Description
ATOMFAIR® DOUBLE-SIDED ALUMINA COATED PE BATTERY SEPARATOR ROLLRESEARCH & PRODUCTION 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: Atomfair LLC
Brand: ATOMFAIR®
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This separator roll is a composite film with precise dimensional tolerances that require controlled thermal exposure during use. The alumina coating provides thermal stability but is susceptible to shrinkage at elevated process temperatures.
- Thermal Exposure Constraint: Do not expose the separator to temperatures above 90°C for extended durations to prevent unacceptable shrinkage exceeding 2.5% in the machine direction.
- Mechanical Handling Precautions: Handle the roll with clean, non-abrasive tools to avoid puncturing or deforming the coated surface.
How does the double-sided alumina coating layer thickness impact the balance between mechanical integrity and ionic transport in this battery separator?
The 2μm alumina coating on each side of the 16μm PE substrate yields a puncture strength ≥600G and tensile strength MD≥1600/TD≥1500 kgf/cm², while maintaining an air permeability of 180±60 s/100ml and porosity of 44±5%, ensuring adequate electrolyte wetting and lithium-ion migration for high-rate performance.
What specific cell formats and electrolyte chemistries are compatible with this alumina-coated PE separator?
This separator is designed for lithium-ion batteries and is compatible with standard carbonate-based electrolytes due to ISO 10993 chemical inertness compliance. It is supplied only in roll form (60mm width, 1000m length) and can be cut to size for pouch, prismatic, or cylindrical cells, with mechanical properties supporting automated winding.
What are the recommended handling and storage conditions to maintain the integrity of this double-sided alumina coated PE separator roll?
Store the roll in a dry, clean environment at ambient temperature to prevent moisture absorption that could degrade the PE substrate. The alumina coating is chemically inert per ISO 10993, but avoid exposure to UV and sharp objects to preserve the puncture strength ≥600G. The packaging (16x8x8 inches) is designed for standard shipment, and the roll should be handled with clean gloves to avoid contamination.
The Atomfair double-sided Al2O3 coated PE separator offers balanced mechanical and thermal properties with precise dimensions, though its roll-only format and thermal shrinkage require careful handling during cell assembly.
Positive
- Symmetrical alumina coating: Double-sided Al2O3 coating on PE substrate provides high-temperature resistance and prevents short circuits by eliminating direct contact between electrodes, enhancing battery safety.
- Optimized pore structure: The air permeability of 180±60 s/100ml and 44±5% porosity ensure full electrolyte wetting, accelerating Li-ion transport and improving charge-discharge efficiency.
Trade-offs
- Roll-only form: The separator is supplied exclusively in 1000m rolls, necessitating slitting or cutting to desired dimensions before integration into cell assembly lines.
- Measurable thermal shrinkage: Thermal shrinkage of ≤2.5% MD and ≤2.0% TD at 90°C must be accounted for in cell drying processes to maintain separator alignment and electrode registration.
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). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
