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    WATER-IMPERMEABLE DEGASSING FILM FOR POWER STORAGE DEVICE
    4.
    发明公开
    WATER-IMPERMEABLE DEGASSING FILM FOR POWER STORAGE DEVICE 审中-公开

    公开(公告)号：US20240204351A1

    公开(公告)日：2024-06-20

    申请号：US18288062

    申请日：2022-05-19

    Applicant: DAI NIPPON PRINTING CO., LTD.

    Inventor： Miho SASAKI

    IPC: H01M50/30

    CPC classification number: H01M50/394

    Abstract: A water-impermeable degassing film for a power storage device. The water-impermeable degassing film is made to adhere to the exterior material of a power storage device so as to block a communication section provided to the exterior material and is used to discharge gas generated in the interior of the power storage device from the communication section. The water-impermeable degassing film is configured from a laminate having at least a substrate layer and an adhesive layer, and the adhesive layer of the water-impermeable degassing film is made to adhere to the surface of the power storage device.

    EXTERIOR MATERIAL FOR POWER STORAGE DEVICES, METHOD FOR MANUFACTURING SAME, AND POWER STORAGE DEVICE
    7.
    发明公开
    EXTERIOR MATERIAL FOR POWER STORAGE DEVICES, METHOD FOR MANUFACTURING SAME, AND POWER STORAGE DEVICE 审中-公开

    公开(公告)号：US20230369689A1

    公开(公告)日：2023-11-16

    申请号：US18026994

    申请日：2021-09-30

    Applicant: DAI NIPPON PRINTING CO., LTD.

    Inventor： Kenta HIRAKI ,  Chihiro NAKAMURA ,  Miho SASAKI ,  Atsuko TAKAHAGI

    IPC: H01M50/129 ,  H01M50/131

    CPC classification number: H01M50/129 ,  H01M50/131

    Abstract: An exterior material for power storage devices which is formed from at least a layered body comprising a base material layer, a barrier layer, and a heat-fusible resin layer in this order, wherein the base material layer contains a resin film, the resin film has a shrinkage ratio of 1.0% to less than 5.0% when immersed in hot water at 95° C. for 30 minutes, and the resin film has a stress value, at 10% stretching in the tensile test described hereafter, of 100 MPa or higher in both the machine direction and the transverse direction. After storing a sample in a 23° C., 40% RH environment for 24 hours, the tensile test is performed under conditions of a sample width of 6 mm, a gauge length of 35 mm, and a tension rate of 300 mm/min in a 23° C., 40% RH environment, and the stress value at 10% stretching (displacement of 3.5 mm) is measured.

    ALL-SOLID-STATE BATTERY AND METHOD FOR MANUFACTURING SAME
    8.
    发明申请
    ALL-SOLID-STATE BATTERY AND METHOD FOR MANUFACTURING SAME 有权

    公开(公告)号：US20220085444A1

    公开(公告)日：2022-03-17

    申请号：US17424650

    申请日：2020-01-23

    Applicant: DAI NIPPON PRINTING CO., LTD.

    Inventor： Miho SASAKI ,  Ryo FUJIWARA ,  Makoto AMANO

    IPC: H01M50/126 ,  H01M10/0585

    Abstract: An all-solid-state battery contained in an exterior material having a barrier layer in which deterioration is effectively suppressed even when the all-solid-state battery is constrained in a high-pressure state. The all-solid-state battery has a battery element contained in a package formed of an exterior material, the battery element includes at least a unit cell including: a positive electrode active material layer; a negative electrode active material layer; and a solid electrolyte layer laminated between the positive electrode active material layer and the negative electrode active material layer, wherein the exterior material is composed of a laminate having, in the following order: at least a barrier layer; a barrier layer protection film formed on the surface of the barrier layer; and a heat-fusible resin layer.

    POWER STORAGE DEVICE
    9.
    发明申请
    POWER STORAGE DEVICE 有权

    公开(公告)号：US20250079588A1

    公开(公告)日：2025-03-06

    申请号：US18722339

    申请日：2022-12-27

    Applicant: DAI NIPPON PRINTING CO., LTD.

    Inventor： Koki AKUTSU ,  Miho SASAKI

    IPC: H01M50/184 ,  H01M50/105 ,  H01M50/178

    Abstract: A power storage device includes an electrode body, and an exterior body for sealing the electrode body. The exterior body includes an exterior film for wrapping the electrode body so as to have a projection section that projects farther outward relative to the electrode body, and a seal section sealed by bonding mutually facing surfaces of the exterior film, and includes a projection seal section formed at the projection section, and a back-lining seal section that extends in a direction intersecting the direction in which the projection seal section extends in plan view.

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