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
| Specification Project | Specific Parameters |
|---|---|
| Product Name | Atomfair Double-sided Alumina coated PE Substrate Battery Separator Roll |
| Material | Polyethylene (PE) substrate + double-sided alumina (Al2O3) coating |
| Total Thickness | 20±2um (PE substrate: 16um; single-sided Al2O3 coating: 2um) |
| 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 (L*W*H) | 16in * 8in * 8in |
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:
- Precisely separating the positive and negative electrodes, eliminating short-circuit risks from direct contact and ensuring battery safety.
- Optimized pore structure and air permeability enable full electrolyte penetration, accelerating lithium-ion migration and enhancing charge-discharge efficiency & rate performance.
- 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
- Raw materials comply with ISO 10993 chemical inertness standards, no adverse reactions with Li-ion battery electrolytes.
- Mechanical testing adheres to ASTM D882 (tensile) and ASTM D726 (puncture) international protocols.
- 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.
