Double-Side Alumina (Al₂O₃) Coated PE Lithium-Ion Battery Separator Roll – 20 µm (1000 m × 60 mm)

Double-side ceramic-coated lithium-ion battery separator roll based on a polyethylene (PE) microporous substrate coated on both sides with alumina (Al₂O₃), designed to enhance thermal stability, mechanical strength, and safety in advanced Li-ion battery applications.

The separator combines the flexibility of a PE base film (16 µm) with dual Al₂O₃ ceramic layers (~2 µm per side), providing improved resistance to thermal shrinkage and better dimensional stability under elevated temperature conditions. It is suitable for lithium-ion pouch cells, cylindrical cells, and laboratory-scale battery development requiring reinforced separator performance.

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Specification
Base Material	Polyethylene (PE)
Coating	Double-side Al₂O₃ ceramic coating
Total Thickness	20 ± 2 µm
PE Substrate Thickness	16 µm
Al₂O₃ Coating Thickness	~2 µm per side
Width	60 mm
Roll Length	1000 m
Air Permeability (Gurley)	180 ± 60 s/100 ml
Porosity	44 ± 5 %
Area Density	13.0 ± 1.0 g/m²
Puncture Strength	≥ 600 g
Tensile Strength (MD)	≥ 1600 Kgf/cm²
Tensile Strength (TD)	≥ 1500 Kgf/cm²
Thermal Shrinkage (90 °C, 2 h)	≤ 2.5% (MD), ≤ 2.0% (TD)
Supply Format	Roll

Double-Side Alumina (Al₂O₃) Coated PE Lithium-Ion Battery Separator Roll – 20 µm (1000 m × 60 mm)

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Pricing available to approved customers

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