The aluminum casing of new energy batteries has been widely used in the new energy vehicle industry due to its various advantages. The main advantages of aluminum shells for new energy batteries are summarized as follows:
1. Lightweight
Low density: The density of aluminum is 2.70g/cm ³, which is only one-third of that of copper and iron. Therefore, aluminum shells can significantly reduce the weight of battery modules compared to steel shells. This is of great significance for improving the endurance of new energy vehicles and reducing energy consumption.
Lightweight: The size of the battery box has a significant impact on the overall quality of the battery module, and using aluminum alloy material to make the battery case is an inevitable choice to reduce weight.
2. Good processing performance
Easy to form: Aluminum alloy materials have good formability and can be formed in one stretch, eliminating the need for bottom welding processes and improving production efficiency.
Strong plasticity: The plasticity of aluminum shell batteries gives them greater advantages in the production process, and their good castability also provides a foundation for their wide application.
3. Excellent corrosion resistance
High temperature corrosion resistance: Aluminum alloy has good high-temperature corrosion resistance and can maintain stable performance in harsh environments.
Strong corrosion resistance: Through both hot and cold processing techniques, aluminum shell batteries have strong corrosion resistance, extending the service life of the battery.
4. Good heat transfer and conductivity
Good heat transfer performance: Power batteries generate heat when working for a long time, and aluminum shell batteries have good heat dissipation, which is conducive to maintaining the stable operation of the battery.
Good conductivity: Aluminum alloy materials have good conductivity, which helps to improve the overall performance of batteries.