Patent ID: 6876541
Filing Date: 2005-04-05
Classification: B21B,C22C,C22F,H01G

Abstract:
1. An aluminum material for electrolytic capacitor electrodes, said aluminum material whose aluminum purity is 99.9% or more consisting of: Si: 2 to 50 ppm; Fe: 2 to 50 ppm; Cu: 15 to 150 ppm; Zn: 1 to 80 ppm; Pb: 0.1 to 3 ppm; at least one of Zr and V: 11 ppm or more, wherein a total content of said at least one of Zr and V is 11 to 100 ppm; and the balance being Al and impurities, wherein a content of B is controlled to be 2 ppm or less.