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
| Parameter | Technical Value |
|---|---|
| Material | Polyethylene (PE) substrate + single-sided aluminum oxide (Al2O3) coating |
| Total Thickness | 20±2um (PE substrate: 16um; Al2O3 coating: 4um) |
| Roll Size | 1000m (length) * 60mm (width) |
| Air Permeability | 180±60s/100ml |
| Porosity | 44±5% |
| Surface Density | 13.0±1.0g/m? |
| Puncture Strength | ≥600G |
| Tensile Strength | MD ≥1600kgf/cm?; TD ≥1500kgf/cm? |
| Thermal Shrinkage (90?, 2h drying) | MD ≤2.5%; TD ≤2.0% |
| Sales Form | Roll-only |
| Outer Packaging Size | 16in * 8in * 8in (L*W*H) |
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:
- Mass production lines of consumer electronics batteries (smartphones, laptops, power banks)
- Electric vehicle (EV) and energy storage system (ESS) battery cell manufacturing
- High-performance lithium-ion battery R&D and pilot-scale production
- Custom battery projects requiring high safety and long cycle life
Quality Compliance
- Raw materials comply with ISO 10993 chemical inertness standards, ensuring no adverse reactions with lithium-ion battery electrolytes.
- Mechanical performance testing adheres to ASTM D882 (tensile strength) and ASTM D726 (puncture resistance) international protocols.
- 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.
