What is the aluminum shell of battery

Battery aluminum shell material is generally aluminum manganese alloy. It contains the main alloy components are Mn, Cu, Mg, Si, Fe. The main role of these components is: Cu and Mg to improve the strength and hardness, especially can make aluminum alloy has the characteristics of aging hardening, so that through treatment and significantly strengthened; Mn mainly improves corrosion resistance; Si enhances heat treatment strengthening effect of mg-containing aluminum alloy; Fe can improve high temperature strength. The influence of alloy composition on the battery casing is also different. Increasing the content of Cu and Mg will improve the strength and hardness of the battery shell, resist the swelling of the battery, and further affect the performance of the battery. Lithium ion battery is the power source of mobile communication terminal equipment, and the aluminum rectangular shell is its key component. Its production technology is divided into two kinds: extrusion technology and drawing technology.