NEPEM N-1125 Proton Exchange Membrane for Vanadium Flow Battery

The introduction of special materials into the tape casting process enhances three key properties of proton exchange membranes: their strength, moisture retention capacity, and resistance to vanadium ions. This modification effectively addresses performance limitations often associated with conventional membrane fabrication.

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Description

Improved strength, moisture retention and vanadium resistance through special materials in tape casting process.

Thickness and Basis Weight
Thickness (μm) 62
Weight (g/m²) 122
Physical Properties (23°C,50%RH)
Tensile Strength (MPa) ≥30
Elastic Modulus (MPa) ≥400
Elongation at Break (%) ≥120
Specific Gravity 1.97
Performance
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
Hydrolytic Properties
Water Content (%) 5.0±3.0
Water Uptake (%) 50.0±5.0
Thickness Swelling (23°C water, %) ≤5
Thickness Swelling (100°C water, %) ≤15
Linear Expansion (23°C water, %) ≤5
Linear Expansion (100°C water, %) ≤18