Description
ATOMFAIR® WET-PROCESS PE SEPARATOR 20UM (75MM × 10M)RESEARCH 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 wet-process PE separator must be stored in a sealed, dry, and well-ventilated environment away from heat sources and sunlight. Mechanical damage from collision or extrusion must be avoided during transport and handling.
- Storage Environment: Store the separator in a sealed container under normal or low temperature, dry conditions.
- Thermal Safety: Keep the separator away from fire, heat sources, and flammable materials to prevent degradation.
- Mechanical Protection: Handle the separator carefully to avoid severe collision, extrusion, or puncture during transport and storage.
Inspect and store the separator under controlled environmental conditions to maintain its integrity. Follow these steps to ensure safe handling and prevention of damage.
- Inspect Package
Inspect the separator package for any visible damage or contamination upon receipt. - Store in Controlled Environment
Store the sealed separator in a cool, dry location away from heat sources and direct sunlight. - Handle with Care
Use clean gloves when handling the separator to avoid contamination and physical damage.
How does the 41% porosity and 224S air permeability of the AF-PE20 separator affect electrolyte wetting and ionic conductivity in lithium-ion battery cells?
The 41% porosity provides sufficient pore volume for electrolyte uptake, while the 224S Gurley value indicates moderate resistance to gas flow, balancing wetting speed with mechanical integrity. The 20 μm thickness further supports low ionic resistance, making this separator suitable for standard liquid electrolyte systems.
Can the AF-PE20 separator provide thermal shutdown protection in lithium-ion batteries?
Yes, with a melting temperature of 135°C, the PE base film will soften and close pores at elevated temperatures, providing a shutdown mechanism to prevent thermal runaway. This is a standard safety feature of wet-process PE separators used in commercial lithium-ion cells.
What are the recommended storage conditions to maintain the AF-PE20 separator's mechanical and thermal properties?
The AF-PE20 should be stored sealed in a normal or low temperature, dry, and well-ventilated environment, away from fire and heat sources. Avoid exposure to sunlight, rain, and severe collision during transport to prevent compromising the 20 μm thickness uniformity and shrinkage values (MD 1.4%, TD 0.1%).
The Atomfair Wet-process PE Separator 20μm offers a balanced combination of mechanical strength and dimensional stability for research battery assembly, though its low melting temperature and storage sensitivity must be considered for high-temperature or humid environments.
Positive
- High puncture strength for mechanical integrity: With a puncture strength of 722 g, this separator provides robust resistance to dendrite penetration and handling stresses during lab assembly.
- Low transverse thermal shrinkage for dimensional stability: Transverse thermal shrinkage of only 0.1% ensures minimal dimensional change during drying or moderate thermal exposure, reducing short-circuit risk.
Trade-offs
- Limited thermal tolerance due to low melting point: The PE base film melts at 135 °C, restricting safe operating temperatures and requiring careful thermal management in cell assembly or testing.
- Requires controlled storage and handling conditions: The product must be stored sealed in dry, ventilated conditions away from heat and handled with care to avoid mechanical damage or moisture uptake.
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).
