公开(公告)号：US11749464B2

公开(公告)日：2023-09-05

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: H01G9/035 ,  H01G9/028 ,  H01G9/145 ,  H01G9/15 ,  H01G9/10

CPC classification number: H01G9/028 ,  H01G9/035 ,  H01G9/145 ,  H01G9/15 ,  H01G9/10

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：US11482383B2

公开(公告)日：2022-10-25

申请号：US16643455

申请日：2018-08-31

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：US11443901B2

公开(公告)日：2022-09-13

申请号：US17080932

申请日：2020-10-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro Tsubaki ,  Kazuyo Saito ,  Tatsuji Aoyama

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

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：US10937601B2

公开(公告)日：2021-03-02

申请号：US16703080

申请日：2019-12-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro Tsubaki ,  Tatsuji Aoyama

IPC: H01G9/145 ,  H01G9/028 ,  H01G9/035 ,  H01G9/025 ,  H01G9/00 ,  H01G9/055 ,  H01G9/07

Abstract: An electrolytic capacitor includes an anode body having a dielectric layer; a solid electrolyte layer in contact with the dielectric layer of the anode body; and an electrolytic solution. The electrolytic solution contains a solvent and a solute. The solvent contains a glycol compound. The solute contains an acid component. The acid component contains a first aromatic compound having a hydroxyl group. A proportion of the first aromatic compound in the acid component ranges from 30% by mass to 100% by mass, inclusive.

公开(公告)号：US10692657B2

公开(公告)日：2020-06-23

申请号：US15952235

申请日：2018-04-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro Tsubaki ,  Tatsuji Aoyama

IPC: H01G9/035 ,  H01G9/028 ,  H01G9/025 ,  H01G9/00 ,  H01G9/04 ,  H01G9/07 ,  H01G9/15

Abstract: An electrolytic capacitor includes a capacitor element, a solid electrolyte layer, and an electrolyte solution. The capacitor element includes an anode body on a surface of which a dielectric layer is formed. The solid electrolyte layer is provided on the dielectric layer and includes a conductive polymer and a polymer dopant. The electrolyte solution is impregnated into the capacitor element and contains a polyhydric alcohol and a borate ester.

公开(公告)号：US10236128B2

公开(公告)日：2019-03-19

申请号：US15617712

申请日：2017-06-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuichiro Tsubaki ,  Masahiro Kajimura

IPC: B05D5/12 ,  H01G9/00 ,  H01G9/028 ,  H01G9/012 ,  H01G9/025 ,  H01G9/15

Abstract: An electrolytic capacitor production method is performed in the following procedure. An anode body having a dielectric layer is impregnated with a dispersion containing a conductive polymer and a first solvent. Then, a pH of the dispersion with which the anode body has been impregnated is adjusted or a base is added to the dispersion with which the anode body has been impregnated. Then, at least a part of the first solvent is removed from the anode body.