公开(公告)号：US20250087424A1

公开(公告)日：2025-03-13

申请号：US18962950

申请日：2024-11-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naoya KAWAMURA ,  Hitoshi FUKUI

IPC: H01G9/012 ,  H01G9/028 ,  H01G9/10 ,  H01G9/15

Abstract: A disclosed solid electrolytic capacitor includes a capacitor element, a lead terminal and a lead terminal that are electrically connected to the capacitor element, and an exterior body that seals a portion of the lead terminal, a portion of the lead terminal, and the capacitor element. The exterior body includes a resin part containing a resin. The resin has a glass transition point Tg of 140° C. or less, where the glass transition point Tg is a temperature of the resin part at which a loss modulus measured by nanoscale dynamic viscoelastic measurement using a nanoindentation method changes from an increasing state to a decreasing state. The hardness of the resin part measured by the nanoindentation method is 0.08 GPa or less in a temperature range from the glass transition point Tg to 260° C. inclusive.

公开(公告)号：US20250104927A1

公开(公告)日：2025-03-27

申请号：US18968787

申请日：2024-12-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Katsuhiro OGASAWARA ,  Atsushi TANAKA ,  Hitoshi FUKUI

IPC: H01G9/012 ,  H01G9/15

Abstract: A disclosed solid electrolytic capacitor element includes an anode section disposed on one end side and a cathode section disposed on the other end side. The cathode section has a pair of principal surfaces, a pair of side surfaces each connecting the pair of principal surfaces to each other and extending along a direction connecting the one end and the other end, and a first end surface connecting the pair of principal surfaces to each other and located at the other end. At least one of the side surfaces has at least one recess including a first end on the one end side and a second end on the other end side. A distance D1 between the first end surface and the second end is 0.05 L1 or more, where the L1 represents a distance between the one end and the other end.

公开(公告)号：US20240079184A1

公开(公告)日：2024-03-07

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

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：US20230386757A1

公开(公告)日：2023-11-30

申请号：US18450206

申请日：2023-08-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hitoshi FUKUI

IPC: H01G9/028 ,  H01G9/15

CPC classification number: H01G9/028 ,  H01G9/15

Abstract: An electrolytic capacitor includes an anode body, a dielectric layer disposed on the anode body, and a solid electrolyte layer disposed on the dielectric layer. The solid electrolyte layer includes a first layer and a second layer disposed on the first layer. The first layer contains a first conductive polymer. And the second layer contains a second conductive polymer that is a self-doped conductive polymer.

公开(公告)号：US20230178306A1

公开(公告)日：2023-06-08

申请号：US17923767

申请日：2021-04-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takuya KURIMOTO ,  Hitoshi FUKUI

IPC: H01G9/025 ,  H01G9/042

CPC classification number: H01G9/025 ,  H01G9/0425

Abstract: A solid electrolytic capacitor element includes an anode body, a dielectric layer formed at the surface of the anode body, and a cathode portion that covers at least a part of the dielectric layer. The cathode portion includes a solid electrolyte layer that covers at least a part of the dielectric layer. The solid electrolyte included in the solid electrolyte layer has a weight reduction ratio of 3% or less when measured through thermogravimetric analysis in which the solid electrolyte is heated to 180° C., is kept at 180° C. for 20 minutes, is cooled from 180° C. to 30° C., and is then heated from 30° C. to 260° C. at a rate of 20° C./min.