Pacific Automotive Network power battery shell materials are generally divided into aluminum shells and steel shells. Aluminum is a material that is easy to process and form, has high temperature corrosion resistance, good heat transfer and electrical conductivity. Aluminum alloy The aluminum power battery shell (except the shell cover) can be stretched and formed at one time. Compared with the stainless steel shell, the welding process on the bottom of the box can be omitted. During welding, there will be no decrease in weld quality due to burning of metal elements. etc. questions.

1. Explosion-proof performance The aluminum shell cover is specially equipped with an explosion-proof device. When the internal pressure of the battery core is too high, the explosion-proof device will automatically open to release the pressure to prevent explosion.

2. Anti-aging properties Among non-metallic materials, aluminum has excellent anti-aging properties. The anti-aging performance test shows that the maximum aging thickness on the surface is less than 50 μm in 20 years depending on the location of use and the climate zone. The minimum thickness of most cabinets is 5mm, which is less than 1% of the cabinet thickness, so it has no obvious impact on the mechanical properties of the cabinet.

3. Long service life. The use history in Europe can prove that its service life is at least 20 years. Simulated aging tests show that its service life is more than 20 years, far exceeding traditional materials such as metal.

4. Flame-retardant, smoke-free, and non-toxic. This material is a flame-retardant material with a flame-retardant grade of FV0 and a smoke level of 15 under high-temperature burning (smoke level 1 Level-100), the smoke is non-toxic, and the toxicity level is ZA1 (quasi-safety level one).

What is the material of the power battery casing? I will share it here today. Power lithium batteries are mainly used in the fields of power tools, electric bicycles, and electric vehicles. The structure of power batteries is similar to IT lithium batteries, but they have better sealing, corrosion resistance and explosion-proof properties. High requirements.

(Pictures/Text/Photos: Pacific Automotive Network Question and Answer Calling the Beast)