High purity battery aluminum foil

lithium Battery Material -13μm Ultra Clean Aluminum Foil

The 13μm Ultra Clean Aluminum Foil is tailored for battery use, which is acid-cleaned to remove oil and impurities during production and remains uncoated. It carries stricter specifications for thickness, strength and surface purity than regular aluminum foil. Manufacturers produce it to realize thin gauges, high strength, perfect Dyna performance and flawless surfaces.

 

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The 13μm Ultra Clean Aluminum Foil adopts an acid washing procedure in production to eliminate residual oil and surface contaminants, and it remains uncoated with barrier layers. Its production tolerances for thickness, mechanical strength and surface purity are far stricter than those of ordinary aluminum foil. Manufacturing standards pursue minimal thickness, maximum tensile strength, optimized Dyna performance and ultra-pristine surface condition. 

 

Applicable battery

LiCoO₂ cathodes | NCM / NCA cathode materials | EVand 3C batteries requiring high energy density

Alloy

AA1100, AA1060, AA1235D

Temper

H18

Aluminum Foil Thickness

8- 20 µm

Aluminum Foil Width

200-1700mm

Surface tension

≥60dyn/cm

Tensile strength

≥230 MPa

Elongation

≥2.5%

 

 

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Key Bnenefit of 13μm Ultra Clean Aluminum Foil

a. Low Resistance Performance. Adopting a leak-proof coating process to achieve low resistance and high-efficiency electron transfer.

b. Higher Purity. Precision cleaning eliminates oils and impurities to enhance material adhesion.

     c. Thinning and Weight Reduction. Traditional cathode aluminum foil thickness 12–16 μm. 13 μm is a relative thin weight and could realizes high energy density, especially applicable to long-distance electric vehicles and 3C batteries (mobile phones, laptops).

 

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