公开(公告)号：US20180197685A1

公开(公告)日：2018-07-12

申请号：US15915109

申请日：2018-03-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUICHIRO TSUBAKI ,  TATSUJI AOYAMA

IPC: H01G9/145 ,  H01G9/028 ,  H01G9/035 ,  H01G9/00

CPC classification number: H01G9/145 ,  H01G9/0003 ,  H01G9/0032 ,  H01G9/0036 ,  H01G9/025 ,  H01G9/028 ,  H01G9/035 ,  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 and a base component. A mass of the acid component in the solute is greater than a mass of the base component in the solute. The acid component contains a first aromatic compound having a hydroxyl group.

公开(公告)号：US20170271085A1

公开(公告)日：2017-09-21

申请号：US15617712

申请日：2017-06-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUICHIRO TSUBAKI ,  MASAHIRO KAJIMURA

IPC: H01G9/00 ,  H01G9/15 ,  H01G9/025 ,  H01G9/012

CPC classification number: H01G9/0032 ,  H01G9/012 ,  H01G9/025 ,  H01G9/028 ,  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.

公开(公告)号：US20170256362A1

公开(公告)日：2017-09-07

申请号：US15597178

申请日：2017-05-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUICHIRO TSUBAKI

IPC: H01G9/028

CPC classification number: H01G9/0036 ,  H01G9/028 ,  H01G9/15 ,  H01G9/151 ,  H01G2009/0014

Abstract: An electrolytic capacitor includes an anode body having a dielectric layer, and a solid electrolyte layer including a conductive polymer. The solid electrolyte layer includes the conductive polymer, an anion, and a cation. The anion is an anion corresponding to at least one acid selected from the group consisting of a phosphorus-containing oxoacid, sulfuric acid, and a carboxylic acid. The cation is a nitrogen-containing cation.

公开(公告)号：US20170148575A1

公开(公告)日：2017-05-25

申请号：US15427722

申请日：2017-02-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUICHIRO TSUBAKI ,  TATSUJI AOYAMA

IPC: H01G9/035 ,  H01G9/07 ,  H01G9/00

CPC classification number: H01G9/035 ,  H01G9/0032 ,  H01G9/028 ,  H01G9/07

Abstract: A method for manufacturing an electrolytic capacitor of the present disclosure includes first to third steps. In the first step, a capacitor element is prepared that includes an anode body on which a dielectric layer is formed. In the second step, the capacitor element is impregnated with a first treatment solution containing at least a conductive polymer and a first solvent. In the third step, the capacitor element is, after the second step, impregnated with a second treatment solution that contains a polyol compound having 3 or more hydroxyl groups per molecule.