Labasics
Anion Exchange Membranes (AEM), Non-Reinforced & PK-Reinforced, 30-200 mm
Anion Exchange Membranes (AEM), Non-Reinforced & PK-Reinforced, 30-200 mm
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About this item
- Electrochemical Applications: anion exchange membranes are key functional materials in electrochemical systems, widely used in alkaline water electrolysis, fuel cells, electrodialysis, and electrochemical CO₂ reduction
- LB-20 & LB-50 (Non-Reinforced): LB-20 and LB-50 are non-reinforced anion exchange membranes, delivering low ionic resistance, high ion selectivity, and excellent stability in acidic, alkaline, and corrosive environments
- LB-PK-75 & LB-PK-130 (PK-Reinforced): LB-PK-75 and LB-PK-130 are PK-reinforced anion exchange membranes, featuring low ionic resistance, high ion selectivity, enhanced mechanical strength, and long-term stability in acidic, alkaline, and corrosive conditions
- Note: the membranes are highly sensitive to humidity and water content. Dimensional deviations of up to ±5 mm may occur due to swelling or shrinkage. Immersion in deionized water can help restore flatness
- Sizes & Thicknesses: available in multiple thicknesses and standard sizes for laboratory research and industrial use. Custom sizes are available upon request
Questions & Answers
Have a Question?
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How should anion exchange membranes be stored?
Dear Customer,
In a dry state, membranes can be stored in a sealed container for over 12 months. For short-term wet storage (hours to weeks), they can be kept in 0.5-1.5 wt% sodium chloride solution or a similar neutral-pH electrolyte. For long-term storage, use a sealed container with the above electrolyte and add a biocide to prevent microbial contamination.
Best regards,
Labasics Team
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Why might the membrane size differ from the nominal cut size?
Dear Customer,
The membranes are highly sensitive to humidity and water content, which may cause ±5 mm dimensional variations due to swelling or shrinkage. Because of this sensitivity, membranes may appear wrinkled when dry; soaking in deionized water restores them to a flat state.
Best regards,
Labasics Team
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What is the delivery condition and appearance of the membranes?
Dear Customer,
All anion exchange membranes are delivered in a dry state as brown sheets. LB-50 and LB-20 come with a backing layer that should be carefully separated before use.
Best regards,
Labasics Team
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Is any pre-treatment required before using the membranes?
Dear Customer,
Pre-treatment is recommended before wet assembly. Membranes can be soaked in deionized water or the intended electrolyte to remove residues and stabilize their dimensions.
Best regards,
Labasics Team
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What is the applicable pH and temperature range for these membranes?
Dear Customer,
At 25 °C, the membranes are suitable for pH 1 - 14. The recommended operating temperature range is 15-40 °C.
Best regards,
Labasics Team
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What is the difference between reinforced and non-reinforced anion exchange membranes?
Dear Customer,
LB-PK-75 and LB-PK-130 are PK-reinforced membranes, offering higher mechanical strength and long-term stability. LB-20 and LB-50 are non-reinforced membranes, with lower electrical resistance and high ion selectivity.
Best regards,
Labasics Team
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What is an anion exchange membrane and what are its main applications?
Dear Customer,
An anion exchange membrane is a functional membrane material that allows the passage of anions while blocking cation migration. It is widely used in alkaline water electrolysis, fuel cells, electrodialysis, desalination, and electrochemical CO₂ reduction.
Best regards,
Labasics Team