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ATOMFAIR® multiple rolls of white PP battery separator membranes with brown cores arranged on a white background.

Dry PP Separator 20μm Low Shrinkage 60mm×100m ATOMFAIR®

$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.

Dry process PP battery separator: 20μm×60mm×100m. Low thermal shrinkage: MD≤1.1%, TD≤0.1%. Puncture strength: 167g. For Li-rich Mn cells. In stock.

SKU: AFMSUPHA406
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Description

ATOMFAIR® DRY PROCESS PP SEPARATOR 20μm (MODEL: AFSPPP20U60mm100m)

RESEARCH GRADE MATERIAL – LI-RICH MN-BASED SPECIAL

Product Overview
The AFSPPP20U60mm100m is a high-integrity dry process PP separator intentionally developed for advanced lithium-rich manganese-based battery architectures. Tailored to satisfy the intensive demands of academic laboratory diagnostics and industrial battery prototyping, this 20μm thickness iteration variant provides robust mechanical resistance and optimal electrolyte wetting metrics. Delivered in a precise 60mm × 100m specification profile, it eliminates structural cell anomalies while adhering to standard high-tier battery separator price thresholds.

Technical Specifications

PARAMETER DETAILS
1. Primary Model Identification
Product Model AFSPPP20U60mm100m
Brand Name Atomfair
Product Name Dry Process PP Separator (Special for Li-rich Mn-based)
Dimension Specification 60 mm × 100 m
2. Model AFSPPP20U60mm100m Core Metrics
Base Film Material / Thickness PP (Polypropylene) | 20 μm (Total Thickness: 20 μm)
Physical & Structural Profile Width: 60 mm | Areal Density: 11.5 g/m² | Porosity: 40% | Air Permeability: 355 S
Thermal Behavior Longitudinal Thermal Shrinkage MD: 1.1% | Transverse Thermal Shrinkage TD: 0.1% | Melting Temperature: 167 °C
Mechanical Strength Profile Longitudinal Tensile Strength: 158 kg/cm³ | Transverse Tensile Strength: 414 kg/cm³ | Puncture Strength: 167 g
3. Extended Catalog & Related Matrix Options
Dry Process PP Options AF-PP16 (16μm) | AF-PP20 (20μm) | AF-PP25 (25μm)
Wet Process PE Options AF-PE7 (7μm) | AF-PE9 (9μm) | AF-PE12 (12μm) | AF-PE16 (16μm) | AF-PE20 (20μm)
4. Compliance & Customization Trace
Manufacturing Standards Processed under strict ISO 9001 standard compliance conditions.
Custom Frameworks Alternative width slits, specific roll lengths, or specialized surface treatments are available upon institutional request.


Key Features & Advantages
  • Homogeneous Material Purity: Features an uncompromised structural configuration with highly uniform elemental distribution across the matrix.
  • Enhanced Operational Efficiency: Specifically engineered to demonstrate superior electrochemical performance, significantly boosting transfer kinetics at targeted bands.
  • Optimized Sintering/Microstructure: Advanced synthesis allows for lower required operating temperatures and ideal grain boundary integration during cell fabrication.

APPLICATION SCOPE: Premium wet process PE separator for R&D layouts, high-capacity lithium-rich manganese-based secondary coin/pouch cell validation configurations.
PACKAGING: Hermetically packaged within advanced plastic-sealed bags combined with high-density internal cushion pads to protect the structural matrix against transportation stress.
IMPORTANT NOTICE: This product is highly sensitive to ambient exposure. Keep containers tightly sealed or handle exclusively within an anhydrous inert gas environment to prevent phase contamination or degradation before thermal validation. Storage Environment: Sealed and stored in a normal or low temperature, dry, and ventilated environment. Notes: Keep away from fire and heat sources; Avoid sun exposure, fire baking, and rain during transportation.

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 requires storage in a sealed, dry, and ventilated environment away from heat sources to prevent thermal shrinkage and maintain dimensional integrity. It is designed for Li-rich Mn-based batteries and exhibits low thermal shrinkage (1.1% MD, 0.1% TD) with a melting point of 167°C, but improper handling may degrade its performance.

  • Storage Environment: Store the separator in a sealed bag under normal or low temperature, dry, and ventilated conditions to avoid moisture absorption and thermal degradation.
  • Thermal Shrinkage: Keep away from heat sources and direct sunlight to prevent longitudinal and transverse shrinkage that exceeds specified limits.
  • Mechanical Integrity: Avoid puncturing or tearing during handling as the film has a puncture strength of 167 g and tensile strengths of 158 kg/cm³ (MD) and 414 kg/cm³ (TD).
  • Compatibility: Use only in Li-rich Mn-based battery systems; compatibility with electrolytes and other battery chemistries has not been verified.
  • Transport Protection: During transportation, protect the separator from rain, sun exposure, and fire to avoid physical damage and thermal exposure.

What are the trade-offs between thermal shrinkage and mechanical strength in the Atomfair dry PP separator for Li-rich Mn-based batteries?

The Atomfair dry PP separator offers exceptional thermal stability with MD shrinkage of only 1.1% and TD shrinkage of 0.1%, which is critical for high-voltage Li-rich Mn-based cells. However, this comes with a puncture strength of 167 g, which is significantly lower than the 722 g of a comparable 20 μm wet-process PE separator, indicating a trade-off between thermal integrity and mechanical robustness.

Why is a dry PP separator specified for Li-rich Mn-based batteries instead of a wet-process PE separator?

Li-rich Mn-based batteries operate at higher voltages and temperatures, requiring a separator with superior thermal stability. The Atomfair dry PP separator has a melting temperature of 167°C and very low longitudinal thermal shrinkage (1.1% MD), whereas wet-process PE separators melt at 135°C and show higher shrinkage (e.g., 1.4% MD for a 20 μm PE separator), making PP the more compatible material for these demanding cell chemistries.

What are the critical storage and handling requirements for the Atomfair dry PP separator to maintain its low thermal shrinkage performance?

The separator must be stored sealed in a dry, ventilated, and low-temperature environment to prevent moisture uptake and thermal degradation that could increase shrinkage beyond the specified 1.1% MD and 0.1% TD. It must also be kept away from fire and heat sources, and protected from sun exposure and rain during transport to preserve its dimensional and mechanical integrity.

This dry-process PP separator for Li-rich Mn-based batteries offers ultra-low transverse thermal shrinkage (0.1%) and a high transverse tensile strength of 414 kg/cm³, providing dimensional stability and mechanical integrity for cell winding. However, its air permeability of 355 s indicates moderate ionic resistance, and strict storage conditions are required to preserve film properties.

Positive

  • Ultra-low thermal shrinkage: Longitudinal shrinkage of 1.1% and transverse shrinkage of only 0.1% at elevated temperatures minimize electrode exposure and internal short-circuit risk during battery operation or thermal runaway.
  • High transverse tensile strength: A transverse tensile strength of 414 kg/cm³ ensures robust mechanical handling during winding and stacking, reducing the likelihood of edge tearing or deformation in cell assembly.

Trade-offs

  • Strict storage and handling: The separator must be sealed and stored in a cool, dry, ventilated environment away from heat sources, moisture, and direct sunlight to prevent degradation of the PP film and maintain consistent performance.
  • Higher air permeability value: An air permeability of 355 s indicates greater resistance to electrolyte ion transport compared to thinner wet-process alternatives, which may limit rate capability in high-power applications.

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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