公开(公告)号：US11862406B2

公开(公告)日：2024-01-02

申请号：US17420703

申请日：2020-01-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kei Hirota ,  Kyohei Iwaoka ,  Hitoshi Fukui ,  Daisuke Usa ,  Kouta Muneyasu ,  Hiroki Nagayama

IPC: H01G9/025 ,  H01G9/012 ,  H01G9/048 ,  H01G9/00 ,  H01G9/10 ,  H01G9/15

CPC classification number: H01G9/025 ,  H01G9/0029 ,  H01G9/012 ,  H01G9/048 ,  H01G9/10 ,  H01G9/15

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.

公开(公告)号：US12283435B2

公开(公告)日：2025-04-22

申请号：US18510053

申请日：2023-11-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kei Hirota ,  Kyohei Iwaoka ,  Hitoshi Fukui ,  Daisuke Usa ,  Kouta Muneyasu ,  Hiroki Nagayama

IPC: H01G9/025 ,  H01G9/00 ,  H01G9/012 ,  H01G9/048 ,  H01G9/10 ,  H01G9/15

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.

公开(公告)号：US11456121B2

公开(公告)日：2022-09-27

申请号：US16965352

申请日：2019-02-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kyohei Iwaoka ,  Makoto Nagashima ,  Syusaku Koie

IPC: H01G9/042 ,  H01G9/012 ,  H01G9/00

Abstract: An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body, a dielectric layer that covers at least a part of the anode body, a solid electrolyte layer that covers at least a part of the dielectric layer, and a cathode lead-out layer that covers at least a part of the solid electrolyte layer. The cathode lead-out layer includes a carbon layer and a silver-paste layer. The carbon layer is conductive and covers at least a part of the solid electrolyte layer. And the silver-paste layer covers at least a part of the carbon layer. The carbon layer contains carbon particles and silver.