Description
Atomfair Double-sided Alumina Coated PE Substrate Battery Separator Roll
Product Overview
Atomfair double-sided Alumina Coated PE substrate battery separator roll adopts a composite structure with symmetrical coating of Al2O3 on both sides of the PE substrate, featuring precise dimensions and balanced performance. It is only sold in roll form.
Core Specifications & Performance Parameters
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Specification Project
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Specific Parameters
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Product Name
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Atomfair Double-sided Alumina coated PE Substrate Battery Separator Roll
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Material
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Polyethylene (PE) substrate + double-sided alumina (Al2O3) coating
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Total Thickness
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20±2um (PE substrate: 16um; single-sided Al2O3 coating: 2um)
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Roll Size
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1000m (length) * 60mm (width)
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Air Permeability
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180±60s/100ml
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Porosity
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44±5%
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Surface Density
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13.0±1.0g/m²
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Puncture Strength
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≥600G
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Tensile Strength
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MD ≥1600kgf/cm²; TD ≥1500kgf/cm²
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Thermal Shrinkage (90℃, 2h drying)
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MD ≤2.5%; TD ≤2.0%
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Sales Form
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Roll-only
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Outer Packaging Size (L*W*H)
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16in * 8in * 8in
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Product Application
This product is a high-performance dedicated separator material for lithium-ion batteries. Relying on the excellent mechanical properties of the PE substrate and the high-temperature resistance and short-circuit prevention advantages of the double-sided Al2O3 coating, it plays a core role in lithium-ion batteries:
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Precisely separating the positive and negative electrodes, eliminating short-circuit risks from direct contact and ensuring battery safety.
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Optimized pore structure and air permeability enable full electrolyte penetration, accelerating lithium-ion migration and enhancing charge-discharge efficiency & rate performance.
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Outstanding puncture/tensile strength and low thermal shrinkage boost battery structural stability and extend cycle life.
Suitable for various lithium-ion battery production scenarios (consumer electronics, power batteries, etc.).
Quality Compliance
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Raw materials comply with ISO 10993 chemical inertness standards, no adverse reactions with Li-ion battery electrolytes.
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Mechanical testing adheres to ASTM D882 (tensile) and ASTM D726 (puncture) international protocols.
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Thermal shrinkage testing meets IEC 61960 battery component safety requirements.
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
