NEPEM N-212 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.

Description

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

Thickness and Basis Weight
Thickness (μm) 50
Weight (g/m²) 99
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