公开(公告)号：US20210313119A1

公开(公告)日：2021-10-07

申请号：US17348417

申请日：2021-06-15

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Yoshiaki ISHIMARU ,  Kazunari IMAMOTO ,  Tatsuji AOYAMA

IPC: H01G9/042 ,  H01G9/15 ,  H01G9/00 ,  H01G9/028 ,  H01G9/048 ,  H01G9/145

Abstract: An electrolytic capacitor includes an anode body including a dielectric layer, a cathode body, and a conductive polymer layer and a liquid component that are disposed between the anode body and the cathode body. The cathode body includes a base material part having an outer surface that is roughened surface and has a pore opened at the outer surface, and an inorganic conductive layer covering at least a part of the outer surface. The base material part includes a first coating layer disposed along at least a part of inner wall of the pore. The first coating layer contains phosphorus.

公开(公告)号：US20210383979A1

公开(公告)日：2021-12-09

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

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：US20200079794A1

公开(公告)日：2020-03-12

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: C07D513/14 ,  C07D519/00 ,  C07D513/10 ,  C07D513/04

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 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.