ELECTROLYTIC CAPACITOR ELEMENT AND ELECTROLYTIC CAPACITOR

Organization Name

murata manufacturing co., ltd.

Inventor(s)

Kyotaro Mano of Nagaokakyo-shi (JP)

Yasutake Fukuda of Nagaokakyo-shi (JP)

Wataru Onishi of Nagaokakyo-shi (JP)

Shogo Matsui of Nagaokakyo-shi (JP)

Haruko Kubo of Nagaokakyo-shi (JP)

ELECTROLYTIC CAPACITOR ELEMENT AND ELECTROLYTIC CAPACITOR

This abstract first appeared for US patent application 20240429000 titled 'ELECTROLYTIC CAPACITOR ELEMENT AND ELECTROLYTIC CAPACITOR

Original Abstract Submitted

an electrolytic capacitor element including: a valve-acting metal substrate including a core portion made of metal foil and a porous portion along a surface of the metal foil; a dielectric layer on the porous portion; a solid electrolyte layer on the dielectric layer; and a conductive layer on the solid electrolyte layer, the conductive layer including a carbon layer, the carbon layer containing a carbon filler and a scaly insulating inorganic filler, wherein, in a cut section of the electrolytic capacitor element in a direction perpendicular to a main face of the metal foil, an average of acute angles between a longitudinal direction of a cross-section of the insulating inorganic filler in the carbon layer adjacent to the main face of the metal foil and a longitudinal direction of a cross-section of the metal foil is 0� to 45�.