-09-16

    Applicant: Ningde Amperex Technology Limited

    Inventor： Huawei Zhong ,  Chaowang Lin ,  Fan Yang ,  Yisong Su

    IPC: H01M4/139 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

    Abstract: An electrochemical device includes a cathode including a cathode current collector, a first cathode active material layer including a first cathode active material, and a second cathode active material layer including a second cathode active material. The first cathode active material layer is disposed between the cathode current collector and the second cathode active material layer, and the first cathode active material layer is formed on at least one surface of the cathode current collector. The first cathode active material layer is firstly formed on the cathode current collector, and the second cathode active material layer is secondly formed on the first cathode active material layer, then the second cathode active material layer and the first cathode active material layer are pressed together.

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