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.

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：US20250062078A1

公开(公告)日：2025-02-20

申请号：US18725015

申请日：2022-12-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshiaki ISHIMARU

IPC: H01G9/012 ,  H01G9/00 ,  H01G9/055 ,  H01G9/15

Abstract: Disclosed is an electrolytic capacitor including: an electrode foil; and a lead member that is connected to the electrode foil. The lead member includes a lead wire and a plate-shaped tab portion that is provided at one end portion of the lead wire. The tab portion has a surface with an arithmetic average roughness Ra of 4 μm or more. The electrode foil and the lead member are connected by a crimping portion in an overlapping portion in which the tab portion and the electrode foil overlap each other when the electrode foil is placed on the surface of the tab portion.