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    Secondary battery
    12.
    发明授权
    Secondary battery 有权

    公开(公告)号：US10714721B2

    公开(公告)日：2020-07-14

    申请号：US15594684

    申请日：2017-05-15

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Quankun Li ,  Pinghua Deng ,  Peng Wang ,  Kai Wu ,  Yongshou Lin

    IPC: H01M2/12 ,  H01M10/04 ,  H01M2/14 ,  H01M2/36 ,  H01M2/18 ,  H01M2/02

    Abstract: The present invention provides a secondary battery including: a housing, the housing being provided with an explosion proof valve at a bottom thereof, a cell pallet received in the housing and located at a bottom of the housing, the cell pallet being provided with a first through-hole and at least one groove, the first through-hole being aligned with the explosion proof valve and extending through the cell pallet to communicate a space above the cell pallet and a space below the cell pallet, the at least one groove being provided on an upper surface and/or a lower surface of the cell pallet, and the first through-hole communicating with at least one side edge of the cell pallet through the at least one groove; a bare cell received in the housing and seated on the cell pallet; and a top cover assembled to a top side of the housing.

    Secondary Battery
    13.
    发明申请
    Secondary Battery 审中-公开

    公开(公告)号：US20170331090A1

    公开(公告)日：2017-11-16

    申请号：US15594684

    申请日：2017-05-15

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Quankun Li ,  Pinghua Deng ,  Peng Wang ,  Kai Wu ,  Yongshou Lin

    IPC: H01M2/12 ,  H01M10/04

    Abstract: The present invention provides a secondary battery including: a housing, the housing being provided with an explosion proof valve at a bottom thereof; a cell pallet received in the housing and located at a bottom of the housing, the cell pallet being provided with a first through-hole and at least one grooves, the first through-hole being aligned with the explosion proof valve and extending through the cell pallet to communicate a space above the cell pallet and a space below the cell pallet, the at least one grooves being provided on an upper surface and/or a lower surface of the cell pallet, and the first through-hole communicating with at least one side edge of the cell pallet through the at least one grooves; a bare cell received in the housing and seated on the cell pallet; and a top cover assembled to a top side of the housing.

    ELECTRODE SHEET FOR LI-ION BATTERY AND LI-ION BATTERY INCLUDING THE SAME
    14.
    发明申请
    ELECTRODE SHEET FOR LI-ION BATTERY AND LI-ION BATTERY INCLUDING THE SAME 审中-公开

    公开(公告)号：US20170214036A1

    公开(公告)日：2017-07-27

    申请号：US15409384

    申请日：2017-01-18

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Jiandong Yang ,  Wei Li ,  Haizu Jin ,  Yu Luo ,  Yongshou Lin ,  Kai Wu

    IPC: H01M4/13 ,  H01M4/66 ,  H01M2/18 ,  H01M10/0525

    CPC classification number: H01M4/13 ,  H01M2/18 ,  H01M4/661 ,  H01M4/70 ,  H01M10/0525 ,  Y02T10/7011

    Abstract: The present application relates to an electrode sheet for Li-ion battery and a Li-ion battery including the same. The Li-ion battery includes a current collector and a diaphragm layer coated on the current collector, the current collector includes a coating region and at least one electrode tab region, the coating region is a region of the current collector coated with the diaphragm layer; the coating region is adjoined with the electrode tab region, a stress releasing region is provided at adjoining position of the coating region and at least one electrode tab region. The stress releasing region provided by the present application can reduce stress received by the diaphragm during rolling and stretching processes, which can avoid cracking of electrode tab and electrode sheet, and can improve battery cycling performance and, at the same time, can also be fused in short circuit, thereby improving safety performance of the battery.

    Current collecting member, secondary battery and fabrication method
    15.
    发明授权
    Current collecting member, secondary battery and fabrication method 有权

    公开(公告)号：US11949128B2

    公开(公告)日：2024-04-02

    申请号：US17317854

    申请日：2021-05-11

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Hu Xu ,  Miaomiao Ren ,  Yuanbao Chen ,  Long Xu ,  Donglai Zheng ,  Lingbo Zhu ,  Yongshou Lin

    IPC: H01M50/54 ,  H01M50/50 ,  H01M50/564

    CPC classification number: H01M50/54 ,  H01M50/50 ,  H01M50/564

    Abstract: This application provides a current collecting member, a secondary battery, and a fabrication method. The secondary battery includes an electrode assembly, a housing, a top cover assembly and current collecting members. The electrode assembly includes a main body portion and a first tab extending from an end of the main body portion along a transverse direction. The top cover assembly includes a top cover plate and a first electrode terminal disposed on the top cover plate connected to the housing. The current collecting member is connected to the first tab and the first electrode terminal. The current collecting member includes a substrate and a support plate, the substrate being provided at a side of the main body portion along a transverse direction, the support plate extending from an end part of the substrate in a longitudinal direction, and the first tab being connected to the support plate.

    Battery, power consumption device, method and device for preparing a battery
    17.
    发明授权
    Battery, power consumption device, method and device for preparing a battery 有权

    公开(公告)号：US11588205B2

    公开(公告)日：2023-02-21

    申请号：US17113034

    申请日：2020-12-05

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Kai Wu ,  Wei Wang ,  Yuepan Hou ,  Peng Wang ,  Xiaobo Chen ,  Yao Li ,  Yongshou Lin

    IPC: H01M50/342 ,  H01M10/6554 ,  H01M10/6567 ,  H01M50/20

    Abstract: Embodiments of the present application provide a battery, a power consumption device, a method and device for preparing a battery. The battery includes: a battery cell including a pressure relief mechanism, the pressure relief mechanism being disposed at a first wall of the battery cell; and a thermal management component configured to accommodate a fluid to adjust a temperature of the battery cell; where a first surface of the thermal management component is attached to the first wall of the battery cell, the thermal management component is configured to be capable of being damaged by emissions discharged from the battery cell when the pressure relief mechanism is actuated, such that the emissions pass through the thermal management component. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

    Battery
    18.
    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.

    CURRENT COLLECTING MEMBER, SECONDARY BATTERY AND FABRICATION METHOD
    20.
    发明申请
    CURRENT COLLECTING MEMBER, SECONDARY BATTERY AND FABRICATION METHOD 有权

    公开(公告)号：US20210265709A1

    公开(公告)日：2021-08-26

    申请号：US17317854

    申请日：2021-05-11

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Hu XU ,  Miaomiao Ren ,  Yuanbao Chen ,  Long Xu ,  Donglai Zheng ,  Lingbo Zhu ,  Yongshou Lin

    IPC: H01M50/54 ,  H01M50/564

    Abstract: This application provides a current collecting member, a secondary battery, and a fabrication method. The secondary battery includes an electrode assembly, a housing, a top cover assembly and current collecting members. The electrode assembly includes a main body portion and a first tab extending from an end of the main body portion along a transverse direction. The top cover assembly includes a top cover plate and a first electrode terminal disposed on the top cover plate connected to the housing. The current collecting member is connected to the first tab and the first electrode terminal. The current collecting member includes a substrate and a support plate, the substrate being provided at a side of the main body portion along a transverse direction, the support plate extending from an end part of the substrate in a longitudinal direction, and the first tab being connected to the support plate.

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