3003 aluminum strip for power battery shell

New energy vehicles use batteries as power sources. Due to the constraints of battery weight and cruising range, as well as the high pressure of automobile energy conservation and emission reduction policies, in vehicle design and material application, the lightweight of the body has become the first issue to be considered by car companies.

Battery shell materials are high-purity aluminum alloy products formed through processes such as hot rolling, cold rolling, annealing, bending and straightening, and aluminum foil rolling, which are used to hold electrolytes and plate groups. This kind of shell is not only required to be acid-resistant, heat-resistant, and shock-resistant, but also to have high strength and thin shell walls. Mingtai Aluminum has launched 3003 aluminum strip for power battery shells. The 3003 aluminum alloy power battery aluminum shell (except the shell cover) can be stretched and formed at one time, and the bottom welding process can be omitted compared to the stainless steel shell.

The power battery shell is mainly made of 3003 aluminum alloy, which meets the H14 temper standard. The material strictly follows the chemical composition standard and mechanical performance standard. According to the design requirements of different power batteries, its thickness can be controlled between 0.8-3mm and its width can be controlled between 100-300mm. The 3003 aluminum strip for power battery shell launched by Mingtai Aluminum adopts hot-rolled deep-drawing process, and the thickness and width can be customized according to customer needs. Compared with the casting process, the aluminum strip made by hot rolling process has higher elongation and more stable performance. Therefore, in large-scale production, the yield rate of hot-rolled aluminum strip is also better.

3003 aluminum strip is used as battery shell material to meet the following requirements:

1. Good deep-drawing performance. The power battery shell is made by multiple stampings and has large deformation. The 3003 aluminum plate has good stamping performance and stable mechanical properties.
2. Sufficient strength and hardness. In order to effectively protect the internal battery structure, the battery shell material needs to have sufficient strength and hardness while ensuring high plasticity.
3. Good corrosion resistance and chemical stability. 3003 aluminum is a typical rust-proof aluminum that can adapt to different environments and has good corrosion resistance. As a battery shell material, it has the characteristics of long service life.

Mingtai Aluminum is a Chinese aluminum strip manufacturer and a listed company with strong comprehensive strength, especially in R&D and production capabilities. With the development of new energy vehicle industry gaining more and more attention, Mingtai Aluminum also follows the trend and invests a lot of energy in aluminum for automobiles, making unremitting efforts to produce high-quality products.