US 12,444,546 B2
Electrolytic capacitor and method for producing electrolytic capacitor
Kouta Fukushima, Fukushima (JP); and Keisuke Tanabe, Fukushima (JP)
Assigned to Nippon Chemi-Con Corporation, Tokyo (JP)
Appl. No. 18/020,417
Filed by Nippon Chemi-Con Corporation, Tokyo (JP)
PCT Filed Aug. 24, 2021, PCT No. PCT/JP2021/030968
§ 371(c)(1), (2) Date Feb. 8, 2023,
PCT Pub. No. WO2022/045122, PCT Pub. Date Mar. 3, 2022.
Claims priority of application No. 2020-144770 (JP), filed on Aug. 28, 2020.
Prior Publication US 2024/0038451 A1, Feb. 1, 2024
Int. Cl. H01G 9/042 (2006.01); H01G 9/00 (2006.01); H01G 9/012 (2006.01)
CPC H01G 9/0425 (2013.01) [H01G 9/0029 (2013.01); H01G 9/012 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An electrolytic capacitor comprising:
an anode body having a dielectric layer on a surface thereof;
a cathode body having a cathode foil and a carbon layer formed by pressing on the cathode foil;
an electrolyte interposed between the anode body and the cathode body; and
a lead terminal connected to the anode body and the cathode body by cold pressure welding,
wherein a maximum static friction coefficient of a surface of the carbon layer of the cathode body is 0.6 or more.