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：US20230260716A1

公开(公告)日：2023-08-17

申请号：US18014970

申请日：2021-07-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro TSUBAKI ,  Daisuke KUBO

IPC: H01G9/035 ,  H01G9/145

CPC classification number: H01G9/035 ,  H01G9/145

Abstract: A disclosed electrolytic capacitor includes a capacitor element, and a liquid component. The capacitor element includes an anode body having a dielectric layer at a surface of the anode body, and a conductive polymer compound covering at least part of the dielectric layer. The liquid component contains an acid component, a base component, and a solvent. The solvent includes an organic compound having a hydroxy group, and the acid component includes an organic carboxylic acid compound. The base component includes at least one selected from the group consisting of a primary amine compound and a secondary amine compound.

公开(公告)号：US20240191046A1

公开(公告)日：2024-06-13

申请号：US18583599

申请日：2024-02-21

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：US20250014838A1

公开(公告)日：2025-01-09

申请号：US18891472

申请日：2024-09-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenji KURANUKI ,  Saori UEDA ,  Junichi KURITA ,  Masaya KISO ,  Daisuke KUBO

IPC: H01G9/15 ,  H01G9/00 ,  H01G9/012 ,  H01G9/042 ,  H01G9/045 ,  H01G9/07 ,  H01G9/26

Abstract: A disclosed solid electrolytic capacitor includes: a stacked unit constituted by a stack of a plurality of capacitor units each having a capacitor element including an anode portion and a cathode portion, and a cathode foil connected to the cathode portion via a first conductive paste; and a cathode lead terminal electrically connected to the cathode portion. The cathode lead terminal has at least one side wall portion facing a side surface of the cathode portion and electrically connected to the cathode foil. This makes it possible to reduce the ESR of the solid electrolytic capacitor.

公开(公告)号：US20230013790A1

公开(公告)日：2023-01-19

申请号：US17953544

申请日：2022-09-27

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Miyoko MASUDA ,  Yuichiro TSUBAKI ,  Tatsuji AOYAMA ,  Daisuke KUBO

IPC: H01G9/10 ,  H01G9/008 ,  H01G9/08 ,  H01G2/02

Abstract: Disclosed is an electrolytic capacitor including: a capacitor element including a pair of electrodes; an electrolyte interposed between the pair of electrodes; a pair of leads electrically connected to the pair of electrodes, respectively; a case in which the capacitor element and the electrolyte are accommodated, and that has an opening; a sealing member that seals the opening, and has a pair of insertion holes for leading out the leads; an insulating plate having a pair of through holes for leading out the leads; and a resin member filled between the sealing member and the insulating plate, wherein the insulating plate has a resin bonding surface that abuts against the resin member, and a mounting surface opposed to the resin bonding surface, and includes at least one protrusion or recess on the resin bonding surface.

公开(公告)号：US20180108490A1

公开(公告)日：2018-04-19

申请号：US15841072

申请日：2017-12-13

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Daisuke KUBO ,  Masayuki TAKAHASHI ,  Yukihiro SHIMASAKI ,  Tomoyuki TASHIRO ,  Tatsuji AOYAMA

IPC: H01G9/15 ,  H01G13/04 ,  H01G9/07 ,  H01G9/02 ,  H01G9/028 ,  H01G9/00 ,  H01G9/048

CPC classification number: H01G9/151 ,  H01G9/0029 ,  H01G9/02 ,  H01G9/028 ,  H01G9/035 ,  H01G9/048 ,  H01G9/07 ,  H01G13/04

Abstract: An electrical storage device includes an electrical storage element and an electrolytic solution. The electrical storage element is formed of an anode body, a cathode body facing the anode body, and a separator interposed between the anode body and the cathode body. The separator includes a separator substrate and a conductive polymer adhering to the separator substrate. The electrical storage element is impregnated with the electrolytic solution. The separator includes a first surface layer having a first surface facing the anode body and a second surface layer having a second surface facing the cathode body. The first surface layer includes a first region that is not provided with the conductive polymer, and the second surface layer includes a second region provided with the conductive polymer.

公开(公告)号：US20220162404A1

公开(公告)日：2022-05-26

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 ,  H01G9/00 ,  H01G9/02 ,  C08J5/04

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：US20220102082A1

公开(公告)日：2022-03-31

申请号：US17427534

申请日：2020-01-29

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Daisuke KUBO ,  Shumpei MATSUSHITA ,  Kenta CHASHIRO ,  Hiroyuki ARIMA

IPC: H01G9/035 ,  H01G9/055 ,  H01G9/00 ,  H01G9/145

Abstract: A method for producing an electrolytic capacitor, the method including steps of: preparing an electrode foil; preparing a first conductive polymer dispersion containing a first conductive polymer component and a first dispersion medium; forming a first conductive polymer layer containing the first conductive polymer component, by applying the first conductive polymer dispersion to a surface of the electrode foil by a coating method, and then at least partially removing the first dispersion medium; and fabricating a capacitor element, using the electrode foil having the first conductive polymer layer.

公开(公告)号：US20180122589A1

公开(公告)日：2018-05-03

申请号：US15852315

申请日：2017-12-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Daisuke KUBO ,  Masayuki Takahashi ,  Yukihiro Shimasaki ,  Tomoyuki Tashiro ,  Tatsuji Aoyama

IPC: H01G11/52 ,  H01G13/04 ,  H01G11/58 ,  H01G9/02 ,  H01G9/035 ,  H01G9/028 ,  H01G9/15

CPC classification number: H01G9/02 ,  H01G9/028 ,  H01G9/035 ,  H01G9/151

Abstract: A power storage device has a power storage element and an electrolytic solution. The power storage element includes an anode body, a cathode body opposed to the anode body, and a separator interposed between the anode body and the cathode body. The separator includes a separator base material and a conductive polymer deposited on the separator base material. The power storage element is impregnated with the electrolytic solution. The separator has a first surface layer, which includes a first surface opposed to the anode body, and a second surface layer, which includes a second surface opposed to the cathode body. An amount of the conductive polymer deposited in a first separator half body, which is a part from a center of the separator to the first surface, is greater than an amount of the conductive polymer deposited in a second separator half body, which is a part from the center of the separator to the second surface.