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FAPQ-330 Anion Exchange Membrane
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FAPQ-330 Anion Exchange Membrane

Price range: 28.00 € through 165.00 €

Fumatech FAPQ-330 partially fluorinated anion exchange membrane, optimized for high power density in Vanadium Redox Flow Batteries with ultra-low area resistance and excellent oxidative stability.

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About the product

The FAPQ-330 is a 30 µm partially fluorinated, unreinforced anion exchange membrane from Fumatech, designed for Vanadium Redox Flow Batteries (VRFB) where high power density is a priority. At just 30 µm — thinner than the FAP-450 — it delivers an even lower area resistance of <0.5 Ω·cm², making it well suited for high-current-density operation.

It offers high ion selectivity (>90%), good mechanical stability (tensile strength >35 MPa, elongation at break >200%), and a bubble point >3 bar confirming membrane integrity. Operating range is pH < 4 and room temperature up to 50°C.

The membrane is delivered dry on a PET backing foil and requires no pretreatment before use.

Main application area: Vanadium redox flow batteries (VRFB) and Organic redox flow batteries (ORFB)

 
To suit your specific research needs, we provide membranes in several formats:
  • Standard Sheets: 12.5 x 12.5 cm and 20 x 30 cm sheets for custom cutting.
  • Pre-Cut for Our Cells:
    • Cut w. alignment holes: For all our single cell test hardware.
    • Cut for X-Stack: Perfectly sized for our X-Stack electrolyser.
    • Cut for S-Stack: Designed for our S-Stack flow battery.
    • Cut with manifold holes: For our 3 and 4-compartment X-Cell.

For other dimensions or specific cut-outs, please make an inquiry. We are happy to provide custom solutions for your project.

Property Unit FAPQ-330
Membrane type   Anion exchange membrane
Appearance   Transparent
Backing foil   PET
Reinforcement   None
Counter ion   Chloride (Cl⁻) / Methylsulfate (MeOSO₃⁻)
Delivery form   Dry
Thickness (dry) µm 26 – 34
Weight per unit area mg cm⁻² 4.2 – 5.4
Area resistance in Cl⁻ form Ω cm² < 0.5
Conductivity in Cl⁻ form mS cm⁻¹ > 6
Selectivity 0.1 / 0.5 mol/kg KCl at T = 25 °C % > 90
Uptake in water at T = 25 °C wt % < 30
Dimensional swelling in H₂O at T = 25 °C % < 12
Young’s modulus at 23 °C / 50% r.h. MPa > 800
Tensile strength at 23 °C / 50% r.h. MPa > 35
Elongation at break at 23 °C / 50% r.h. % > 200
Proton transfer rate nmol min⁻¹ cm⁻² 5,000 – 8,000
Bubble point test in water at T = 25 °C bar > 3

Copied from Fumatech’s offical datasheet

Technical Datasheet – fumasep FAPQ-330-onPET

Video Guide for Removing Support Film

Support & Inquiry

Do you have specific questions or would you like help in selection and configuration of our product:

FAPQ-330 Anion Exchange Membrane

You are very welcome to contact us in the form here. We are ready to support you in selecting the best solutions for your R&D.

Always include as much information as you can about your project, what type of chemistry you are planning to use, what is the purpose of the equipment  you are interested in. That will make it much easier for us to guide you towards the best solution for your project. 

Your question and Inquiry

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