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US 2006/0076243 A1Published application
Electrode foil for electrolytic capacitor and method for manufacturing the same
OwnerTatsuji Aoyama, Yoshihiro Watanabeinventors
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Abstract
A manufacturing method including: forming a boehmite film on a roughened surface of an aluminum foil; forming a particulate gel of a valve metal oxide on the surface of the aluminum foil on which the boehmite film is formed; then carrying out heat treatment for forming particulate valve metal oxide; and anodizing.
Claims9
A method of manufacturing an electrode foil for an electrolytic capacitor, the method comprising:
- forming a boehmite film on a roughened surface of an aluminum foil;
- forming a particulate gel of a valve metal on the surface of the aluminum foil on which the boehmite film is formed;
- carrying out heat treatment for forming a particulate valve metal oxide from the particulate gel of a valve metal;
- and
- anodizing the heat-treated aluminum foil.
2 more elements
An electrode foil for an electrolytic capacitor, comprising:
- particulate valve metal oxide formed on a roughened surface of an aluminum foil;
- and
- an amorphous dielectric oxide film layer covering the particulate valve metal oxide.
Dependencies are inferred from the claim text.