US 12,191,091 B2
Solid electrolytic capacitor element and solid electrolytic capacitor
Takuya Kurimoto, Kyoto (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/999,558
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Jun. 16, 2021, PCT No. PCT/JP2021/022956
§ 371(c)(1), (2) Date Nov. 21, 2022,
PCT Pub. No. WO2021/261359, PCT Pub. Date Dec. 30, 2021.
Claims priority of application No. 2020-107156 (JP), filed on Jun. 22, 2020.
Prior Publication US 2023/0197355 A1, Jun. 22, 2023
Int. Cl. H01G 9/042 (2006.01); H01G 9/15 (2006.01)
CPC H01G 9/0425 (2013.01) [H01G 9/15 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A solid electrolytic capacitor element comprising:
an anode body;
a dielectric layer disposed on a surface of the anode body;
a solid electrolyte layer covering at least a part of the dielectric layer; and
a cathode lead-out layer covering at least a part of the solid electrolyte layer,
wherein:
the cathode lead-out layer includes a carbon layer, the carbon layer being in contact with the solid electrolyte layer and covering at least a part of the solid electrolyte layer, and
the carbon layer includes a carbonaceous material and a cyclodextrin compound, the cyclodextrin compound having a concentration of a saturated aqueous solution at 25° C. of 1.5 mass % or more.