Automotive battery aluminium 3003 aluminium sheet

Automotive battery aluminium 3003 aluminium sheet

In the power battery system of new energy vehicles, the battery shell accounts for about 20-30% of the total weight of the system and is the main structural part of the battery. At present, many new energy vehicles use aluminium alloy frame and aluminium plate structure to reduce the weight of the vehicle. The main reason is that the aluminium alloy frame and aluminium plate structure can make the battery case structure design flexible, the process is more mature, and the weight reduction is obvious, can provide high rigidity and high strength, and the aluminium plate stamping parts are well sealed.

The 3003 aluminium alloy power battery case is mainly made of 3003 aluminium sheet, which has easy processing and forming, high temperature and corrosion resistance, good heat transfer and electrical conductivity. 3003 aluminium alloy power battery aluminum case (except for the case cover) can be formed in one stretch, which can eliminate the welding process at the bottom of the box compared to the stainless steel case. Using 3003 aluminium alloy for encapsulation, the encapsulation process is very important in the process of power battery production, because a good encapsulation process determines the safety and life of the power battery.

The main alloying element of 3003 aluminium sheet is manganese, which has the advantages of low density and soft material, making it easy to stretch and shape the aluminium case of the power cell as a whole. The density of aluminium alloy is much smaller than traditional stainless steel encapsulation material, which can realize the development of light weight of the car.