公开(公告)号：US20240145177A1

公开(公告)日：2024-05-02

申请号：US18546916

申请日：2022-02-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tatsuji AOYAMA ,  Tomoyuki TASHIRO ,  Shumpei MATSUSHITA

IPC: H01G9/00

CPC classification number: H01G9/0032

Abstract: The disclosed manufacturing method includes: a step (i) of preparing an anode substrate having a metal foil exposed at an end surface of the anode substrate; a step (ii) of connecting a plurality of anode lead members to the anode substrate and forming a second dielectric layer on the end surface; a step (iii) of forming a plurality of the anode bodies to which the anode lead members are connected by cutting the anode substrate at a predetermined length; a step (iv) of forming a laminate by laminating the anode body, a cathode body, and a separator; and a step (v) of impregnating the laminate with a conductive polymer and an electrolytic solution. Step (ii) includes: connecting the plurality of anode lead members to the anode substrate; and forming the second dielectric layer on the end surface by immersing the anode substrate in a chemical conversion liquid.

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：US20210383979A1

公开(公告)日：2021-12-09

申请号：US17411651

申请日：2021-08-25

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tatsuji AOYAMA ,  Kazuhiro TAKATANI ,  Kazunari IMAMOTO ,  Yoshiaki ISHIMARU

IPC: H01G9/00 ,  H01G9/028 ,  C07D513/04 ,  C07D513/10 ,  C07D513/14 ,  C07D519/00 ,  H01G9/042 ,  H01G9/15

Abstract: An electrolytic capacitor includes a capacitor element, a solid electrolyte layer, an electrolyte solution. The capacitor element has an anode foil with a dielectric layer, and a cathode foil. The solid electrolyte layer is provided between the anode foil and the cathode foil. And the capacitor element is impregnated with the electrolyte solution. The cathode foil includes a covering layer that contains at least one metal selected from titanium and nickel or a compound of the at least one metal. And the solid electrolyte layer contains a conductive polymer, a polymer dopant, and a base component.

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.

公开(公告)号：US20200079794A1

公开(公告)日：2020-03-12

申请号：US16681397

申请日：2019-11-12

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tatsuji AOYAMA ,  Kazuhiro TAKATANI ,  Kazunari IMAMOTO ,  Yoshiaki ISHIMARU

IPC: C07D513/14 ,  C07D519/00 ,  C07D513/10 ,  C07D513/04

Abstract: An electrolytic capacitor includes a capacitor element, a solid electrolyte layer, and a liquid substance. The capacitor element includes an anode foil with a dielectric layer, and a cathode foil. The solid electrolyte layer is provided between the anode foil and the cathode foil. The capacitor element is impregnated with the liquid substance that includes a solvent and a solute. The solute contains at least one selected from the group consisting of an acid component, a nitro compound, and a phenol compound. The cathode foil includes a covering layer that contains at least one selected from the group consisting of titanium, nickel, a compound including titanium, and a compound including nickel. And the solid electrolyte layer contains a conductive polymer and a base component.