Mill finish aluminum foil for battery

10μm Bare Aliminum Foil

10μm Bare Aliminum Foil is developed as a current collector for lithium-ion and sodium-ion batteries, our 8μm Uncoated Bright Aluminum Foil directly fits NMC, NCA cathodes, alongside cathodes and anodes in sodium-ion batteries. It is an ideal base material for advanced surface treatments to fulfill next-gen battery performance targets. Supported by precision slitting production lines, we provide foil widths between 200 mm and 1,700 mm with consistent dimensional accuracy for diverse customer needs.

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The 10μm Bare Aluminum Foil can be adopted as cathode current collector. It features primary compatibility with LFP, alongside good adaptability to NCM and NCA materials, catering to applications of long-distance electric vehicles and consumer 3C batteries. 

 

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

 

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Key Bnenefit of 10μm Bare Aluminum Foil

a. Lower Surface Resistance. Enhanced Conductivity Reducing surface resistance to achieve superior conductivity performance.

b. Enhanced Interfacial Adhesion. Improve bonding performance between active materials and current collector substrate.

c. Superior Rate & Fast-Charging Performance. Improve battery rate performance to support efficient fast charging.

d. Excellent Electrolyte Corrosion Resistance. Provides effective protection against electrolyte corrosion to prolong electrode lifespan.

e. Broad Cathode Material Compatibility. Mainly suited for LFP, and supports NCM & NCA materials.

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