Cathode Foil-13μm Mill Finish Aluminum Foil

13μm Mill Finish Aluminum Foil is specially designed as a current collector for lithium-ion and sodium-ion batteries, the aluminum foil can be directly matched with NMC, NMA cathodes, and sodium-ion battery cathodes and anodes. It works as an excellent substrate for advanced surface treatments to meet performance criteria for next-generation batteries. Our precision slitting lines produce aluminum foil with precise, uniform widths of 200 mm to 1,700 mm to fulfill diverse customer demands.

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13μm Mill Finish Aluminum Foil is a standard current collector substrate, and be widely applied in lithium-ion batteries adopting LFP, NCM and NCA cathodes. The base foil supports subsequent advanced surface modification to lower surface resistance, improve conductivity, reinforce active material adhesion, optimize fast-charging and rate performance, and mitigate electrolyte corrosion for longer electrode lifespan.

Applicable battery	Lithium ion battery / Sodium ion battery
Alloy	AA1100, AA1060, AA1235D
Temper	H18
Aluminum Foil Thickness	8-15µm
Coating Thickness	3µm (single side/double sides)
Aluminum Foil Width	300-1550mm
Coating System	Aqueous slurry
Surface tension	≥56 dyn/cm
Total Surface density	38.4±1.5 g/㎡
Coating surface density	3.0±0.5 g/㎡
NMP resistance	Baked at 130 °C for 10 min. Wiping 200 times with NMP, coating remains intact without peeling