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    BIDIRECTIONAL PRESSURE RELIEF VALVE, BATTERY AND ELECTRIC DEVICE
    1.
    发明申请
    BIDIRECTIONAL PRESSURE RELIEF VALVE, BATTERY AND ELECTRIC DEVICE 有权

    公开(公告)号：US20220333706A1

    公开(公告)日：2022-10-20

    申请号：US17854687

    申请日：2022-06-30

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Fan ZHANG ,  Lei CHEN ,  Heyuan LI ,  Langchao HU

    IPC: F16K17/196 ,  H01M50/325 ,  H01M50/204

    Abstract: Provided in the embodiments of the application are a bidirectional pressure relief valve, a battery and an electric device. The bidirectional pressure relief valve includes a valve seat, a first valve element and a second valve element, where the valve seat has a first end and a second end opposite each other, a channel and a partition plate, the channel penetrating the first end and the second end, a first pressure relief hole being provided on the partition plate, and the partition plate being arranged on an inner wall of the channel, and dividing the channel into a first cavity and a second cavity in an axial direction of the channel. The bidirectional pressure relief valve of the application can be applied to the battery to maintain balance between internal pressure and external pressure of the battery.

    VALVE, BATTERY AND POWER CONSUMPTION DEVICE
    2.
    发明申请
    VALVE, BATTERY AND POWER CONSUMPTION DEVICE 有权

    公开(公告)号：US20220090692A1

    公开(公告)日：2022-03-24

    申请号：US17540296

    申请日：2021-12-02

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Fan ZHANG ,  Lei CHEN ,  Heyuan LI ,  Langchao HU

    IPC: F16K17/196 ,  H01M50/325

    Abstract: A valve, a battery and a power consumption device are disclosed, the valve includes a valve body, a barrier, a first unidirectional valve core and a second unidirectional valve core. The valve body includes a fluid channel; the barrier is disposed in the fluid channel, and separates the fluid channel into a first cavity and a second cavity, the barrier is provided with a first through hole and a second through hole communicating the first cavity and the second cavity; the first unidirectional valve core is configured to close or open the first through hole; the second unidirectional valve core is configured to close or open the second through hole, opening directions of the first unidirectional valve core and the second unidirectional valve core are opposite. The valve is compact and capable of implementing a bi-directional flow of fluid.

    SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, DEVICE, AND MANUFACTURING METHOD
    4.
    发明申请
    SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, DEVICE, AND MANUFACTURING METHOD 有权

    公开(公告)号：US20220352579A1

    公开(公告)日：2022-11-03

    申请号：US17056049

    申请日：2020-07-30

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Lei CHEN

    IPC: H01M50/148 ,  H01M50/169 ,  H01M50/186 ,  H01M10/04

    Abstract: The embodiments of the present disclosure provide a secondary battery, a battery module, a battery pack, a device, and a manufacturing method. The secondary battery includes: an electrode unit, including a main body portion and a first tab and a second tab extending out from the main body portion; a casing, including an accommodating cavity for accommodating the main body portion and a first opening which is in communication with the accommodating cavity; a first cover plate capping the first opening, the first cover plate including a first relief hole penetrating therethrough, the first tab passes through the first relief hole and is connected to a side of the first cover plate facing away from the accommodating cavity; and a sealing plate, which is sealingly connected to the side of the first cover plate facing away from the accommodating cavity and covers the first relief hole.

    SECONDARY BATTERY
    5.
    发明申请
    SECONDARY BATTERY 有权

    公开(公告)号：US20220115751A1

    公开(公告)日：2022-04-14

    申请号：US17557172

    申请日：2021-12-21

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Xichen WEI ,  Baojian ZHU ,  Shoujiang XU ,  Lei CHEN

    IPC: H01M50/533 ,  H01M50/103 ,  H01M50/147 ,  H01M50/553 ,  H01M10/04

    Abstract: A secondary battery. The secondary battery includes an electrode assembly, a housing, a top cover assembly, a current collecting member, and an insulation member. The electrode assembly is accommodated in the housing and includes a body portion and a first tab. The first tab extends from one end of the body portion in a transverse direction. The top cover assembly includes a top cover plate and a first electrode terminal disposed on the top cover plate. The top cover plate is connected to the housing, and the first electrode terminal is connected to the current collecting member. The insulation member is disposed between the body portion and the current collecting member. The insulation member includes a through gap. The first tab passes.

    SECONDARY BATTERY
    6.
    发明申请
    SECONDARY BATTERY 有权

    公开(公告)号：US20210320388A1

    公开(公告)日：2021-10-14

    申请号：US17354875

    申请日：2021-06-22

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Lei CHEN ,  Shoujiang XU

    IPC: H01M50/572

    Abstract: The present invention provides a secondary battery, including an electrode assembly, a housing, a top cover assembly, and an insulating member. The electrode assembly includes two first surfaces and two second surfaces, and the two first surfaces are located respectively at two ends of the electrode assembly in the thickness direction. The second surfaces are extended from the ends of the first surfaces along a width direction, and intersecting lines are formed between the first surfaces and the second surfaces. The housing has an opening and forms an accommodating cavity. The electrode assembly is located inside the accommodating cavity of the housing, and the top cover assembly is connected to the opening of the housing and seals the housing. The insulating member includes two first insulating sheets, and the two first insulating sheets are disposed respectively at two sides of the electrode assembly along the thickness direction.

    SECONDARY BATTERY, APPARATUS AND MANUFACTURING METHOD FOR SECONDARY BATTERY
    8.
    发明申请
    SECONDARY BATTERY, APPARATUS AND MANUFACTURING METHOD FOR SECONDARY BATTERY 有权

    公开(公告)号：US20210135321A1

    公开(公告)日：2021-05-06

    申请号：US17138519

    申请日：2020-12-30

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Lei CHEN

    IPC: H01M50/536 ,  H01M10/04

    Abstract: The present application provides a secondary battery, an apparatus and a manufacturing method for a secondary battery. The electrode assembly is housed in the packaging bag, and the electrode assembly includes a main body portion and a first electrode tab extending from the main body portion. The first electrode tab is set in multiple layers, and the multiple layers of the first electrode tab are connected by ultrasonic welding to form a first welding region. The electrode lead is connected to the electrode assembly and extends to an outside of the packaging bag, and the electrode lead is connected to the multiple layers of the first electrode tab by laser welding to form a second welding region. In a plane perpendicular to a thickness direction of the electrode lead, a projection of the second welding region is located in a projection of the first welding region.

    BIDIRECTIONAL PRESSURE RELIEF VALVE, BATTERY AND ELECTRIC DEVICE
    9.
    发明公开
    BIDIRECTIONAL PRESSURE RELIEF VALVE, BATTERY AND ELECTRIC DEVICE 审中-公开

    公开(公告)号：US20230250885A1

    公开(公告)日：2023-08-10

    申请号：US18134978

    申请日：2023-04-14

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Fan ZHANG ,  Lei CHEN ,  Heyuan LI ,  Langchao HU

    IPC: F16K17/196 ,  H01M50/204 ,  H01M50/325

    CPC classification number: F16K17/196 ,  H01M50/204 ,  H01M50/325 ,  H01M2200/20

    Abstract: Provided in the embodiments of the application are a bidirectional pressure relief valve, a battery and an electric device. The bidirectional pressure relief valve includes a valve seat, a first valve element and a second valve element, where the valve seat has a first end and a second end opposite each other, a channel and a partition plate, the channel penetrating the first end and the second end, a first pressure relief hole being provided on the partition plate, and the partition plate being arranged on an inner wall of the channel, and dividing the channel into a first cavity and a second cavity in an axial direction of the channel. The bidirectional pressure relief valve of the application can be applied to the battery to maintain balance between internal pressure and external pressure of the battery.

    SECONDARY BATTERY
    10.
    发明申请
    SECONDARY BATTERY 有权

    公开(公告)号：US20230131176A1

    公开(公告)日：2023-04-27

    申请号：US17043149

    申请日：2020-04-11

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Mianyu XIE ,  Min ZHANG ,  Lei CHEN ,  Xiao CHEN

    IPC: H01M10/0525 ,  H01M50/178 ,  H01M50/184

    Abstract: Provided is a secondary battery, including: an electrode assembly, a packing bag, an electrode lead and an insulation part; the electrode assembly is housed in the packing bag having a sealing part on edge, and the electrode lead is connected to the electrode assembly and passes through the sealing part. The sealing part includes a main body area, a first step area and a first transition area which are located on same side of the electrode lead along width direction, and the main body area, first transition area and first step area are successively arranged along direction approaching the electrode lead; the insulation part is wrapped around the electrode lead, and has a first portion which is located on a side of the electrode lead close to the main body area along width direction and covered by the first step area on both sides in thickness direction.

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