What metal is the battery case?

With the rapid development of the power new energy automobile industry, it has also driven the development of the power lithium battery industry. Due to this social phenomenon, the requirements for battery housing materials are getting higher and higher. So what metal is the battery case? Subcontinent battery case experts will share with you: what metal is the battery case. As far as we know, the battery case is currently the best-selling aluminum case on the market, and aluminum is also a metal type. Aluminum alloy has low density, but relatively high strength, close to or exceeds high-quality steel, and good plasticity. The possible process is divided into various images. It has excellent electrical conductivity, thermal conductivity and corrosion resistance. It is widely used in the industry, and the number of uses is second only to Steel. There is also a stainless steel rigid casing, and there are more battery casings made of this material. Stainless steel is stainless steel, acid-resistant steel, air, steam, water and other weakly corrosive media, or stainless steel is called stainless steel; and steel that is resistant to chemical corrosion media (acid, alkali, salt and other chemical etching) is called acid-resistant steel. The alloy material structure of the lithium-ion battery casing has significant safety performance, which can be expressed by the material thickness and expansion coefficient. Lithium-ion batteries of the same capacity are lighter than steel because aluminum can be made thinner. According to the working mechanism of lithium-ion batteries, lithium ions are not inserted during charging, and the volume of the positive electrode increases. During the discharge process, lithium ions are inserted from the positive electrode and expanded from the negative electrode. It will cause the solid to expand, and the coefficient of expansion can be reduced by proper alloy formulation. After reading the above content, we can conclude that the production of two metals, stainless steel and aluminum alloy, is more common for battery shells. But it does not rule out that the battery casing is made of other materials. If you have any requirements for the battery case, please consult the battery case experts in the Asian continent. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the characteristics of the power lithium battery cover?