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ATOMFAIR® wet process PE separator rolls in white color, wound on brown cores and stacked on a white background for battery research.

ATOMFAIR® Wet PE Battery Separator 7-20μm

$88.00

Institutional Procurement & Supply Compliance: As a verified US supplier, Atomfair accepts formal institutional Purchase Orders (POs), contract billing schedules, and custom procurement loops for university and national laboratories, and corporate R&D departments globally.

Buy PE separator film price deals for lithium-ion battery separator roll R&D. Wet PE separator 7-20μm 60-75mm width 10-100m rolls. Contact inquiry@atomfair.com.

SKU: AFMSKVPW531
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Description

ATOMFAIR® WET PE BATTERY SEPARATOR 7-20ΜM

RESEARCH GRADE BATTERY SEPARATOR

Product Overview
The ATOMFAIR® Wet PE Battery Separator is a premium research-grade polyethylene separator engineered for lithium-ion and sodium-ion battery R&D. Featuring a wet-process microporous structure with exceptional uniformity, this separator delivers superior ionic transport, reliable thermal shutdown at 135°C, and excellent mechanical strength for consistent coin-cell and pouch-cell assembly. Available in thicknesses from 7μm to 20μm with standard 60mm width and 75mm width options, the product supports diverse battery research applications from high-energy-density thin cells to robust safety-critical designs. The optimized pore architecture ensures rapid electrolyte wetting and stable ion conduction, while the PE material provides inherent low-temperature shutdown capability for enhanced battery safety. With roll lengths from 10 meters to 100 meters, the ATOMFAIR® wet PE separator provides flexible material quantities for both small-scale laboratory testing and extended research programs. Competitive PE separator film price points are available for both academic and industrial R&D procurement.

Technical Specifications

PARAMETER DETAILS
1. Core Product Identification
Product Model Wet PE Battery Separator
Process Type Wet-process PE (Polyethylene)
Application Lithium-ion / Sodium-ion battery separator
Melting Point 135°C (low-temperature shutdown)
2. Thickness & Width Specifications
7μm × 60mm × 10m 7μm thickness · 60mm width · 10m roll length
9μm × 60mm × 10m 9μm thickness · 60mm width · 10m roll length
12μm × 60mm × 10m 12μm thickness · 60mm width · 10m roll length
14μm × 60mm × 10m 14μm thickness · 60mm width · 10m roll length
16μm × 60mm × 10m 16μm thickness · 60mm width · 10m roll length
20μm × 60mm × 10m 20μm thickness · 60mm width · 10m roll length
3. Extra-Width & Bulk Length Options (20μm)
20μm × 75mm × 10m 20μm thickness · 75mm width · 10m roll length
20μm × 75mm × 20m 20μm thickness · 75mm width · 20m roll length
20μm × 75mm × 100m 20μm thickness · 75mm width · 100m roll length (bulk research quantity)
4. Typical Performance Properties (Wet PE)
Porosity 38% – 41% (uniform pore distribution)
Gurley Value Range 155 – 224 seconds (thickness dependent)
MD Thermal Shrinkage 0.9% – 1.5% (depending on thickness)
TD Thermal Shrinkage ≤ 0.1%
Puncture Strength 339 – 722g (thickness dependent)
Tensile Strength (MD) 192 – 221 kg/cm²
Tensile Strength (TD) 156 – 180 kg/cm²
Manufacturing Standards Processed under strict ISO 9001 / Battery-grade compliance conditions
Alternative Options Explore our related separator catalog or custom dimensions. For urgent technical custom requests or bulk PE separator film price inquiries, please contact our support team.

Key Features & Advantages
  • Superior Uniform Microstructure: Wet-process PE separator delivers exceptional pore size distribution uniformity, ensuring consistent ionic transport and reliable electrochemical performance across battery experiments.
  • Low-Temperature Thermal Shutdown: 135°C melting point provides rapid shutdown capability during thermal runaway events, enhancing battery safety in consumer and power applications.
  • Comprehensive Thickness Selection: Available in 6 standard thicknesses from 7μm to 20μm, supporting diverse research requirements from high-energy-density to high-safety battery designs.
  • Flexible Width & Length Options: Standard 60mm and 75mm widths with roll lengths from 10m to 100m accommodate both small-scale testing and extended research programs.
  • Research-Grade Quality Assurance: Rigorous quality control across thickness, porosity, Gurley value, shrinkage, tensile strength, and puncture resistance ensures batch-to-batch consistency for reproducible battery research.

APPLICATION SCOPE: Lithium-ion battery R&D, sodium-ion battery testing, coin-cell (CR2032, CR2025) assembly, pouch-cell prototyping, high-energy-density battery development, high-rate fast-charging research, thermal runaway prevention studies, electrolyte wettability optimization, and academic research on advanced battery separators.
PACKAGING: Anti-static protective packaging with moisture-barrier protection. Separator rolls are wound on core tubes with edge protection to prevent mechanical damage. Vacuum-sealed packaging for moisture-sensitive applications. Custom packaging available for bulk research quantities.
IMPORTANT NOTICE: Wet PE separator is sensitive to mechanical stress, moisture, and high-temperature exposure. Handle with clean gloves and avoid excessive bending, creasing, or sharp-edge contact during cutting and stacking operations. Store in a cool, dry, ventilated environment away from direct sunlight, ignition sources, and heat sources. Protect from rain and moisture during transportation. Prior to cell assembly, vacuum-drying at 60-80°C for 4-8 hours is recommended to remove residual moisture and ensure optimal electrolyte wetting. For ultra-thin grades (≤ 9μm), exercise additional care during handling to prevent wrinkling or tearing. When pairing with electrolytes, ensure compatibility with PE separator chemistry — avoid aromatic hydrocarbons and aggressive solvents that may degrade PE. For optimal performance, match separator thickness with electrode design and application requirements. Always check separator integrity for any physical damage before cell assembly. Avoid exposure to temperatures exceeding 135°C to prevent melting and structural degradation.
TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official institutional quotations.
EMAIL: inquiry@atomfair.com
Manufacturer: Atomfair LLC
Brand: ATOMFair

Store sealed in a dry, well-ventilated environment below 135°C and away from fire or heat sources. Material integrity is compromised by excessive tensile load, puncture, or exposure to moisture.

  • Thermal Degradation Risk: The separator undergoes longitudinal shrinkage of 1.2% and transverse shrinkage of 0.1% at elevated temperatures, with complete melting at 135°C.
  • Moisture Sensitivity: Humid storage conditions can alter the porous structure and degrade electrolyte wetting performance.
  • Mechanical Damage Risk: Puncture or tensile overload during handling can create defects that lead to internal short circuits in the assembled cell.
  • Fire Hazard Consideration: Polyethylene is flammable; maintain separation from open flames, sparks, and ignition sources.

How does the 39% porosity and 224s air permeability of the 16μm wet-process PE separator affect its ionic conductivity versus mechanical integrity in lithium-ion battery R&D?

The 39% porosity and 224s air permeability of the AF-PE16 separator provide a balanced trade-off between ionic conductivity and mechanical integrity for R&D lithium-ion cells. This porosity level, combined with a puncture strength of 535g and tensile strengths of 192 kg/cm³ MD and 156 kg/cm³ TD, offers sufficient electrolyte retention and wetting while maintaining structural safety during assembly and cycling.

Can the wet-process PE 16μm separator be used with high-nickel NMC cathodes or silicon anodes that require high-temperature stability?

The AF-PE16 separator has a melting temperature of 135°C, which limits compatibility with high-temperature electrode processing or operation above that threshold. Its longitudinal thermal shrinkage is 1.2% and transverse shrinkage is 0.1%, indicating good dimensional stability at moderate temperatures, but it is not recommended for cells designed for operating above 135°C or requiring PP's higher melt integrity at 167°C.

What are the required storage and handling conditions to prevent contamination or degradation of the 16μm wet-process PE separator before use?

Store the separator sealed in a dry, well-ventilated environment at normal or low temperature, away from fire, heat sources, and flammable materials. During transportation, avoid sunlight, rain, severe collision, and extrusion to prevent physical damage and maintain the 60mm width integrity and 16μm thickness uniformity.

This 16 μm wet-process PE separator from Atomfair offers a balanced combination of mechanical strength (535 g puncture) and thermal stability (0.1% TD shrinkage) suitable for R&D battery fabrication, though its PE construction limits upper temperature exposure to 135°C and moderate porosity (39%) may constrain high-rate ionic transport.

Positive

  • High puncture strength: Puncture strength of 535 g provides robust mechanical integrity against electrode particle penetration, critical for preventing internal short circuits in lab-scale battery assemblies.
  • Low transverse thermal shrinkage: Transverse thermal shrinkage of only 0.1% TD ensures dimensional stability across the separator width during thermal excursions, improving cell safety and consistency.

Trade-offs

  • Low melting temperature limit: Melting temperature of 135°C for the PE base film imposes a strict upper thermal operating limit; the separator loses structural integrity above this temperature, requiring careful thermal management during cell drying or battery testing.
  • Moderate porosity may limit rate: Air permeability of 224 S combined with 39% porosity indicates moderate ionic resistance; for high-rate or thick-electrode experiments, this separator may contribute to concentration polarization effects.

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).

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