| abstract |
The issue of the present invention is to provide with good coating and the manufacturing method of the aluminium sheet high with the adaptation of active material and aluminium sheet.Have in the aluminium sheet for 2 or more the through holes that thickness direction penetrates through, the average open diameter of through hole is 0.1 μm more than and less than 100 μm, the aluminium sheet has the through hole A of following shapes, through hole A, which has, reaches the shape of maximum diameter Ra in inside, and maximum diameter Ra and most path Rb meet 1 > Rb/Ra≤0.1. |