PE Battery Separator Base Film 5μm, 60 mm x 330 m
Product Overview
Wet-process polyethylene (PE) separator base film supplied as 5um PE 60mm wide 330m. The source specification records the dimensional and mechanical quality criteria listed below.
Product Details
| Product name | PE Battery Separator Base Film 5μm, 60 mm x 330 m |
| Source specification | 5um PE 60mm wide 330m |
| Process / coating side | Wet process; uncoated |
| Material | Polyethylene (PE) |
| Thickness | 5 μm nominal; source tolerance is listed below |
| Width | 60 mm |
| Roll length | 330 m |
| Appearance – bow | 1 m length, <=2 mm |
| Appearance – other | 1 m length; smooth surface; neatly wound; no wrinkles, dirt, or other visible defects |
| Slitting width | Visual inspection, 0.5 mm |
| Thickness test | Caliper, 5.0 ± 1.0 μm |
| Areal density | Micrometer, 3.5 ± 1.0 g/m² |
| Air permeability | 150 ± 50 sec/100 cc |
| Base-film porosity | 40 ± 3% |
| Puncture strength | >=250 gf |
Additional Information
Test methods are retained from the supplied source specification.
Important Note
Note: Slight variations may occur between different production lots of the battery separator. The performance indicators are guaranteed to comply with our product specifications.
Related Products
| Research Need | Related Product | Best For |
|---|---|---|
| Compare nearby specifications | PE Battery Separator Base Film 7μm, 60 mm x 330 m | Same PE base film family for direct specification comparison. |
| Review same-family format | PE Battery Separator Base Film 14μm, 60 mm x 330 m | Same PE base film family for direct specification comparison. |
| Check alternate thickness | PE Battery Separator Base Film 16μm, 60 mm x 330 m | Same PE base film family for direct specification comparison. |
|
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, well-ventilated environment at normal or low temperature to prevent moisture absorption and thermal degradation. Avoid exposure to fire, heat sources, direct sunlight, and mechanical puncture to maintain dimensional stability and electrochemical performance.
- Storage Environment: Store the separator in a sealed plastic bag with buffer pads in a normal or low temperature, dry, and well-ventilated area.
- Thermal Sensitivity: Keep the separator away from fire and heat sources to prevent melting, shrinkage, or other thermal damage above 135°C.
- Mechanical Integrity: Handle the separator carefully to avoid punctures, tears, or creasing that could compromise its 9 μm thickness and mechanical strength.
- Contamination Avoidance: Protect the separator from dust, oil, and other particulates to ensure porosity and air permeability remain within spec.
- Transport Precautions: During transportation, shield the separator from direct sunlight, rain, and fire baking to preserve its heat shrinkage and tensile properties.
Follow these steps to safely store and handle the separator to preserve its dimensions and electrochemical properties. Proper handling prevents damage and ensures compatibility with lithium-rich manganese-based batteries.
Required Equipment: Plastic sealed bag, Buffer pad, Dry, ventilated storage cabinet
- Inspect packaging
Inspect the plastic sealed bag and buffer pads for any punctures or tears before opening. - Transfer to storage
Transfer the unopened sealed bag to a dry, well-ventilated storage area at normal or low temperature. - Avoid thermal exposure
Keep the separator away from fire, heat sources, and direct sunlight to prevent shrinkage or melting. - Handle with care
Handle the separator gently to avoid mechanical puncture, creasing, or tearing during removal and use. - Seal after use
Reseal any unused portion in the original plastic bag with buffer pads immediately after use.
How does the 9μm thickness of the wet PE separator affect puncture strength and thermal shutdown performance for lithium-rich manganese-based batteries?
The 9μm thickness delivers a puncture strength of 410g, which is a trade-off against thicker wet PE separators like the 20μm version at 722g; however, this thinner profile still meets the mechanical demands of lithium-rich manganese-based cells while providing a melt temperature of 135°C for reliable thermal shutdown. The reduced thickness also lowers ionic resistance, improving rate capability without compromising shutdown integrity.
What specific separator properties enable compatibility with lithium-rich manganese-based battery chemistries?
This wet PE separator is optimized for lithium-rich manganese-based systems with a porosity of 38%, air permeability of 185 seconds, and low transverse heat shrinkage of 0.1%, which together accommodate the high operating voltage and significant volume changes characteristic of these cathodes. The 9μm base film and 5.7 g/m² areal density further balance electrolyte retention and mechanical stability under cycling.
What are the critical storage and handling requirements to prevent mechanical damage or degradation of the 9μm wet PE separator?
The separator must be stored sealed in plastic bags with buffer pads within a normal or low temperature, dry, and well‑ventilated environment. It must be kept away from fire and heat sources, and during transportation avoid exposure to sunlight, rain, or open flame to prevent physical damage and thermal degradation.
This 9μm wet-process PE separator offers a balanced combination of thinness, puncture resistance, and low transverse shrinkage for lithium-rich manganese-based batteries, but its low melting point and stringent storage requirements must be accounted for in battery design and handling protocols.
Positive
- High puncture strength at 9 μm: With a puncture strength of 410 g at only 9 μm total thickness, this separator provides robust mechanical integrity during coating, stacking, and winding operations, reducing the risk of short circuits.
- Ultra-low transverse heat shrinkage: Transverse heat shrinkage of only 0.1% ensures excellent dimensional stability under thermal processing conditions, minimizing electrode misalignment or edge curling during battery assembly.
Trade-offs
- Low melting temperature of 135 °C: The PE base film melts at 135 °C, which can trigger thermal shutdown or mechanical failure in high-temperature or fast-charging battery designs, demanding careful thermal management.
- Strict storage and handling conditions: The separator must be stored sealed in a dry, low-temperature, well-ventilated environment and kept away from heat sources, sunlight, and rain, adding logistical constraints for lab inventory management.
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).
