15UM ALUMINA + LATP DOUBLE-LAYER COATED PE SEPARATOR ROLLRESEARCH GRADE MATERIAL
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TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official institutional quotations.
EMAIL: inquiry@atomfair.com
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Manufacturer Partner | Research Logistics
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This separator roll must be stored in a dry, temperature-controlled environment to prevent moisture absorption and thermal degradation. The coating layers are susceptible to delamination under excessive mechanical stress or prolonged exposure to temperatures above 130°C.
- Thermal Constraint: Exposing the separator to temperatures exceeding 130°C may cause irreversible dimensional changes and loss of ion conductivity.
- Mechanical Stress Limit: Puncture forces above 450 gf or tensile stresses beyond the specified MD/TD values can fracture the coating layers and compromise battery safety.
- Electrolyte Compatibility: Only electrolytes that meet ISO 10993 chemical inertness standards should be used to avoid adverse reactions with the separator materials.
- Lamination Process: Automatic laminators must be calibrated to apply uniform pressure without distorting the separator's multilayer coating structure.
How does the 15±2 µm thickness with a 9 µm PE substrate and 6 µm single-side coating (Al₂O₃ + LATP) affect mechanical robustness and ionic conduction compared to double-side coated separators?
The separator achieves a puncture strength ≥450 gf and tensile strength MD ≥1800 kgf/cm², TD ≥1700 kgf/cm², attributed to the robust 9 µm PE substrate and 3 µm Al₂O₃ layer. The single-side coating leaves one PE surface uncoated, which reduces overall ionic path resistance but may create anisotropic conduction; the 3 µm LATP layer provides efficient lithium-ion transport. Thermal shrinkage at 130°C is MD ≤2% and TD ≤1%, demonstrating that the coating does not compromise high-temperature dimensional stability.
What specific automatic lamination equipment and cell formats are compatible with this 60 mm wide, 100 m roll separator?
The 60±0.5 mm width and roll format are designed for equipment such as the MSK-111A-ES laminator (handling 110mm×100mm cells), enabling continuous feeding for pouch and prismatic battery assembly. The separator's 15±2 µm thickness and flexibility allow it to pass through roller systems without tearing, but the single-side coating requires orientation: the coated side should face the electrode with the higher interfacial resistance to avoid short circuits. The 100 m length supports pilot-scale R&D without frequent roll changes.
What handling precautions are critical to preserve the integrity of the LATP ceramic coating and PE substrate during cell assembly?
The 3 µm LATP coating is ceramic and can crack under sharp bending or creasing; use the roll with gentle tension and avoid folding. Puncture strength ≥450 gf indicates good resistance to particulate damage, but the substrate shrinks ≤2% MD at 130°C, so process temperatures must stay below this threshold. Store the roll in its original 16in×8in×8in packaging under clean, dry conditions to prevent contamination and maintain the 44±5% porosity needed for consistent electrolyte wetting.
This single-sided dual-layer Al2O3/LATP coated PE separator provides a flexible solid electrolyte with enhanced safety and conductivity, but requires careful handling for roll format and single-side usage.
Positive
- Synergistic Dual-Layer Coating: The combination of Al2O3 for high-temperature stability and LATP for efficient lithium-ion conduction achieves an optimal balance of battery safety and electrochemical performance.
- Outstanding Mechanical Strength: With puncture strength ≥450gf and balanced MD/TD tensile strength, the separator withstands cell assembly stress without structural damage, ensuring consistent performance.
Trade-offs
- Roll-Only Sales Format: Exclusively supplied in 100m rolls, requiring end-users to cut to size for individual cell preparation, which may introduce dimensional variability and material waste in small-scale R&D work.
- Single-Sided Coating: Only one side of the PE substrate receives the Al2O3+LATP coating, potentially limiting application in symmetric cell designs where both sides require ionic conduction.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
