Product features:

1. Ordinary aluminum foil is made by mechanically rolling pure aluminum to a thickness of 10-30um, resulting in a relatively smooth surface. Therefore, the contact area between the active substance and the aluminum foil is small, and electronic conduction between the aluminum foil and the active substance may become a limiting factor during high rate discharge. Our frosted foil increases the contact area between LCO material and current collector, improves adhesion, stability, and reliability, and better overcomes poor contact and loss of connection caused by internal stress release and inconsistent expansion and contraction coefficients. Reduced polarization and contact resistance during the charging and discharging process, significantly improving the rate performance and cycle life of various batteries such as lithium-ion/sodium ion batteries.

2. Significantly improve the adhesion between foil and positive and negative electrode materials~Currently, it is the highest in China, reaching 36-45, higher than carbon coated aluminum foil and even higher than bare foil.

3. Significantly increasing the specific surface contact area, reducing impedance, significantly improving battery charging and discharging characteristics, increasing lithium and sodium storage capacity, and improving surface density and capacity.

4. The elongation and buffering properties of the foil material have increased from flat to three-dimensional, and it has a certain degree of resilience, which has improved the interface contact stability and cycle life.

5. In response to high-end demand, new processes and materials have been developed based on it, including carbon coated aluminum foil and then roughened, composite aluminum foil and carbon coated copper foil and then roughened, pole plate roughening, and pole plate blind holes.

Product Introduction:

Our self-developed roller coating equipment and process can perform ultra-thin safety coating treatment on frosted foil, which can effectively control oxidation and corrosion. It not only stabilizes the resistance, but also maintains the mechanical resistance and stability of the current collector in the event of sudden temperature rise, playing a role in corrosion prevention, flame retardancy, and preventing thermal runaway.