METHOD FOR MANUFACTURING CORROSION-PREVENTING LAYER, AND CYLINDRICAL SECONDARY BATTERY

    公开(公告)号:US20240313371A1

    公开(公告)日:2024-09-19

    申请号:US18267027

    申请日:2022-03-03

    摘要: A manufacturing method for providing a corrosion prevention layer on a cylindrical secondary battery including a jelly-roll type electrode assembly having a structure in which a first electrode, a second electrode, and a separator interposed therebetween are wound in one direction based on a winding axis, a battery can accommodating the electrode assembly and the battery can including a metal plated layer, and a connection lead plate joining the battery can and the electrode assembly, of which the method includes applying a resin to a portion where the metal plated layer is welded to the connection lead plate, and forming the corrosion prevention layer by curing the resin by ultraviolet rays. The resin includes one or more liquid materials. The one or more liquid materials are ultraviolet curable. The one or more liquid materials have a viscosity of 1 cP to 5000 cP.

    BATTERY UNIT, BATTERY MODULE, AND VEHICLE
    4.
    发明公开

    公开(公告)号:US20240266696A1

    公开(公告)日:2024-08-08

    申请号:US18639314

    申请日:2024-04-18

    摘要: A battery unit, a battery module, and a vehicle are provided. The battery unit includes a housing, an electrode core, a first electrode terminal, and a second electrode terminal. A chamber is defined in the housing. The electrode core is arranged in the chamber, the electrode core includes a first electrode tab and a second electrode tab, one of the first electrode tab and the second electrode tab is a positive electrode tab, the other one of the first electrode tab and the second electrode tab is a negative electrode tab, and the positive electrode tab is physically and electrically connected to the housing. The first electrode terminal is electrically connected to the first electrode tab. The second electrode terminal is electrically connected to the second electrode tab.

    BATTERY
    9.
    发明公开
    BATTERY 审中-公开

    公开(公告)号:US20230231291A1

    公开(公告)日:2023-07-20

    申请号:US18154992

    申请日:2023-01-16

    摘要: The present invention provides a battery, comprising a case, a cell packaged in the case, an electrical terminal located at one end of the case and electrically connected to the cell, a safety device and a current cut-off device. The safety device comprises a first and second electrode respectively electrically connected to a positive electrode or a negative electrode. The first electrode and the second electrode are arranged spaced apart from each other and form an electric field, and a gas generating material capable of generating an inert gas when a voltage reaches or exceeds a threshold value is provided in the electric field. The current cut-off device is electrically connected between the cell and the electrical terminal and is capable of causing a brake of circuit in response to a pressure difference between the inside and the outside of the battery caused by the inert gas.