公开(公告)号：US20240161985A1

公开(公告)日：2024-05-16

申请号：US18549498

申请日：2022-03-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shinji KONDOU ,  Kazuya YAMASAKI ,  Takashi KAWASAKI ,  Koji YOKOYAMA ,  Hitoshi ISHIMOTO ,  Yoshihisa NAGASAKI ,  Yuji MIYACHI

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

CPC classification number: H01G9/028 ,  H01G9/0036 ,  H01G9/048 ,  H01G9/15

Abstract: An electrolytic capacitor includes an anode body, a dielectric layer that covers the anode body, a first solid electrolyte layer that covers the dielectric layer, and a second solid electrolyte layer that covers the first solid electrolyte layer. The first solid electrolyte layer contains a first conductive polymer that includes polypyrrole as a basic skeleton. The second solid electrolyte layer contains a second conductive polymer that includes polythiophene as a basic skeleton. The second solid electrolyte layer has a thickness of 1 μm or more.