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    SEALING METHOD FOR LIQUID INLET PORT OF POWER STORAGE DEVICE
    1.
    发明申请
    SEALING METHOD FOR LIQUID INLET PORT OF POWER STORAGE DEVICE 有权

    公开(公告)号：US20220055143A1

    公开(公告)日：2022-02-24

    申请号：US17396293

    申请日：2021-08-06

    Applicant: NAG System Co., Ltd.

    Inventor： Hidemasa Nagamine ,  Keiji Wada ,  Takahiro Asada

    IPC: B23K11/11 ,  B23K11/25 ,  B23K11/00 ,  B23K11/26 ,  H01M50/184 ,  H01M50/636

    Abstract: A sealing method that uses an electrostatic energy storage welding machine which includes an energy storage section including a plurality of energy storage parts is provided. A method of sealing a liquid inlet port of a power storage device includes burring in advance a through-hole of the liquid sealing port to raise a hole edge of the through-hole into a form of a projection, wherein the liquid sealing port of the power storage device to be sealed with electrolyte contained therein corresponds to an object to be welded; placing a spherical body that is a lid body on the projection; and performing resistance welding between the projection and the spherical body to seal the liquid inlet port.

    Resistance-Welding Equipment
    2.
    发明申请
    Resistance-Welding Equipment 审中-公开

    公开(公告)号：US20190193190A1

    公开(公告)日：2019-06-27

    申请号：US16287457

    申请日：2019-02-27

    Applicant: NAG System Co., Ltd.

    Inventor： Keiji Wada ,  Takahiro Asada

    IPC: B23K11/30 ,  B23K11/11 ,  B23K11/31

    CPC classification number: B23K11/30 ,  B23K11/115 ,  B23K11/312

    Abstract: An equipment main bod includes an intermediate electrode set disposed between upper and lower welding electrodes and provided at at least one of the upper and lower welding electrode sides. The intermediate electrode set includes a plurality of intermediate units, each intermediate unit having an intermediate electrode set jig and an intermediate electrode attachable to and detachable from the intermediate electrode set jig, and is configured as a rotary type in which the plurality of intermediate units are provided so as to be rotatable in a circumferential direction such that the plurality of intermediate units sequentially stop at a welding position that is aligned with the upper and lower welding electrodes in an up-down direction. The intermediate electrode set is configured to resistance-weld the workpiece, while pressing the workpiece by the pressing unit, via the intermediate electrode of the intermediate unit at the welding position.

    METHOD FOR MANUFACTURING STACKED METAL FOIL, METHOD FOR MANUFACTURING SEALED CELL INCLUDING SAID METHOD, AND SEALED CELL
    5.
    发明申请
    METHOD FOR MANUFACTURING STACKED METAL FOIL, METHOD FOR MANUFACTURING SEALED CELL INCLUDING SAID METHOD, AND SEALED CELL 审中-公开
    用于制造堆积金属箔的方法，用于制造密封细胞的方法，包括所述方法和密封细胞

    公开(公告)号：US20150318535A1

    公开(公告)日：2015-11-05

    申请号：US14799746

    申请日：2015-07-15

    Applicant: NAG SYSTEM CO., LTD.

    Inventor： Hidemasa NAGAMINE ,  Keiji WADA

    IPC: H01M2/30 ,  B23K11/34 ,  B23K11/00 ,  B23K11/11 ,  H01M2/26 ,  H01M4/66

    CPC classification number: H01M2/26 ,  B23K11/0026 ,  B23K11/11 ,  B23K11/20 ,  B23K11/34 ,  B23K28/02 ,  B23K2103/10 ,  B23K2103/12 ,  H01M2/30 ,  H01M4/661 ,  H01M4/665 ,  H01M4/667

    Abstract: The method for manufacturing a laminated metal foil (1) according to the present invention includes: a first step of forming, in a weld site (A) of laminated layers of a metal foil (2), by the use of a cutter (C) whose longitudinal cross-sectional shape is a substantially V-shape, a notch (3) that is linear in a planar view and penetrates the laminated layers of the metal foil (2) in a lamination direction (S), to cause the laminated layers of the metal foil (2) to bond to each other along the lamination direction (S) at ends (3a) of a linear notch; and a second step of bringing an electrode (E) for resistance welding into press-contact with the weld site (A) and then energizing the weld site (A) via the electrode (E), to perform resistance welding on the laminated metal foil (1).

    Abstract translation: 根据本发明的层压金属箔（1）的制造方法包括：第一步骤，通过使用切割器（C）在金属箔（2）的层叠层的焊接部位（A）中形成 ），在平面图中呈直线状且沿层叠方向（S）贯通金属箔（2）的层叠层的切口（3），形成层叠状的切口 所述金属箔（2）的层在所述直线凹口的端部（3a）处沿着层叠方向（S）彼此结合; 以及将用于电阻焊接的电极（E）与焊接部位（A）进行压接，然后经由电极（E）对焊接部位（A）通电的第二步骤，对层压金属箔进行电阻焊接 （1）。

    ELECTROSTATIC ENERGY STORAGE WELDING MACHINE
    6.
    发明申请
    ELECTROSTATIC ENERGY STORAGE WELDING MACHINE 有权

    公开(公告)号：US20220055144A1

    公开(公告)日：2022-02-24

    申请号：US17396287

    申请日：2021-08-06

    Applicant: NAG System Co., Ltd.

    Inventor： Hidemasa Nagamine ,  Keiji Wada

    IPC: B23K11/30 ,  B23K11/36 ,  B23K11/25 ,  B23K11/24

    Abstract: An electrostatic energy storage welding machine for performing resistance welding while applying pressure to an object to be welded includes: a pair of welding electrodes; an energy storage section including a plurality of energy storage parts; an individual charge circuit for individually charging respective energy storage parts; an individual discharge circuit for individually discharging the respective energy storage parts; a voltage monitor circuit individually monitoring voltages of the respective energy storage parts; an individual voltage stabilization control section for performing control to further charge an energy storage part having deviation in performance in an individual manner to stabilize a voltage of that energy storage part and thereby achieve a set voltage; and an output circuit for outputting power produced by the set voltage stabilized through individual charging and electric current through individual discharging in the energy storage section to apply the electric current between the welding electrodes.

    Method for Manufacturing Laminated Metal Foil
    7.
    发明申请
    Method for Manufacturing Laminated Metal Foil 审中-公开

    公开(公告)号：US20190193186A1

    公开(公告)日：2019-06-27

    申请号：US16287501

    申请日：2019-02-27

    Applicant: NAG System Co., Ltd.

    Inventor： Takahiro Asada

    IPC: B23K11/11 ,  B23K11/18 ,  H01M4/66

    CPC classification number: B23K11/11 ,  B23K11/00 ,  B23K11/18 ,  B23K11/185 ,  B23K2101/36 ,  H01M2/30 ,  H01M4/66 ,  H01M4/661 ,  H01M4/667

    Abstract: The method includes: a first step of forming, at a weld site of laminated layers of a metal foil, using a cutter having a longitudinal cross-sectional shape of a substantially V shape, a notch penetrating the laminated metal foil along a lamination direction and having a linear shape in a plan view, to cause the laminated layers of the metal foil closely contact each other in the lamination direction at an end of the notch; a second step of bringing a welding electrode into pressure contact with the weld site and then energizing the weld site via the welding electrode to perform resistance welding, and a forming step, performed between the first and second steps, of crushing the notch and a raised portion around the notch, to form a recess to thereby compress the notch and the raised portion in the lamination direction.

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