In recent years, stainless steel battery casings have rapidly gained popularity in the renewable energy sector, becoming the preferred new choice for the lithium-ion encapsulation of batteries. Stainless steel offers significant advantages over traditional aluminium materials in terms of high resistance, corrosion and impact resistance, and significantly improves the safety of battery packs. In particular, under extreme conditions such as violent shocks or high temperatures, it effectively reduces the risks of short circuits, liquid leaks or even fires. With the tightening of global safety standards for electric vehicles, many manufacturers have started to use superferritic stainless steels for casings, making them a well-established trend in the sector.

Mature processing, controllable costs and the ecological characteristics of 100% recyclability make it fully compatible with the sustainable development needs of the energy sector. As nickel and solid state battery technologies progress, the pressure and tightness demands of casings are constantly growing, and stainless steel, with its higher performance, is set to grow even more.

The stainless steel shell, with its exceptional resistance to heat and corrosion, is perfectly suited to the stricter operating conditions of electric vehicles, while its very high structural resistance offers protection comparable to a shell, dramatically improving safety. Although the initial cost is slightly higher, the long duration and near absence of maintenance significantly reduce the overall life cycle costs, making it the ideal choice for battery encapsulation.

Our company has developed a complete range of high-performance stainless steel products to meet any specific requirements. The effectiveness of these solutions is demonstrated by concrete cases: the tesla 4680 steelshell batteries showed a 40% increase in drilling resistance tests, while the steel version of catl's qilin battery improved energy density by 15% through 2000 test cycles. With the increasing adoption of new technologies, stainless steel is moving from a premium option to a mainstream solution for the whole sector.

With the development of battery technologies towards greater energy security and density, stainless steel, thanks to its resistance, anti-corrosion and shock absorption capacity, has become the preferred material for casings, with rapidly growing demand. As a specialised supplier, we offer a full range of products, including very high strength superferritic steels, precision thin strips and special surface treatments. With advanced installations and rigorous quality controls, we ensure stable and reliable performance, as well as a reactive supply chain to support customers in the competitive renewable energy market. Whatever your needs, we can provide specialised technical support and tailor-made competitive solutions.