| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing an electrode foil for an electrolytic capacitor which has high bending strength even after etching and anodic oxidation are carried out. SOLUTION: Heat treatment of 150 to 390°C is performed for at least 30 minutes for an electrode foil for an electrolytic capacitor which is formed by forming a dielectric film in an etched aluminum foil surface by anodic oxidation. Since crystalline arrangement of the dielectric film is thereby homogenized, strain in crystal is reduced, thus providing flexibility to the dielectric film and increasing bending strength of the electrode foil. COPYRIGHT: (C)2007,JPO&INPIT
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