Description
ATOMFAIR® WET-PROCESS PE SEPARATOR 7μm (MODEL: AF-PE7)RESEARCH GRADE MATERIAL – PRIMARY COMPONENT FOR ION TRANSMISSION
|
|||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||
|
TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official institutional quotations.
EMAIL: inquiry@atomfair.com
|
|||||||||||||||||||||||||||||||||||||||||
|
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
|
|||||||||||||||||||||||||||||||||||||||||
This separator must be stored in a sealed, dry, and ventilated environment at normal or low temperature to prevent moisture absorption and thermal degradation. It requires careful handling to avoid puncture, mechanical stress, and exposure to heat sources that could compromise its ion transmission function.
- Moisture Sensitivity: Store in the original sealed plastic bag to prevent moisture absorption, which can alter porosity and ion transport performance.
- Thermal Stability: Avoid exposure to temperatures exceeding 135°C to prevent melting, thermal shrinkage, and loss of dimensional integrity.
- Mechanical Fragility: Protect the separator from sharp objects, puncture forces, and compressive loads during transport and handling to maintain electrical isolation.
- Contamination Control: Keep away from dust, chemical vapors, and particulate contaminants to avoid electrochemical interference in battery applications.
- Fire Safety: Keep the separator away from ignition sources, open flames, and flammable materials to prevent combustion or heat-induced degradation.
This procedure describes the safe handling and storage steps for the separator to maintain its structural and functional integrity. Adherence to these steps minimizes risks of moisture damage, mechanical deformation, and contamination.
Required Equipment: Sealed plastic bag, Cushion pads
- Inspect Packaging
Inspect the sealed plastic bag and cushion pads for any visible damage or contamination upon receipt. - Store in Controlled Environment
Store the sealed separator in a dry, ventilated area at normal or low temperature, away from direct sunlight, moisture, and heat sources. - Avoid Contaminants
Keep the separator away from fire, flammable items, and chemical vapors that could cause combustion or electrochemical interference. - Protect During Use
Handle the separator with clean gloves and avoid touching the surface with bare hands to prevent oil or moisture contamination. - Prevent Mechanical Damage
Avoid exposing the separator to puncture forces, sharp edges, or severe collision and extrusion during handling and installation.
Does the 7 μm thickness of the Atomfair wet-process PE separator compromise puncture resistance compared to thicker commercial separators?
The 7 μm thickness does not significantly compromise puncture resistance; the separator exhibits a puncture strength of 339 g, which is competitive for its thickness class. For comparison, the 20 μm variant (AF-PE20) offers 722 g, but the 7 μm version provides an optimal balance for high-energy-density cells requiring minimal internal resistance.
Can the 7 μm wet-process PE separator be used in standard 18650 or pouch cell winding processes without tearing?
Yes, the separator is designed for compatibility with standard winding and stacking processes. Its longitudinal tensile strength of 221 kg/cm² and transverse strength of 180 kg/cm² provide adequate mechanical robustness for automated assembly at 60 mm width. The low transverse thermal shrinkage of 0.1% also minimizes wrinkling during cell drying.
What are the critical storage and handling requirements to prevent degradation of the 7 μm PE separator?
The separator must be stored sealed in a dry, ventilated environment at normal or low temperature, away from fire and heat sources. Due to its thinness (7 μm), it is especially susceptible to moisture absorption and mechanical damage; avoid exposure to sunlight, rain, and severe physical impact during transportation. The low melting temperature of 135°C also requires strict temperature control during cell assembly.
The Atomfair AF-PE7 wet-process PE separator at 7 μm thickness offers a balance of low air permeability for efficient ion transport and moderate thermal shrinkage, but its low melting point and thinness demand controlled handling and storage conditions for reliable research cell assembly.
Positive
- Ultra-thin 7μm for high energy density: At just 7 μm total thickness and 4.3 g/m² surface density, this separator minimizes dead volume in coin or pouch cells, enabling higher volumetric energy density and lower ionic resistance for laboratory battery research.
- Low air permeability enhances ion transport: With an air permeability of 155 seconds and 40% porosity, the separator supports efficient lithium-ion transmission, reducing internal cell resistance and supporting higher discharge rate testing in experimental setups.
Trade-offs
- Low melting temperature limits thermal safety: A melting temperature of 135°C restricts safe operating range and increases thermal runaway risk under abusive conditions; cells must be tested with temperature controls to avoid separator collapse.
- Requires careful handling and dry storage: The thin 7 μm film is sensitive to physical damage and environmental exposure; packaging mandates sealed, dry, ventilated storage away from heat sources, and transportation must avoid sunlight, rain, and impact.
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).
