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NEPEM N-1135 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 (ฮผm) 80
Weight (g/mยฒ) 172
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

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