ELECTRICITY STORAGE DEVICE, ELECTRIC-POWERED VEHICLE, AND MEHTOD OF MANUFACTURING AN ELECTRICITY STORAGE DEVICE

    公开(公告)号:US20220085449A1

    公开(公告)日:2022-03-17

    申请号:US17423020

    申请日:2019-11-14

    Inventor: Jun FUKUDA

    Abstract: An electricity storage device, a plurality of planar electricity storage cells each having an electricity storage element sealed in a primary packing container are stacked on each other in tiers and sealed in a secondary packing container. The primary packing container is formed of a bag of resin formed by thermally bonding together peripheral parts of a resin sheet formed by laying on each other a barrier layer with a vapor-deposited coating and a thermal adhesive resin layer. The secondary packing container includes a first packing material and a second packing material each formed of a resin sheet formed by laying on each other a metal foil and a thermal adhesive resin layer, and peripheral parts of the first and second packing materials and are thermally bonded together.

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