High formability and corrosion resistance are desired for the aluminum foil used for aluminum-plastic film of lithium-ion batteries.The mechanical properties and corrosion resistance of A14.5Fe alloys with different Sb content were investigated though scanning e-lectron microscope(SEM),tensile testing machine and electrochemical workstation.The re-sults show that alloy elongation increases with addition of Sb,and decreases with addition of excessive Sb.The elongation is 27.4％when 0.05wt.％Sb is added,which is 40.5％higher than that of the alloy without Sb(19.5％).The polarization curve shows that addi-tion of Sb increases self-corrosion potential,decrease self-corrosion current and improves cor-rosion resistance.
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