Which manufacturer of 1235 aluminum foil for battery foil is good?

With the rapid development of the new energy industry, battery foil is a key material for lithium batteries, and its performance directly determines the energy density and cycle life of the battery. 1235 aluminum alloy has become the preferred material for high-end battery foil due to its excellent conductivity, ductility and corrosion resistance. Faced with many manufacturers in the market, how to choose a partner with both technical strength and stable quality? With more than 20 years of aluminum processing experience, Mingtai Aluminum stands out with professional solutions.
1235 battery foil specification analysis
High-quality battery foil needs to meet high-precision and ultra-thin requirements. The 1235 battery foil produced by Mingtai Aluminum covers a thickness range of 8-20μm, a width of up to 1580mm, a tensile strength of ≥285MPa, and an elongation of ≥1.5%. The product has good surface wettability and low burr rate of the pole piece, which is suitable for power, energy storage and consumer electronic battery needs. Through customized rolling or slitting services, it can flexibly match the customer’s production line process.

The core technological advantages of Mingtai Aluminum
Using high-purity 1235 aluminum alloy ingots, through continuous casting and rolling process and precision cold rolling technology, ensure that the aluminum foil has uniform grains and a pinhole rate lower than the industry average. The unique surface treatment process improves the adhesion between the aluminum foil and the active material and extends the battery cycle life. In addition, the company is equipped with a CNAS laboratory to achieve full quality traceability from raw materials to finished products, and the product consistency has reached the international leading level.
Four reasons to choose Mingtai
As an A-share listed company in the aluminum foil industry, Mingtai Aluminum has an annual production capacity of over 200,000 tons, equipped with German imported rolling mills and intelligent production lines, and a delivery cycle as short as 7 days. The products have passed IATF16949, ROHS and other certifications, serving leading customers such as CATL and BYD. Relying on independent R&D teams and industry-university-research cooperation, we continue to break through 5μm ultra-thin battery foil technology and provide customers with full-cycle services from material research and development to application support.