Description
Atomfair Single-sided Alumina-coated PE Substrate Battery Separator Roll
Product Overview
This high-performance separator roll features a single-sided Al2O3-coated PE composite structure, designed exclusively for lithium-ion batteries and available only in roll form. It combines the excellent mechanical toughness of polyethylene (PE) substrate with the high-temperature resistance of aluminum oxide coating, delivering precise dimensions, stable performance, and reliable support for lithium-ion battery production and R&D scenarios.
Core Specifications & Performance Parameters
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Parameter
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Technical Value
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|---|---|
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Material
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Polyethylene (PE) substrate + single-sided aluminum oxide (Al2O3) coating
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Total Thickness
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20±2um (PE substrate: 16um; Al2O3 coating: 4um)
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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
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16in * 8in * 8in (L*W*H)
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Core Functional Advantages
Dual-performance Composite Structure
The PE substrate provides superior mechanical strength (high puncture and tensile resistance) to withstand battery assembly stress, while the Al2O3 coating enhances high-temperature stability, reducing thermal shrinkage risks and preventing thermal runaway.
Efficient Ion Conduction & Safety Isolation
Optimized porosity and air permeability facilitate full electrolyte penetration and rapid lithium-ion migration, improving battery charge-discharge efficiency. The separator effectively isolates positive and negative electrodes, eliminating short-circuit risks caused by direct contact.
Enhanced Battery Durability
Low thermal shrinkage rate and robust structural stability maintain separator integrity during battery cycling, extending the cycle life of lithium-ion batteries and ensuring long-term operational reliability.
Application Scenarios
This separator roll is a premium dedicated component for lithium-ion batteries, ideal for the following scenarios:
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Mass production lines of consumer electronics batteries (smartphones, laptops, power banks)
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Electric vehicle (EV) and energy storage system (ESS) battery cell manufacturing
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High-performance lithium-ion battery R&D and pilot-scale production
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Custom battery projects requiring high safety and long cycle life
Quality Compliance
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Raw materials comply with ISO 10993 chemical inertness standards, ensuring no adverse reactions with lithium-ion battery electrolytes.
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Mechanical performance testing adheres to ASTM D882 (tensile strength) and ASTM D726 (puncture resistance) international protocols.
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Thermal shrinkage testing meets IEC 61960 battery component safety requirements, aligning with global lithium-ion battery industry standards.
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
