US 12,293,878 B2
Electrolytic capacitor and production method therefor
Tatsuji Aoyama, Kyoto Fu (JP); and Shumpei Matsushita, Yamaguchi Ken (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 18/247,068
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Sep. 27, 2021, PCT No. PCT/JP2021/035384
§ 371(c)(1), (2) Date Mar. 28, 2023,
PCT Pub. No. WO2022/071223, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 2020-163505 (JP), filed on Sep. 29, 2020.
Prior Publication US 2023/0411085 A1, Dec. 21, 2023
Int. Cl. H01G 9/02 (2006.01); H01G 9/028 (2006.01); H01G 9/035 (2006.01); H01G 9/042 (2006.01)
CPC H01G 9/02 (2013.01) [H01G 9/028 (2013.01); H01G 9/035 (2013.01); H01G 9/042 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An electrolytic capacitor comprising:
an anode body;
a dielectric layer formed on the anode body;
a cathode body; and
a separator and an electrolyte that are disposed between the dielectric layer and the cathode body,
wherein at least part of the separator is coated with a conductive metal oxide, and
an amount of the metal oxide coating a portion of the separator on the cathode body side is larger than an amount of the metal oxide coating a portion of the separator on the anode body side.