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

Single-side ceramic-coated lithium-ion battery separator roll based on a polyethylene (PE) microporous substrate coated with alumina (Al₂O₃), designed for enhanced thermal stability and improved safety in Li-ion battery applications.

The separator combines the flexibility of PE with the high-temperature resistance of an Al₂O₃ ceramic layer, improving dimensional stability and reducing thermal shrinkage risks. It is suitable for lithium-ion pouch cells, cylindrical cells, and laboratory-scale battery research requiring improved safety margins.

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Specification
Base Material	Polyethylene (PE)
Coating	Single-side Al₂O₃ ceramic coating
Total Thickness	~20 µm
PE Substrate Thickness	16 µm
Al₂O₃ Coating Thickness	~4 µm
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

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

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