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公开(公告)号：US12283436B2
公开(公告)日：2025-04-22
申请号：US18250179
申请日：2021-10-19
Inventor： Toshitaka Kobayashi , Eiko Ishii , Hideki Shimamoto , Ryota Morioka , Hiroki Hayashi
Abstract: A disclosed power storage device includes a power storage element, a case with a bottomed cylindrical shape having an opening at one end and housing the power storage element, and a sealing member for sealing the opening. The case has, in a vicinity of the opening, a first pressing portion pressing a side surface of the sealing member and protruding inward of the case, and a gas vent portion disposed nearer to the one end of the case than an apex which is the most protruded point of the first pressing portion. This can provide a power storage device including an explosion-proof mechanism that has high operational reliability and does not impair airtightness.
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