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Product Overview
The proton exchange membrane for flow batteries is a high-performance membrane made from perfluorosulfonic acid resin, specifically designed for unidirectional cation transport. This membrane features a thin profile, high strength, low swelling rate, excellent dimensional stability, and high durability, making it ideal for applications in vanadium redox flow batteries and iron-chromium flow batteries.
Product Features
Outstanding Mechanical Properties: High tensile strength (≥28 MPa) and elongation at break (≥120%), ensuring stability under demanding conditions.
High Proton Conductivity: Conductivity of ≥0.100 S/cm enhances proton exchange efficiency.
Low Swelling Rate: Thickness swelling rate ≤5% at 23°C and 50% RH, maintaining dimensional stability.
Durability and Vanadium Ion Blocking: Resistant to acid and alkali, with anti-permeation characteristics to extend membrane lifespan.
Various Thickness Options: Available in different thicknesses to meet diverse application needs.
Applications
Vanadium Redox Flow Battery: Provides efficient proton exchange and durability in vanadium battery systems.
Iron-Chromium Flow Battery: Ensures stability and longevity in iron-chromium battery systems.
Other Flow Battery Systems: Suitable for a variety of flow battery applications requiring high conductivity and durability.
| Model | EM8115A | EM8120A | EMV850 |
| Thickness (μm) | 60±2 | 50±3 | 50±2 |
| Grammage (g/m²) | 130±10 | 120±10 | 100±5 |
| Tensile Strength (Transverse/Longitudinal) (MPa) | ≥30/30 | ≥25/25 | ≥28/28 |
| Elongation at Break (Transverse/Longitudinal) (%) | ≥150/150 | ≥200/200 | ≥150/150 |
| Puncture Strength (gf) | ≥550 | ≥500 | ≥500 |
| Moisture Content (%) | ≤7 | ≤7 | ≤5 |
| Swelling Rate (Transverse/Longitudinal) (%) | ≤6/6 | ≤7/7 | ≤5/5 |
| Vanadium Ion Permeability (10⁻⁷ cm²/min) | ≤10 | ≤10 | ≤10 |
| Coulombic Efficiency (%) | ≥96.5 | ≥96.5 | ≥96.5 |
| Energy Efficiency (%) | ≥81.5 | ≥82.5 | ≥82.5 |
| Voltage Efficiency (%) | ≥83.5 | ≥85.5 | ≥85.5 |
