| abstract |
(57) [Summary] [Constitution] Si 100ppm or less, Fe 100ppm or less, Cu Aluminum foil for electrolytic capacitors, which contains 5 to 60 ppm, Ti 0.1 to 1 ppm and V 0.5 to 5 ppm, and which has a balance of 99.96% by weight or more of Al and unavoidable impurities and has a high bending strength after etching. B can be included as a selection component. [Effect] An excellent capacitance is obtained by etching treatment, especially AC etching, and bending strength after etching is high. |