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公开(公告)号：US12283435B2
公开(公告)日：2025-04-22
申请号：US18510053
申请日：2023-11-15
Inventor： Kei Hirota , Kyohei Iwaoka , Hitoshi Fukui , Daisuke Usa , Kouta Muneyasu , Hiroki Nagayama
Abstract: A solid electrolytic capacitor includes a capacitor element. The capacitor element includes an anode foil including a base material part and a porous part disposed on a surface of the base material part, a dielectric layer disposed on at least a part of a surface of the anode foil, a solid electrolyte layer covering at least a part of the dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The anode foil includes an anode section on which the solid electrolyte layer is not disposed, a cathode formation section on which the solid electrolyte layer is disposed, and a separation section located between the anode section and the cathode formation section. A first insulating material is disposed on a surface of the porous part in the separation section. And at least a part of a region of the porous part that is covered with the first insulating material includes a second insulating material.
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公开(公告)号：US12198869B2
公开(公告)日：2025-01-14
申请号：US17762904
申请日：2020-10-23
Inventor： Daisuke Usa , Yosuke Serizawa , Honami Nishino
Abstract: An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode part, a cathode part, and an intermediate part. The anode part includes a first portion that is a part of an anode body having a porous region, and a first dielectric layer. The intermediate part includes a second portion of the anode body, a second dielectric layer, and a first insulating member containing a first resin component. The cathode part includes a third portion of the anode body, a third dielectric layer, a solid electrolyte layer covering at least a part of the third dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The first resin component contains a curing product of a first reactive compound. At least a part of the first insulating member is disposed in pores of the porous region in the intermediate part.
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公开(公告)号：US20240363291A1
公开(公告)日：2024-10-31
申请号：US18687008
申请日：2022-08-08
Inventor： Masamichi Inoue , Daisuke Usa
Abstract: An electrode foil for a solid electrolytic capacitor includes a metal foil, which has a first portion on which a solid electrolyte layer is to be formed and a second portion on which the solid electrolyte layer is not to be formed. The metal foil includes, in at least the first portion, a porous portion and a core portion continuous with the porous portion. In a cross section taken in a direction parallel to the thickness direction of the first portion, the percentage of area occupied by the core portion is 40% or more.
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公开(公告)号：US11862406B2
公开(公告)日：2024-01-02
申请号：US17420703
申请日：2020-01-23
Inventor： Kei Hirota , Kyohei Iwaoka , Hitoshi Fukui , Daisuke Usa , Kouta Muneyasu , Hiroki Nagayama
Abstract: A solid electrolytic capacitor includes a capacitor element. The capacitor element includes an anode foil including a base material part and a porous part disposed on a surface of the base material part, a dielectric layer disposed on at least a part of a surface of the anode foil, a solid electrolyte layer covering at least a part of the dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The anode foil includes an anode section on which the solid electrolyte layer is not disposed, a cathode formation section on which the solid electrolyte layer is disposed, and a separation section located between the anode section and the cathode formation section. A first insulating material is disposed on a surface of the porous part in the separation section. And at least a part of a region of the porous part that is covered with the first insulating material includes a second insulating material.
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