| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing aluminum electrode foil for an electrolytic capacitor, which is hardly influenced by reactant gas generated by electrolysis and can stably control a current density and has a large capacitance and can reduce the variation. SOLUTION: In the method of manufacturing the aluminum electrode foil for the electrolytic capacitor, comprising the steps of: performing etching by passing aluminum foil between a pair of electrode plates in electrolyte; arranging an electric shielding plate with a plurality of slit shape openings between the electrode plates facing the aluminum foil; and performing the etching while controlling a dc current flowing between the electric shielding plate and the aluminum foil, it is characterized in that the slit shape openings of the electric shielding plate are made to be a V shape spreading by an equal width in the end direction from one point of a width direction center section of the aluminum foil and in the upper direction of an etching bath and an angle of the V shape of the slit shape openings of the electric shielding plate is 60 degrees to 120 degrees. COPYRIGHT: (C)2008,JPO&INPIT
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