公开(公告)号：US20180240601A1

公开(公告)日：2018-08-23

申请号：US15963233

申请日：2018-04-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TATSUJI AOYAMA ,  KAZUHIRO TAKATANI ,  KAZUNARI IMAMOTO ,  YOSHIAKI ISHIMARU

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

CPC classification number: H01G9/0036 ,  H01G9/028 ,  H01G9/0425 ,  H01G9/055 ,  H01G9/151

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：US20190304704A1

公开(公告)日：2019-10-03

申请号：US16359482

申请日：2019-03-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOSHIAKI ISHIMARU ,  KAZUNARI IMAMOTO ,  TATSUJI AOYAMA

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

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.