jinnianhui金年会官网

The battery box for the new energy vehicle is the carrier of the new energy vehicle power battery, which is generally installed in the lower part of the vehicle body, and is mainly used to protect the lithium battery from being damaged when it is impacted or squeezed by the outside world.

 The traditional battery box is made of steel plate, aluminum alloy and other materials. Then spray the surface. With the development of energy saving, environmental protection and light weight of automobiles, a variety of lightweight materials such as glass fiber reinforced composite materials, SMC sheet materials and carbon fiber reinforced composite materials have also appeared in battery housing materials. Steel casing. The steel battery pack shell is the original power battery pack shell material, which is generally welded by casting steel plates. High strength, high rigidity and heavy weight. The surface needs anti-corrosion treatment, so that it still has good anti-corrosion effect under long-term high temperature conditions. Aluminum alloy shell. The automobile power battery pack adopts aluminum alloy material, which has the characteristics of easy processability, good heat transfer and conductivity. The aluminum alloy shell (except the shell cover) can be stretched at one time. Compared with stainless steel, the box bottom welding process can be omitted. When welding, there will be no problems such as the deterioration of the quality of the cold wind due to the burning of metal elements.