公开(公告)号：US11127533B2

公开(公告)日：2021-09-21

申请号：US16102682

申请日：2018-08-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yukari Shimamoto ,  Hiroshi Yoshida ,  Kyohei Kobayashi

IPC: H01G9/00 ,  H01G9/055 ,  H01G9/04 ,  H01G9/08 ,  H01G9/012 ,  H01G9/15 ,  H01G9/025 ,  H01G9/042 ,  H01G9/07

Abstract: A solid electrolytic capacitor includes a capacitor element. The capacitor element includes an anode foil, a dielectric layer, a solid electrolyte layer, and a cathode lead-out layer. The anode foil includes a first part and a second part other than the first part. The first part has an etched surface, and a second part has an unetched surface. The dielectric layer is formed on the etched surface of the first part in the anode foil. The solid electrolyte layer is formed on at least a part of a surface of the dielectric layer. The cathode lead-out layer is formed on at least a part of a surface of the solid electrolyte layer. An insulating protective layer covers a boundary part between the first part and the second part as well as an end of the cathode lead-out layer and an end of the solid electrolyte layer.