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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 Separator 20μm 75mm x 10m for Li-rich Mn

$229.00

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.

Wet-process PE separator, 14μm thick, 60mm wide, 20m length, specially designed for lithium-rich manganese batteries. Melting point 135°C. In stock.

SKU: AFMSOZYA095
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Description

ATOMFAIR® WET PE SEPARATOR 20ΜM 75MM X 10M

RESEARCH GRADE BATTERY SEPARATOR

Product Overview
TheATOMFAIR® 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 20μm separator delivers superior ionic transport with 41% porosity and 224 S Gurley value, while providing maximum mechanical protection with exceptional 722g puncture strength and 196/165 kg/cm² tensile strength. The PE material provides inherent thermal shutdown capability at 135°C, enhancing battery safety during thermal runaway events. With 75mm width and 10-meter roll length, this product is ideal for larger-format laboratory and pilot-scale battery assembly. Exceptional dimensional stability (TD shrinkage ≤ 0.1%, MD shrinkage 1.4%) ensures reliable performance at elevated temperatures. Plastic-sealed bag packaging with cushion padding provides secure protection for laboratory handling and storage. 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
Specification Code KG-PE20
Product Type Wet-process PE (Polyethylene) separator
Application Lithium-ion / Sodium-ion battery separator
Melting Point (Shutdown) 135°C (thermal shutdown capability)
Width 75 mm
Length 10 meters per roll
Packaging Plastic-sealed bag + cushion padding
2. KG-PE20 — Wet PE Separator 20μm
Thickness 20 μm
Areal Density 11.0 g/m²
Porosity 41%
Gurley Value 224 S
MD Shrinkage / TD Shrinkage 1.4% / 0.1%
Tensile Strength (MD / TD) 196 / 165 kg/cm²
Puncture Strength 722 g
Manufacturing Standards Processed under strict ISO 9001 / Battery-grade compliance conditions
Alternative Options Explore our related separator catalog (9μm, 12μm, 16μm) or custom dimensions. For urgent technical custom requests or bulk PE separator film price inquiries, please contact our support team.

Key Features & Advantages
  • Maximum Mechanical Protection: Exceptional 722g puncture strength and 196/165 kg/cm² tensile strength provide superior mechanical robustness for safety-critical battery applications and large-format cell assembly.
  • Thermal Shutdown Safety: 135°C melting point provides rapid shutdown capability during thermal runaway events, enhancing battery safety by blocking ion conduction at elevated temperatures.
  • Superior Dimensional Stability: Exceptional thermal shrinkage control with TD shrinkage ≤ 0.1% and MD shrinkage of 1.4%, effectively preventing separator contraction and short-circuit risks.
  • Optimized Porosity & Wettability: Balanced 41% porosity and 224 S Gurley value deliver superior electrolyte wetting and consistent ionic transport for reliable electrochemical testing.
  • Research-Grade Quality Assurance: Rigorous quality control across all specifications ensures batch-to-batch consistency for reproducible coin-cell and pouch-cell assembly in laboratory and pilot-scale research.

APPLICATION SCOPE: Lithium-ion battery R&D, sodium-ion battery testing, coin-cell (CR2032, CR2025) assembly, pouch-cell prototyping, high-safety battery development, thermal runaway prevention studies, electrolyte wettability optimization, separator material benchmarking, and academic research on advanced battery separators.
PACKAGING: Plastic-sealed bag with cushion padding to prevent physical damage during transit. Each unit contains 10-meter separator roll at 75mm width. Suitable for laboratory handling and storage. Store in cool, dry, ventilated environment away from ignition and heat sources.
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. When pairing with electrolytes, ensure compatibility with PE separator chemistry — avoid aromatic hydrocarbons and aggressive solvents that may degrade PE. 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

This wet-process polyethylene separator is moisture-sensitive and must be stored in sealed, dry, and well-ventilated conditions. Exposure to heat sources, open flames, or direct sunlight can cause thermal degradation and loss of dimensional stability, as the base film has a melting point of 135°C.

  • Moisture Protection: Maintain the separator in its original sealed plastic bag until immediately before use to prevent moisture absorption that could compromise dimensional stability and electrolyte compatibility.
  • Temperature Control: Store at normal or low temperature away from any heat source to avoid premature shrinkage or melting, noting the polyethylene film melts at 135°C.
  • Mechanical Integrity: Handle the 14 μm thick film with care to avoid punctures, tears, or creasing that can create defects during battery assembly.
  • Compatibility Verification: Confirm electrolyte and cathode formulation compatibility for lithium-rich manganese-based chemistries to prevent chemical swelling or dissolution of the separator.
  • Fire Safety: Keep the separator away from open flames, sparks, and ignition sources due to the combustible nature of polyethylene material.

How does the 14 μm thickness of this wet-process PE separator affect thermal shutdown performance for lithium-rich manganese-based cells?

The separator delivers a definitive melting temperature of 135°C for thermal shutdown, which is standard for PE separators. The 14 μm thickness reduces ionic resistance, but the separator is specially formulated for lithium-rich manganese-based batteries to balance this trade-off without compromising shutdown reliability.

What compatibility factors should be considered when integrating this separator into a lithium-rich manganese-based battery design?

This wet-process PE separator is explicitly designated as special for lithium-rich manganese-based batteries, indicating targeted optimization for the high-voltage environment of that chemistry. The 14 μm thickness and 135°C melting point are key parameters that align with the stability requirements of these cathodes, though specific porosity and shrinkage data are not provided for this variant.

What storage and handling precautions are required to maintain the integrity of this 14 μm wet-process PE separator?

Store the separator sealed in a normal or low temperature, dry, and well-ventilated environment. During transport, avoid sunlight, fire, baking, and rain. The product is packaged in a plastic sealed bag with buffer pad to prevent mechanical damage, and always keep away from fire and heat sources to preserve the 135°C melting point.

This wet-process PE separator at 14 μm thickness is tailored for lithium-rich manganese-based batteries, featuring a melting shutdown at 135°C for thermal safety. The thin film and strict storage environment requirements necessitate careful handling and environmental control during deployment.

Positive

  • Tailored for Lithium-rich Manganese-based Batteries: This separator is specifically formulated for compatibility with lithium-rich manganese-based cathode chemistries, ensuring optimized electrochemical performance and cycle life in that application.
  • Thermal Shutdown at 135°C: The PE base film has a melting temperature of 135°C, providing a safety shutdown mechanism that blocks ionic transport at elevated temperatures, thereby reducing thermal runaway risk.

Trade-offs

  • Strict Storage Environment Requirements: The separator must be stored sealed in a dry, well-ventilated environment away from heat sources and sunlight; exposure to moisture or temperature extremes can degrade performance.
  • Thin 14μm Film Requires Careful Handling: The 14 μm thickness increases risk of wrinkling or tearing during manual or automated handling; protective packaging with plastic sealed bag and buffer pad is essential to prevent 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).

Additional information

lenght

20μm 75mm x 10m

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