FAP-450 Anion-Exchange Membrane (T 50um * W 100mm * L 100mm) for Redox Flow Battery, CRFBAEMFAP450
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The Fumasep FAP-450 is a high-performance Anion Exchange Membrane (AEM) manufactured by Fumatech. It is widely regarded as a "gold standard" in laboratory and commercial research for Vanadium Redox Flow Batteries (VRFBs) and other acidic aqueous redox systems. The FAP-450 is a non-reinforced, partially fluorinated membrane. Its design focuses on balancing low electrical resistance with an exceptional ability to block the crossover of metal ions (like Vanadium). Its applications are mainly displayed below:
(1) Vanadium Redox Flow Batteries (VRFB): This is its most common use. Because it is an anion exchanger, it effectively blocks the positively charged vanadium ions from crossing over, which significantly reduces self-discharge and capacity decay.
(2) Non-Aqueous Redox Flow Batteries (NARFB): Researchers often use FAP-450 in organic solvent systems (like acetonitrile) due to its chemical compatibility, though swelling behavior must be monitored.
(3) Acid Recovery & Electrodialysis: Used in processes requiring the transport of anions while blocking protons or metal cations in highly acidic environments.
| Part Number |
CVRFBAEMFAP450 (C-VRFB-AEMFAP450) |
| Appearance |
Transparent membrane |
| Back Substrate |
Single-side PET (need peeling off), no reinforcement layer |
| Dimension |
T 50um * W 100mm * L 100mm (Other membrane sizes can be supplied upon request) |
| Areal Mass |
7.5-8.5 mg/cm2 |
| Planar Resistivity (0.5M H2SO4) |
0.45-0.60 Ω · cm2 |
| Conductivity (0.5M H2SO4) |
9-12 mS/cm |
| Selectivity |
90-96% (0.1/0.5 mol/kg KCl) |
| Proton Transmission Rate |
2500-4500 umol · min-1 · cm-2 |
| pH Stability |
Stable when pH <4 Unstable when pH>11 |