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    Energy storage device
    2.
    发明授权
    Energy storage device 有权

    公开(公告)号：US11588215B2

    公开(公告)日：2023-02-21

    申请号：US16964136

    申请日：2019-01-30

    Applicant: GS Yuasa International Ltd.

    Inventor： Hirokazu Kambayashi ,  Shohei Yamao ,  Takuya Aoyama

    IPC: H01M50/54 ,  H01M50/40 ,  H01M10/0587

    Abstract: An energy storage device includes: an electrode assembly; a case that houses the electrode assembly; and a spacer that is a side spacer disposed between the electrode assembly and the case. The spacer has a rear portion disposed to face the electrode-assembly end portion, a side portion extended in a direction along the side surface of the electrode assembly, and a connection that rotatably connects the side portion to the rear portion.

    Energy storage device including a rigidity changing part disposed in a vicinity of a joint portion of a first member and a second member
    6.
    发明授权
    Energy storage device including a rigidity changing part disposed in a vicinity of a joint portion of a first member and a second member 有权

    公开(公告)号：US10593926B2

    公开(公告)日：2020-03-17

    申请号：US15495377

    申请日：2017-04-24

    Applicant: GS Yuasa International Ltd.

    Inventor： Kazuto Maeda ,  Hirokazu Kambayashi ,  Shohei Yamao

    IPC: H01M2/26 ,  H01M2/22 ,  H01M10/04 ,  H01M10/0525

    Abstract: An energy storage device includes a positive electrode current collector and a negative electrode current collector which respectively have electric conductivity and are joined to each other, and cover members. The energy storage device includes swaged joint portions which join the positive electrode current collector and the cover members to each other, and are engaged with each other by fitting engagement by a concavo-convex fitting engagement structure which projects from the positive electrode current collector toward the cover members, and swaged joint portions which join the negative electrode current collector and the cover members to each other and, are engaged with each other by fitting engagement by a concavo-convex fitting engagement structure which projects from the negative electrode current collector toward the cover members. The cover members respectively include a strip-shaped projection which forms a rigidity changing part on the side of the swaged joint portion.

    Sealing member, energy storage device and method of manufacturing energy storage device
    10.
    发明授权
    Sealing member, energy storage device and method of manufacturing energy storage device 有权

    公开(公告)号：US10833299B2

    公开(公告)日：2020-11-10

    申请号：US15781450

    申请日：2016-12-28

    Applicant: GS Yuasa International Ltd.

    Inventor： Hirokazu Kambayashi ,  Kazuto Maeda

    IPC: H01M2/08 ,  H01M2/06 ,  H01M2/04 ,  H01M2/10 ,  H01G11/80 ,  H01G11/74 ,  H01G11/84 ,  H01M2/30 ,  H01G9/00 ,  H01G9/008 ,  H01G9/10

    Abstract: A sealing member (positive electrode first sealing member) disposed between a terminal (positive electrode terminal), which is provided on a case of an energy storage device, and the case or between a current collector (positive electrode current collector), which is electrically connected with the terminal, and the case. The sealing member includes a first surface (bottom surface) which faces the case and a second surface (bottom surface) which is opposite to the first surface and faces the terminal or the current collector. A first protrusion is formed on the first surface, the first protrusion surrounding a shaft portion of the terminal. A second protrusion is formed on the second surface, the second protrusion surrounding the shaft portion of the terminal. A protrusion amount of the first protrusion is different from a protrusion amount of the second protrusion.

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