公开(公告)号：US11081287B2

公开(公告)日：2021-08-03

申请号：US16656161

申请日：2019-10-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhiro Takatani

IPC: H01G9/028 ,  H01G9/00 ,  H01G9/042 ,  H01G11/48 ,  H01G11/52 ,  H01G9/07

Abstract: An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body that includes a dielectric layer disposed at a surface of the anode body, a cathode body, and a separator disposed between the anode body and the cathode body. The capacitor element is impregnated with an electrolytic solution. A conductive polymer and a polyacrylic acid-based compound are provided on the dielectric layer.

公开(公告)号：US09892859B2

公开(公告)日：2018-02-13

申请号：US14860222

申请日：2015-09-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhiro Takatani ,  Tatsuji Aoyama

IPC: C08G61/00 ,  C08L65/00 ,  H01G9/00 ,  H01G9/028 ,  C08G61/12 ,  H01G9/15 ,  H01G9/02 ,  H01G9/055 ,  H01G9/07 ,  H01G9/08 ,  H01G9/045

CPC classification number: H01G9/0036 ,  C08G61/126 ,  C08G2261/1424 ,  C08G2261/3223 ,  C08G2261/794 ,  C08L65/00 ,  H01G9/02 ,  H01G9/028 ,  H01G9/045 ,  H01G9/055 ,  H01G9/07 ,  H01G9/08 ,  H01G9/151 ,  C08L25/18

Abstract: A dispersion liquid including one of thiophene and derivatives thereof, a polyanion, and a solvent is prepared. The dispersion liquid is mixed with a first oxidizing agent producing iron ions so as to oxidatively polymerize the one of thiophene and derivatives thereof. At the completion of the polymerization, the conductive polymer microparticle dispersion contains trivalent iron ions with a concentration of 3 to 30 parts by weight, inclusive, with respect to 100 parts by weight of the conductive polymer microparticle.

公开(公告)号：US12266482B2

公开(公告)日：2025-04-01

申请号：US17815261

申请日：2022-07-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhiro Takatani

IPC: H01G9/028 ,  H01G9/00 ,  H01G9/035 ,  H01G9/048

Abstract: An electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body including a dielectric layer on a surface of the anode body, and a conductive polymer covering a part of the dielectric layer. The conductive polymer contains a first monomer unit corresponding to a 3,4-ethylenedioxythiophene compound and a second monomer unit corresponding to a 3,4-dialkoxythiophene compound.

公开(公告)号：US12112900B2

公开(公告)日：2024-10-08

申请号：US17811265

申请日：2022-07-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro Tsubaki ,  Kazuhiro Takatani ,  Mitsuhisa Yoshimura ,  Miyoko Masuda

IPC: H01G9/15 ,  H01G9/052 ,  H01G9/10

CPC classification number: H01G9/15 ,  H01G9/052 ,  H01G9/10

Abstract: An electrolytic capacitor includes a capacitor element, a liquid component, a case housing the capacitor element and the liquid component, and a sealing member sealing the case. the capacitor element includes a porous sintered body including a dielectric layer, a cathode foil facing at least a part of the porous sintered body, and a conductive polymer covering at least a part of a surface of the dielectric layer. The conductive polymer is in contact with the cathode foil. And a void in the capacitor element is impregnated with the liquid component.

公开(公告)号：US10593486B2

公开(公告)日：2020-03-17

申请号：US15963233

申请日：2018-04-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tatsuji Aoyama ,  Kazuhiro Takatani ,  Kazunari Imamoto ,  Yoshiaki Ishimaru

IPC: H01G9/00 ,  H01G9/028 ,  H01G9/042 ,  H01G9/15 ,  H01G9/055

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：US09472348B2

公开(公告)日：2016-10-18

申请号：US14859240

申请日：2015-09-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhiro Takatani ,  Tatsuji Aoyama

IPC: H01G9/00 ,  H01G9/028 ,  C08G61/12 ,  C08L65/00 ,  B01J39/20 ,  H01G9/15 ,  H01B1/12 ,  H01B1/20

CPC classification number: H01G9/0036 ,  B01J39/20 ,  C08G61/126 ,  C08G2261/128 ,  C08G2261/1424 ,  C08G2261/18 ,  C08G2261/3223 ,  C08G2261/43 ,  C08G2261/794 ,  C08L65/00 ,  H01B1/12 ,  H01B1/20 ,  H01G9/0032 ,  H01G9/028 ,  H01G9/15 ,  H01G9/151 ,  C08L25/18

Abstract: A dispersion liquid including one of thiophene and derivatives thereof, a polyanion, and a solvent is prepared. Then, the dispersion liquid is mixed with an oxidizing agent so as to oxidatively polymerize the one of thiophene and derivatives thereof. During the oxidative polymerization, a temperature of the dispersion liquid is 35° C. or less and a dissolved oxygen concentration of the dispersion liquid is 7 ppm or less.

Abstract translation: 制备包括噻吩及其衍生物，聚阴离子和溶剂中的一种的分散液。 然后，将分散液与氧化剂混合，使噻吩及其衍生物中的一种氧化聚合。 在氧化聚合期间，分散液的温度为35℃以下，分散液的溶解氧浓度为7ppm以下。

公开(公告)号：US11945923B2

公开(公告)日：2024-04-02

申请号：US17427530

申请日：2020-01-29

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Daisuke Kubo ,  Hiroyuki Arima ,  Tomoyuki Tashiro ,  Kazuhiro Takatani ,  Kenta Chashiro ,  Shumpei Matsushita

IPC: C08J5/18 ,  C08J5/04 ,  H01G9/00 ,  H01G9/02

CPC classification number: C08J5/18 ,  C08J5/045 ,  C08J5/046 ,  H01G9/0032 ,  H01G9/02 ,  C08J2365/00 ,  C08J2401/02 ,  C08J2433/26 ,  C08J2467/02 ,  C08J2477/00

Abstract: Disclosed is a method for producing an electrolytic capacitor, the method including the steps of preparing an anode foil that includes a dielectric layer, a cathode foil, and a fiber structure; preparing a conductive polymer dispersion liquid that contains a conductive polymer component and a dispersion medium; producing a separator by applying the conductive polymer dispersion liquid to the fiber structure and then removing at least a portion of the dispersion medium; and producing a capacitor element by sequentially stacking the anode foil, the separator, and the cathode foil. The dispersion medium contains water. The fiber structure contains a synthetic fiber in an amount of 50 mass % or more. The fiber structure has a density of 0.2 g/cm3 or more and less than 0.45 g/cm3.

公开(公告)号：US11545305B2

公开(公告)日：2023-01-03

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 ,  H01G9/055

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：US11417472B2

公开(公告)日：2022-08-16

申请号：US16910955

申请日：2020-06-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhiro Takatani ,  Akito Nakamura

IPC: H01G9/025 ,  H01G9/00 ,  C07C309/44 ,  C08K5/08 ,  H01G9/15

Abstract: An electrolytic capacitor including an anode body having a dielectric layer, and a solid electrolyte layer. The solid electrolyte layer contains an electrically conductive material, and an additive. The conductive material contains a π-conjugated polymer, and a polymer dopant doped in the π-conjugated polymer and having a first anionic group. The additive includes a quinone compound having a second anionic group.

公开(公告)号：US11158463B2

公开(公告)日：2021-10-26

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: H01G9/00 ,  H01G9/028 ,  C07D513/04 ,  C07D513/10 ,  C07D513/14 ,  C07D519/00 ,  H01G9/042 ,  H01G9/15 ,  H01G9/055

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 one of an acid component, a nitro compound, or 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. 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.