Price range: 35.00 € through 195.00 €
Fumatech FAP-450 partially fluorinated anion exchange membrane, optimized for Vanadium Redox Flow Batteries with low area resistance and high oxidative stability.
The FAP-450 is a 50 µm partially fluorinated, unreinforced anion exchange membrane from Fumatech, designed for electrochemical applications requiring high oxidative stability — particularly Vanadium Redox Flow Batteries (VRFB) operating under aqueous acidic conditions.
It offers a low area resistance of <0.7 Ω·cm² (in 0.5 M H₂SO₄), high ion selectivity (>92%), low vanadium uptake (<10 wt%), and low dimensional swelling (<10%) — key properties for maintaining efficiency and durability over extended cycling. Its mechanical stability is excellent, with a tensile strength >70 MPa and elongation at break >250%.
The membrane is delivered dry on a PET backing foil and requires no pretreatment before use. Operating range is pH < 4 and room temperature up to 50°C.
Main application area: Vanadium redox flow batteries (VRFB)
For other dimensions or custom cut-outs, please contact us.
| Property | Unit | FAP-450 |
| Membrane type | Anion exchange membrane | |
| Appearance | Transparent | |
| Backing foil | PET | |
| Reinforcement | None | |
| Counter ion | None | |
| Delivery form | Dry | |
| Thickness (dry) | µm | 44 – 56 |
| Area resistance in 0.5 M H₂SO₄ | Ω cm² | < 0.7 |
| Selectivity 0.1 / 0.5 mol/kg KCl at T = 25 °C | % | > 92 |
| Uptake in vanadyl sulfate at T = 25 °C | wt % | < 10 |
| Dimensional swelling in vanadyl sulfate at T = 25 °C | % | < 10 |
| Young’s modulus at 23 °C / 50% r.h. | MPa | > 1100 |
| Tensile strength at 23 °C / 50% r.h. | MPa | > 70 |
| Elongation at break at 23 °C / 50% r.h. | % | > 250 |
Copied from Fumatech’s offical datasheet
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