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NEPEM N-212 grade Proton Exchange Membrane 50μm for VRFB

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NEPEM N-212 grade proton exchange membrane for VRFB. Thickness 50μm, weight 99 g/m², conductivity ≥0.1 S/cm, acid capacity 1.00 meq/g. In stock.

SKU: AFMSZBQD947
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Description

ATOMFAIR® VRFB ION EXCHANGE MEMBRANE TAPE CASTING SHEET

RESEARCH GRADE MATERIAL

Product Overview
Engineered through an advanced tape-casting process, this commercial-grade proton exchange membrane delivers exceptional cell-to-cell consistency, improved tensile strength, superior moisture retention, and high vanadium cross-mixing resistance. It functions as an ideal baseline testing control for next-generation Vanadium Redox Flow Battery (VRFB) stacks, eliminating variables across continuous verification platforms. Laboratories can leverage our secure tape casting ion exchange membrane price mapping to scale electrochemical storage architectures with uncompromised operational life.

Technical Specifications

PARAMETER DETAILS
1. Core Device & Electrochemical Design
Thickness (μm) 50
Weight (g/m²) 99
2. Mechanical & Physical Properties (23°C, 50% RH)
Tensile Strength (MPa) ≥ 30
Elastic Modulus (MPa) ≥ 400
Elongation at Break (%) ≥ 120
Specific Gravity 1.97
3. Electrochemical Performance Metrics
Conductivity (S/cm, 23°C, 100% RH) ≥ 0.100
Normal Conductivity (S/cm, 25°C in 3M H2SO4) ≥ 0.04
Acid Capacity (meq/g) 1.00 ± 0.05
4. Hydrolytic & Dimensional Properties
Water Content (%) 5.0 ± 3.0
Water Uptake (%) 50.0 ± 5.0
Thickness Swelling (23°C / 100°C Water) ≤ 5% at 23°C | ≤ 15% at 100°C
Linear Expansion (23°C / 100°C Water) ≤ 5% at 23°C | ≤ 18% at 100°C
Manufacturing Rules Processed under strict ISO standard manufacturing compliance conditions
Alternative Options Explore our related catalog or custom dimensions. For urgent technical custom requests or bulk inquiries, please contact our support team.


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: Vanadium redox flow battery (VRFB) architectures, energy storage stack R&D, and high-acid electrochemical cells.
PACKAGING: Precision-rolled protective vacuum membrane cylinders or custom die-cut sheets.
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.
TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official institutional quotations.
EMAIL: INQUIRY@ATOMFAIR.COM
MANUFACTURER: ATOMFAIR LLC

This proton exchange membrane exhibits controlled water uptake and swelling behavior when exposed to vanadium electrolyte. Proper storage and handling within specified humidity and temperature ranges are critical to prevent dimensional instability and performance degradation.

  • Storage Humidity Control: Maintain relative humidity between 30-50% to prevent excessive water uptake and thickness swelling.
  • Temperature Stability Requirement: Store at 15-25°C to minimize linear expansion and preserve membrane conductivity.
  • Mechanical Handling Precautions: Avoid puncturing or creasing the membrane to prevent localized stress concentration and tear propagation.
  • Pre-Assembly Conditioning: Allow membrane to equilibrate in electrolyte before stack assembly to avoid dimensional mismatch.
  • Vanadium Compatibility Limit: Confirm electrolyte vanadium ion concentration does not exceed the membrane's designed crossover resistance.

How does the NEPEM N-212 membrane maintain high proton conductivity while limiting dimensional swelling in vanadium flow battery operation?

The membrane achieves ≥0.100 S/cm conductivity at 23°C, 100%RH and ≥0.04 S/cm in 3M H₂SO₄, while limiting thickness swelling to ≤5% at 23°C and ≤15% at 100°C through a tape casting process using special materials that improve moisture retention and vanadium resistance. This combination ensures stable ion transport without excessive expansion that could compromise cell integrity.

What specific advantages does the NEPEM N-212 membrane offer for vanadium redox flow batteries compared to standard PFSA membranes?

NEPEM N-212 is specifically engineered for VRFBs with enhanced vanadium resistance and moisture retention from its special tape casting formulation. At 50 µm thickness and 99 g/m² weight, it delivers balanced mechanical performance (tensile ≥30 MPa, elongation ≥120%) and an acid capacity of 1.00±0.05 meq/g, directly addressing the crossover and durability challenges common in vanadium flow battery systems.

What are the critical handling and storage requirements for NEPEM N-212 proton exchange membrane to maintain performance?

The membrane must be stored under controlled humidity to maintain its water content of 5.0±3.0% and water uptake of 50.0±5.0%. Given linear expansion of ≤18% at 100°C, the membrane should be fully hydrated before cell assembly and never exposed to prolonged dry conditions, as dimensional changes could affect electrode alignment and sealing in the flow battery stack.

The NEPEM N-212 proton exchange membrane is specifically designed for vanadium flow batteries, offering enhanced vanadium resistance and mechanical strength through a tape casting process. It delivers high proton conductivity (≥0.100 S/cm at 23°C, 100% RH) and controlled water uptake with minimal low-temperature swelling, but requires strict humidity management during operation and careful thermal consideration due to significant in-plane expansion at elevated temperatures.

Positive

  • Enhanced vanadium resistance and mechanical strength: Tape casting improves vanadium resistance and delivers tensile strength ≥30 MPa with elastic modulus ≥400 MPa, reducing degradation and mechanical failure in flow battery cycling.
  • Optimized hydration and dimensional stability: Water uptake of 50.0±5.0% combined with thickness swelling ≤5% at 23°C ensures consistent proton conduction and minimal mechanical stress during operation.

Trade-offs

  • Conductivity specified at 100% RH: Proton conductivity is measured at 23°C and 100% relative humidity; deviations from fully saturated conditions will reduce ionic transport, requiring meticulous humidity control in cell design.
  • Significant expansion at high temperature: Linear expansion reaches up to 18% at 100°C in water, which may cause delamination or seal failure, necessitating thermal management to avoid membrane distortion during elevated-temperature operation.

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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