Battery aluminum foil stock is a raw material used in the manufacture of batteries, mainly made of pure aluminum or aluminum alloy made of thin sheets by cold rolling process, whereby the aluminum stock is gradually pressed into the required aluminum foil through multi-pass rolling and annealing process. According to the specific needs of the battery, the battery aluminum foil stock can be selected in different thicknesses, widths and hardness, and its excellent electrical conductivity, corrosion resistance and mechanical properties well meet the performance requirements of the battery.