Aluminium hardness foil for cell current collector

The invention provides an aluminium hardness foil for a cell current collector, and the aluminium hardness foil has certain intensity, is excellent in elongation, and low in resistance; the aluminium hardness foil is characterized by comprising the following elements: 1.4-1.7 mass % of Fe; 0.1-0.5 mass % of Cu; Si with percentage under 0.4mass%; resting content is formed by Al and inevitable foreign matters. The size of the subgrain is under 0.8 micron in the thickness direction, and under 45 micron in a rolling direction.