公开(公告)号：US20250046528A1

公开(公告)日：2025-02-06

申请号：US18723795

申请日：2022-12-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro TSUBAKI ,  Tatsuji AOYAMA ,  Kazuyo SAITO

IPC: H01G9/10 ,  H01G9/00 ,  H01G9/048

Abstract: An electrolytic capacitor includes a container with an opening, a capacitor element contained in the container, and a sealing body that seals the opening. The capacitor element includes an anode body provided with a dielectric layer on its surface, and a conductive polymer that covers a portion of the dielectric layer. The sealing body includes an elastic polymer. An antioxidant component is present in a space closed by the container and the sealing body. The antioxidant component includes a first antioxidant having no boiling point or a boiling point of 320° C. or higher.

公开(公告)号：US20230368982A1

公开(公告)日：2023-11-16

申请号：US18246089

申请日：2021-09-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro TSUBAKI ,  Kazuyo SAITO ,  Tatsuji AOYAMA

IPC: H01G9/035 ,  H01G9/145

CPC classification number: H01G9/035 ,  H01G9/145

Abstract: An electrolytic capacitor includes a capacitor element and a liquid component, wherein the capacitor element includes an anode body having a dielectric layer on a surface thereof, and a conductive polymer compound covering at least a portion of the dielectric layer. The liquid component includes an acid component, a base component, a solvent, and an antioxidant. The solvent includes water and a polyol compound. The acid component includes a coordination compound including a central atom, and an organic molecule having a plurality of coordination atoms bonded to the central atom, and at least one of the plurality of coordination atoms is an oxygen atom bonded to a carbonyl group.

公开(公告)号：US20220392713A1

公开(公告)日：2022-12-08

申请号：US17884290

申请日：2022-08-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro TSUBAKI ,  Kazuyo SAITO ,  Tatsuji AOYAMA

IPC: H01G9/028 ,  H01G9/15 ,  H01G9/035

Abstract: An electrolytic capacitor includes an anode body having a dielectric layer disposed on a surface of the anode body, a solid electrolyte layer that is in contact with the dielectric layer, and an electrolytic solution. The solid electrolyte layer includes a conductive polymer. The electrolytic solution contains a first base component, a first acid component, and a second acid component. The first base component includes an amidine compound. The first acid component includes a composite compound of an inorganic acid and an organic acid. The second acid component includes at least one selected from a group consisting of boric acid, phosphoric acid, phosphorous acid, hypophosphorous acid, and phosphonic acid.

公开(公告)号：US20220189705A1

公开(公告)日：2022-06-16

申请号：US17688359

申请日：2022-03-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro TSUBAKI ,  Tatsuji AOYAMA ,  Kazuyo SAITO ,  Yuji OTSUKA

IPC: H01G9/035 ,  H01G9/028

Abstract: An electrolytic capacitor includes a capacitor element and an electrolytic solution. The capacitor element includes: an anode body including a dielectric layer; a cathode body; and a solid electrolyte in contact with the dielectric layer. The electrolytic solution includes a solvent, a solute, and a polymer component. The solvent includes an ethylene glycol compound. The polymer component includes polyalkylene glycol. The polyalkylene glycol includes at least one of (i) a mixture of polyoxyethylene and polyoxypropylene and (ii) an oxyethylene-oxypropylene copolymer. In the polyalkylene glycol, a molar ratio m/n of oxyethylene units to oxypropylene units is greater than 1.

公开(公告)号：US20210142953A1

公开(公告)日：2021-05-13

申请号：US17262929

申请日：2019-07-26

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yuichiro TSUBAKI ,  Daisuke KUBO ,  Tatsuji AOYAMA

IPC: H01G9/025 ,  H01G9/15

Abstract: An electrolytic capacitor according to the present disclosure includes an anode body, a cathode body, a solid electrolyte, and a liquid component. The anode body has a surface provided with a dielectric layer. The solid electrolyte is in contact with the dielectric layer, is disposed between the anode body and the cathode body and contains conductive polymer. The liquid component is in contact with the dielectric layer and the solid electrolyte and contains a solvent and an acid component. The acid component contains a first polymer acid component including a sulfonic acid group or a carboxylic acid group.