ELECTRODE FOIL FOR ELECTROLYTIC CAPACITORS, AND ELECTROLYTIC CAPACITOR

An electrode foil for an electrolytic capacitor includes a metal foil that includes a porous portion and a core portion continuous to the porous portion. The metal foil has a main surface in which pores in the porous portion are open. The porous portion includes a plurality of recessed portions that...

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Bibliographische Detailangaben
Hauptverfasser:	OTSUKA, Yuji, YOSHIMURA, Mitsuhisa, TSUBAKI, Masami, KADOKAWA, Toshifumi
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE ELECTRICITY
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Beschreibung
Zusammenfassung:	An electrode foil for an electrolytic capacitor includes a metal foil that includes a porous portion and a core portion continuous to the porous portion. The metal foil has a main surface in which pores in the porous portion are open. The porous portion includes a plurality of recessed portions that are open in the main surface and distributed in a dot pattern in an in-plane direction of the metal foil. The pores in the porous portion have an opening length smaller than 2 μm, and the recessed portions have an opening length of 2 μm or more.