Description
ATOMFAIR® DRY-PROCESS PP SEPARATOR 25μm (MODEL: AFSPPP25U60mm10m)RESEARCH GRADE MATERIAL – PRIMARY COMPONENT FOR ION TRANSMISSION
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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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Store the PP separator sealed in a dry, well-ventilated environment at normal or low temperature. Keep away from fire, heat sources, and flammable materials, and avoid exposure to sunlight, rain, or severe mechanical stress.
- Environmental Storage Requirement: Seal the separator in its original packaging and store in a dry, well-ventilated area at normal or low temperature to prevent moisture absorption and thermal degradation.
- Heat and Fire Avoidance: Keep the separator away from fire, heat sources, and flammable or explosive materials to prevent melting or combustion.
- Light and Weather Protection: Avoid exposure to direct sunlight, rain, or fire baking during transportation and storage to maintain structural integrity.
- Mechanical Handling Precaution: Handle the separator with care and avoid severe collision or extrusion during transport and use to prevent physical damage and performance loss.
Follow these steps to ensure the integrity and performance of the PP separator during storage and handling. Proper storage prevents thermal shrinkage, mechanical damage, and contamination.
Required Equipment:
- Inspect Packaging
Inspect the sealed packaging for any damage before opening to confirm the separator has not been compromised. - Store in Controlled Environment
Store the separator in a sealed bag in a dry, well-ventilated environment at normal or low temperature to avoid moisture and thermal effects. - Avoid Hazardous Exposure
Avoid exposing the separator to fire, heat sources, sunlight, or rain to prevent thermal shrinkage or material degradation. - Handle with Care
Handle the separator with care to prevent severe collision or extrusion during transportation and use, ensuring the film remains intact.
How does the 25 μm dry-process PP separator's tensile strength compare to thinner variants from the same series, and what is the trade-off with air permeability?
The 25 μm AF-PP25 separator delivers a longitudinal tensile strength of 172 kg/cm³ and transverse of 20 kg/cm³, exceeding the 16 μm variant's 140 and 17 kg/cm³ respectively, while also providing higher puncture strength (429 g versus 380 g). However, air permeability increases to 349 S from 210 S, indicating reduced ionic conductivity that may limit rate capability in high-power cells.
What are the thermal shrinkage characteristics of the Atomfair dry-process PP separator, and how do they affect cell assembly?
The separator exhibits longitudinal (MD) thermal shrinkage of 1.8% and transverse (TD) of 0.1% as specified. This strong anisotropy requires precise alignment during electrode stacking or winding to avoid internal short circuits, particularly in large-format or multi-layer cells where MD mismatch can cause wrinkling or electrode exposure.
What storage and handling conditions are required to maintain the integrity of the Atomfair dry-process PP separator?
The separator must be stored sealed in a normal or low temperature, dry, well-ventilated environment, away from fire, heat sources, and flammable or explosive materials. During transport, avoid direct sunlight, rain, severe collision, and extrusion to prevent physical damage or environmental degradation that could compromise the separator's isolation function.
This 25 μm dry-process PP separator offers high longitudinal tensile strength (172 kg/cm³) and low transverse thermal shrinkage (0.1%), making it suitable for battery research cells that require mechanical robustness and dimensional stability. However, its polypropylene base film demands carefully controlled storage and handling to prevent moisture, heat, and physical damage.
Positive
- High longitudinal tensile strength: With a longitudinal tensile strength of 172 kg/cm³, the separator provides robust mechanical integrity during cell assembly and operation, reducing the risk of tear or deformation.
- Low transverse thermal shrinkage: Transverse thermal shrinkage is only 0.1%, ensuring excellent dimensional stability in the width direction under elevated temperatures, which helps maintain electrode isolation.
Trade-offs
- Controlled storage environment required: The separator must be stored sealed in a normal or low temperature, dry, well-ventilated area away from fire and heat sources, necessitating dedicated lab storage conditions.
- Fragile during transport and handling: Exposure to sunlight, rain, severe collision, or extrusion can degrade performance; careful handling and protection are mandatory to avoid mechanical damage.
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).
