Single-Side Coated Alumina Ceramic on PE Substrate as Battery Separator (1000 m L × 60 mm W × 20 um T) can be used as an excellent Li ion battery separator. 

Specifications

• Material: Single-Side Coated Al2O3 on Polyethylene (PE) Substrate
  
• Thickness:                   ~20 um (PE substrate:16 um, Al2O3 coating thickness is 4 um)
• Width :                         60 mm
• Air Permeability:            180±60 s/100ml
• Porosity:                     44 ± 5 %
• Area Density:             13.0±1.0 g/m2
• Puncture Strength :    ≥600 G
• Tensile Strength:        ≥ 1600 Kgf/cm2 (MD);   ≥ 1500 Kgf/cm2 (TD)
• Thermal Shrinkage:    ≤2.5% (MD);   ≤2.0% (TD). Drying at 90℃ for 2 h. 
• Sold in roll only
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