ELECTRODE FOIL FOR ELECTROLYTIC CAPACITOR, ELECTROLYTIC CAPACITOR, AND MANUFACTURING METHOD THEREOF

To provide an electrode foil for a capacitor in which a good dielectric layer is formed deep into a metal porous part by etching, and a method for manufacturing the same.SOLUTION: An electrode foil for an electrolytic capacitor includes a metal porous portion 112, and a metal core portion 111 contin...

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Bibliographische Detailangaben
Hauptverfasser:	NAKANO SHOSUKE, YOSHIMURA MITSUHISA, TSUBAKI MASAMI, OGAWA YOSHIKAZU, YOSHIDA HIROSHI, KURIHARA NAOMI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE ELECTRICITY
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Beschreibung
Zusammenfassung:	To provide an electrode foil for a capacitor in which a good dielectric layer is formed deep into a metal porous part by etching, and a method for manufacturing the same.SOLUTION: An electrode foil for an electrolytic capacitor includes a metal porous portion 112, and a metal core portion 111 continuous to the metal porous portion, and when the porous metal portion is divided into three equal parts of a first region R1, a second region R2, and a third region R3 in the thickness direction of the porous metal portion in order from the metal core side, and the porosity P1, P2, and P3 of the first, second, and third regions satisfy P1