公开(公告)号：EP4207224A1

公开(公告)日：2023-07-05

申请号：EP21861547.4

申请日：2021-08-24

申请人： Nippon Chemi-Con Corporation

发明人： FUKUSHIMA, Kouta ,  TANABE, Keisuke

IPC分类号： H01G9/00 ,  H01G9/008 ,  H01G9/042 ,  H01G9/055

摘要： An electrolytic capacitor with improved connectivity between a cathode body including a carbon layer and a lead terminal, and a production method thereof are provided. The electrolytic capacitor 1 includes an anode body 2 having a dielectric oxide film 5 on a surface thereof, a cathode body 3 having a cathode foil 31 and a carbon layer 32 formed on the cathode foil 31, electrolytic solution 6 interposed between the anode body 2 and the cathode body 3, and a lead terminal 7 connected to each of the anode body 2 and the cathode body 3 by cold pressure welding. A maximum static friction coefficient of a surface of the carbon layer of the cathode body is 0.6 or more.