Proton Exchange Membrane Description
Proton Exchange Membrane for flow battery, also known as a polymer electrolyte membrane, is a key component in flow batteries, especially in vanadium redox flow batteries (VRFBs) and other emerging types. Its main function is to selectively allow protons (H⁺ ions) to pass between the positive and negative chambers while blocking the crossover of larger ions, active materials, or other unwanted species from one half-cell to the other.
The introduction of special materials during the casting process has improved the strength, durability, and vanadium resistance of proton exchange membranes.
Proton Exchange Membrane Specification
Thickness & Gram Weight
|
Model
|
Thickness (μm)
|
Gram Weight (g/m²)
|
|
N-212
|
51
|
102
|
|
N-1125
|
62
|
122
|
|
N-113
|
75
|
148
|
|
N-1135
|
80
|
172
|
|
N-114
|
100
|
197
|
|
N-115
|
125
|
246
|
Physical and Other Properties
|
Physical Properties
Tensile Test (23°C, 50% RH)
|
Technical Indicators
|
|
Tensile Strength (MPa)
|
≥28
|
|
Elastic Modulus (MPa)
|
≥400
|
|
Elongation at break (%)
|
≥120
|
|
Specific Gravity
|
1.97
|
Swelling Performance
|
Swelling Performance
|
Technical Indicators
|
|
Water content (%)
|
5.0±3.0
|
|
Water absorption rate (%)
|
50.0±5.0
|
|
(23℃,50% RH) Thickness Swelling Rate
|
|
water soaked at 23℃ 50% RH
|
≤5
|
|
water soaked at 100℃ 50% RH
|
≤15
|
|
Linear expansion,% increase (23℃,50% RH)
|
|
Soaked at 23℃, 50% RH
|
≤5
|
|
Soaked at 100℃, 50% RH
|
≤18
|
Proton Exchange Membrane Application
- Grid Energy Storage - Stabilizing grids by balancing supply and demand, integrating renewables, and managing frequency.
- Backup Power - Ensuring uninterrupted power for hospitals, data centers, and critical infrastructure.
- Microgrids and Off-Grid Solutions - Supporting energy access in remote areas and enhancing microgrid resilience.
- Industrial and Commercial Use - Reducing costs through peak shaving, energy arbitrage, and power quality management.
- EV Charging Stations - Storing renewable energy for sustainable and fast charging infrastructure.
- Utility-Scale Renewable Integration - Storing energy for wind and solar plants, enabling continuous power supply.
- Long-Duration Energy Projects - Providing seasonal storage and disaster preparedness.
- Hydrogen Production Support - Complementing hydrogen generation by utilizing surplus stored energy.
Proton Exchange Membrane Packing
Our Proton Exchange Membrane for flow battery is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Specification
Thickness & Gram Weight
|
Model
|
Thickness (μm)
|
Gram Weight (g/m²)
|
|
N-212
|
51
|
102
|
|
N-1125
|
62
|
122
|
|
N-113
|
75
|
148
|
|
N-1135
|
80
|
172
|
|
N-114
|
100
|
197
|
|
N-115
|
125
|
246
|
Physical and Other Properties
|
Physical Properties
Tensile Test (23°C, 50% RH)
|
Technical Indicators
|
|
Tensile Strength (MPa)
|
≥28
|
|
Elastic Modulus (MPa)
|
≥400
|
|
Elongation at break (%)
|
≥120
|
|
Specific Gravity
|
1.97
|
Swelling Performance
|
Swelling Performance
|
Technical Indicators
|
|
Water content (%)
|
5.0±3.0
|
|
Water absorption rate (%)
|
50.0±5.0
|
|
(23℃,50% RH) Thickness Swelling Rate
|
|
water soaked at 23℃ 50% RH
|
≤5
|
|
water soaked at 100℃ 50% RH
|
≤15
|
|
Linear expansion,% increase (23℃,50% RH)
|
|
Soaked at 23℃, 50% RH
|
≤5
|
|
Soaked at 100℃, 50% RH
|
≤18
|
