NEPEM N-114 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 (ฮผm) 100
Weight (g/mยฒ) 197
Physical Properties (23ยฐC,50%RH)
Tensile Strength (MPa) โ‰ฅ30
Elastic Modulus (MPa) โ‰ฅ400
Elongation at Break (%) โ‰ฅ120
Specific Gravity 1.97
Performance
Conductivity (S/cm, 23ยฐC,100%RH) โ‰ฅ0.100
Normal Conductivity (S/cm, 25ยฐC in 3M Hโ‚‚SOโ‚„) โ‰ฅ0.04
Acid Capacity (meq/g) 1.00ยฑ0.05
Hydrolytic Properties
Water Content (%) 5.0ยฑ3.0
Water Uptake (%) 50.0ยฑ5.0
Thickness Swelling (23ยฐC water, %) โ‰ค5
Thickness Swelling (100ยฐC water, %) โ‰ค15
Linear Expansion (23ยฐC water, %) โ‰ค5
Linear Expansion (100ยฐC water, %) โ‰ค18