| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an aluminum foil for a power storage device connector in which a through-hole can be easily formed by etching and stability with respect to fluorine is improved. <P>SOLUTION: An aluminum foil for a power storage device collector has a composition where Ni is contained for 20 to 300 ppm in mass% and the remaining part is comprised of Al in 99% or more and inevitable impurities, and has a thickness of less than 50 μm. In the aluminum foil for power storage device collector, a through-hole is easily formed by etching by producing an Al-Ni sludge in a base, and stability with respect to fluorine is improved by making the concentration of Al 99% or more. It is preferable for the aluminum foil that a ratio of crystal grains through a cross section in a thickness direction is 10% or more and that the through-hole having a diameter of 0.5 to 500 μm is present in an area ratio of 5 to 50%. <P>COPYRIGHT: (C)2012,JPO&INPIT |
