公开(公告)号：US12283436B2

公开(公告)日：2025-04-22

申请号：US18250179

申请日：2021-10-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toshitaka Kobayashi ,  Eiko Ishii ,  Hideki Shimamoto ,  Ryota Morioka ,  Hiroki Hayashi

IPC: H01G9/10 ,  H01G9/00 ,  H01G9/12

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.

公开(公告)号：US12205773B2

公开(公告)日：2025-01-21

申请号：US17904841

申请日：2021-03-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Keita Uenaka ,  Kei Hirota ,  Hideki Shimamoto ,  Nao Matsumura

IPC: H01G9/028 ,  H01G9/012 ,  H01G9/15

Abstract: An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body, a dielectric layer disposed on a surface of the anode body, a solid electrolyte layer covering at least a part of the dielectric layer, and a first layer covering at least a part of the solid electrolyte layer. The first layer is in contact with the solid electrolyte layer. The first layer constitutes at least a part of the cathode lead-out layer. An electrode potential Ps of the solid electrolyte layer is higher than an electrode potential P1 of the first layer.