ANODIZING SOLUTION IN HIGH VOLTAGE OF ALUMINUM FOIL COATED WITH METAL OXIDE OF ELECTROLYTIC CAPACITOR AND METHOD OF MANUFACTURING ALUMINIUM FOIL FOR ELECTROLYTIC CAPACITOR

摘要

A high-voltage anodizing solution for an aluminum foil coated with a metal oxide and an aluminum foil for an electrolytic capacitor using the same, wherein the high-voltage anodizing solution comprises an aqueous solution of boric acid containing 100 g boric acid per 1 L of water, , And propylene glycol, wherein propylene glycol is contained in an amount of 10% by volume to 30% by volume based on the total volume.