BATTERY PACKAGING MATERIAL HAVING A VALVE DEVICE

    公开(公告)号:US20240204337A1

    公开(公告)日:2024-06-20

    申请号:US18590074

    申请日:2024-02-28

    CPC classification number: H01M50/325 H01M50/105 H01M50/124 H01M10/0525

    Abstract: A battery includes a battery element, housing body, and valve device. The housing body has a laminate including a base material, barrier, and heat-sealable resin layers. The valve device is in communication with the housing body inside. A joined edge portion in which the mutually facing heat-sealable resin layers are fused together is formed in a housing body peripheral edge portion. The valve device includes first and second portions. A valve mechanism reduces the housing body internal pressure if it is increased due to gas generated in the housing body is formed in the first portion. An air passage guides gas generated in the housing body toward the valve mechanism is formed in the second portion. The first portion is located on a joined edge portion edge outer side. At least a portion of the second portion is sandwiched between the heat-sealable resin layers in the joined edge portion.

    SHEATHING MATERIAL FOR ALL SOLID STATE BATTERY, ALL SOLID STATE BATTERY, AND METHOD FOR MANUFACTURING SAME

    公开(公告)号:US20220059889A1

    公开(公告)日:2022-02-24

    申请号:US17438847

    申请日:2020-03-12

    Abstract: A sheathing material for an all solid state battery, the sheathing material including at least: a stack including a substrate layer, a barrier layer, and a heat fusible resin layer in this order; and an insulating layer provided on the heat fusible resin layer on the opposite side from the substrate layer side, wherein when an all solid state battery obtained by accommodating, in a packaged formed from the sheathing material for an all solid state battery, a battery element which includes at least a unit cell including a positive electrode active material layer, a negative electrode active material layer, and a solid state electrolyte layer stacked between the positive and negative electrode active material layers is seen in plan view, the insulating layer is disposed at a position covering the entire surface of the positive electrode active material layer in the all solid state battery.

Patent Agency Ranking