公开(公告)号：US10861654B2

公开(公告)日：2020-12-08

申请号：US16172458

申请日：2018-10-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Youichirou Uka ,  Makoto Nagashima ,  Tetsuro Iwasa ,  Koji Okamoto

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

Abstract: An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a solid electrolyte layer covering at least a portion of the dielectric layer. The solid electrolyte layer includes a π-conjugated conductive polymer, a high-molecular-weight dopant having an acid group, and a water-soluble polymer. The water-soluble polymer is a copolymer including a hydrophilic monomer unit having a hydrophilic group. The hydrophilic group is at least one group selected from the group consisting of a carboxyl group, an acid anhydride group, a phenolic hydroxyl group, and a C2-3 alkylene oxide group.

公开(公告)号：US10679795B2

公开(公告)日：2020-06-09

申请号：US15841500

申请日：2017-12-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Nobuyuki Yamaguchi ,  Koji Fukuchi ,  Tetsuro Iwasa ,  Koji Okamoto ,  Takahiro Kobayashi ,  Yasuo Tanaka ,  Ryo Morioka

IPC: H01G9/048 ,  H01G9/042 ,  H01G9/028 ,  H01G9/00

Abstract: An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, a first conductive polymer layer covering at least a part of the dielectric layer, and a second conductive polymer layer covering at least a part of the first conductive polymer layer. The first conductive polymer layer contains a first conductive polymer and a first silane compound. The second conductive polymer layer contains a second conductive polymer and a basic compound. The basic compound may be an amine compound.

公开(公告)号：US10199176B2

公开(公告)日：2019-02-05

申请号：US15234822

申请日：2016-08-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Youichirou Uka ,  Makoto Nagashima ,  Tetsuro Iwasa ,  Koji Okamoto

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

Abstract: An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a solid electrolyte layer covering at least a portion of the dielectric layer. The solid electrolyte layer includes a first conductive polymer layer covering at least a portion of the dielectric layer, and a second conductive polymer layer covering at least a portion of the first conductive polymer layer. The second conductive polymer layer includes a second conductive polymer and a water-soluble polymer. The water-soluble polymer is a copolymer including a hydrophilic monomer unit having a hydrophilic group. The hydrophilic group is at least one group selected from the group consisting of a carboxyl group, an acid anhydride group, a phenolic hydroxyl group, and a C2-3 alkylene oxide group.

公开(公告)号：US10991514B2

公开(公告)日：2021-04-27

申请号：US16124429

申请日：2018-09-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Nobuyuki Yamaguchi ,  Koji Fukuchi ,  Koji Okamoto ,  Tetsuro Iwasa ,  Takahiro Kobayashi ,  Yasuo Tanaka ,  Ryo Morioka

IPC: H01G9/00 ,  H01G9/028 ,  H01G9/048 ,  H01G9/008

Abstract: A method for producing an electrolytic capacitor includes: a first step of preparing an anode body, and forming a dielectric layer on a surface of the anode body; a second step of forming a first conductive polymer layer on a surface of the dielectric layer, the first conductive polymer layer including a first conductive polymer and a first silane compound; a third step of bringing the first conductive polymer layer into contact with a first treatment liquid; and a fourth step of providing a second silane compound to the first conductive polymer layer after the third step.

公开(公告)号：US10475590B2

公开(公告)日：2019-11-12

申请号：US15870839

申请日：2018-01-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Nobuyuki Yamaguchi ,  Koji Fukuchi ,  Koji Okamoto ,  Tetsuro Iwasa ,  Takahiro Kobayashi ,  Yasuo Tanaka ,  Ryo Morioka

IPC: H01G9/025 ,  H01G9/028 ,  H01G9/00 ,  H01G9/07 ,  C08G61/12 ,  C09D5/24 ,  H01G9/15 ,  C08K5/42 ,  C09D165/00 ,  H01G9/042 ,  H01G9/052

Abstract: An electrolytic capacitor includes: an anode body; a dielectric layer formed on the anode body; a first conductive polymer layer which covers at least a portion of the dielectric layer; and a second conductive polymer layer which covers at least a portion of the first conductive polymer layer. The first conductive polymer layer includes a first layer and a second layer. The first layer contains a first conductive polymer and a first dopant, and covers at least a portion of the dielectric layer. The second layer is formed on the first layer, and contains a first silane compound. The second conductive polymer layer contains a second conductive polymer, a second dopant, and a basic compound.