AEMION+™ - AF3-HWK9-75

Harmonization Code : 3920.99.53 |   Other plates, sheets, film, foil and strip, of plastics, non-cellular and not reinforced, laminated, supported or similarly combined with other materials ; Of other plastics ; Ion-exchange membranes of fluorinated plastic material, for use in chlor-alkali electrolytic cells
Main features
  • Water Electrolysis
  • 75 micron
  • Woven PEEK Reinforcement

Product Description

AEMION+™-AF3-HWK9-75 is a breakthrough advanced polyimidazolium-based ion exchange membrane that enables the rapid growth of the hydrogen economy. Ionomr's Aemion+® anion exchange membranes are significantly more durable than our competitors', leading to thinner membranes, longer service life and reduced overall system costs.

AEMION+™ membranes have low ionic resistance and high electrical resistance. They are the first available commercial materials with excellent chemical stability in solutions of both high and low pH, and even in the harshest alkaline electrolysis systems (2–3M KOH, 80-100 °C). These advanced anion exchange membranes are frontiers in materials science with their unique hydrocarbon structure and good mechanical strength. All of these desirable properties unlock other potential applications that were previously constrained by the membrane’s poor durability and integrity. AEMION+™ is the enabling, platform material for the scale-up of AEMWE technology to industrial level. 

Product Family
20 x 30 cm 32 x 312.5 cm
Roll Membrane

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.

Technical Specifications

Hydrolytic Properties
Linear Expansion 3 %
Water Uptake 15 %
Z-Expansion 8 %
General Properties
Total Thickness
Total Thickness
Total thickness is taking into account all the films, coatings, adhesives, release liners and special layers and is the maximum thickness of a film or tape.
75 μm
Physical Properties
Young's modulus 630 MPa
Mechanical Properties
Elongation is the process of lengthening something.

It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks.

It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
26 %
Tensile Strength
Tensile Strength
The tensile strength of a material is the maximum amount of tensile stress that it can withstand while being stretched or pulled before failure.

Some materials break very sharply, without plastic deformation, in what is called a brittle failure. Others, which are more ductile, including most metals, experience some plastic deformation and possibly necking before fracture.
Tensile Strength
Tensile Strength
Tensile strength determines the resistance of a material to break under tension and it measures how much elongating load (or tensile stress) it can handle before fracture.

To make it simple, it measures how much force we have to apply when pulling apart a material before it breaks.
58 MPa
Thermal Properties
Glass Transition Temperature (Tg)
Glass Transition Temperature (Tg)
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding.

The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.
300 °C

Additional Information

Non Disclosure Agreement

This is a proprietary product from Ionomr, therefore, we require a signed NDA between the end customer and Ionomr before we are able to ship out the material, either for commercial use, or research.

This is done to prevent reverse engineering and public disclosure. The NDA does not restrict patenting anything, but does include the physical materials and their composition as confidential which prevents specific disclosure in a patent or otherwise but not calling out use of an AEM including Aemion by trade name. The test results are included as confidential information, and require  approval from both parties to disclose. We are not concerned about blocking any publications, but would typically advise if we believe better results can be achieved.

We have a more explicit MTA (Materials Transfer Agreement) we use with academic/research organizations which outlines more detail around materials IP and publication.

Please find the NDA here and fill it in when contacting us for quotations.

AEMION+® Anion Exchange Membranes Enable Large-scale Commercial Development

Alkaline water electrolysis (AWE) is the most mature technology that has been used extensively over the past decades. In this configuration, a liquid caustic electrolyte solution, most commonly NaOH and KOH, is pumped into the system composed of electrodes separated by a porous diaphragm. While AWE is a low-cost technology owing to its propensity for cheap catalysts, it suffers from large internal resistance between the diaphragm and liquid electrolyte. It typically operates under low current densities, which consequently requires bulky stack configurations at larger scales.

To make the electrolyzer design more compact, proton exchange membranes are used instead of the liquid electrolyte in AWE. Instead of OH ions in AWE, H+ ions are the mobile carriers in proton exchange membrane water electrolysis (PEMWE). H+ ions exhibit significantly better ionic conductivity than OH, which makes the achieved efficiency of PEMWE higher than that of AWE. On top of that, the more compact design of PEMWE makes it able to operate even under high current densities. The caveat? Since PEMWE operates under highly acidic conditions, the catalysts that can be used are often limited to platinum group metals, increasing the CAPEX and OPEX of PEMWEs. 


Advantages and Disadvantages of AWE, PEMWE, and AEMWE
This has got scientists and engineers thinking. We should have a technology that combines the advantages of AWE and PEMWE, a technology that enables a compact configuration and does not require the use of PGM metal catalysts. Alkaline anion exchange membrane water electrolysis (AAEMWE) is an emerging technology that uses an anion exchange membrane, therefore, bridging the possibility of using low-cost catalysts while maintaining a compact, zero-gap water electrolyzer structure.

At their current scale, the CAPEX of AWE and PEMWE are way above the targets set by the US Department of Energy. Low CAPEX water electrolysis systems like AAEMWE makes it possible for green hydrogen production technologies to become more competitive against the traditional steam reforming process. Following this thought, developing high-performance and stable alkaline anion exchange membranes facilitates the growth of a sustainable hydrogen economy. 


In the white paper, “Hydrogen Production Cost by AEMION+®,” the investment costs of AEMWE systems at scales comparable to those of the most recent industrial-scale AWE and PEMWE deployments. The investment costs of five water electrolyzer configurations were compared.

At 1 MW scale, the investment costs for AWE ($1279/kW) and PEMWE ($1168/kW) systems are quite similar. Meanwhile, the costs for AEMWE systems using AEMION+® are considerably lower at   $931/kW and  $926/kW without and with PGM catalysts. At a larger economy of scale, at 5 MW, the costs for all five technologies were all lower. More importantly, the costs for the AEMWE systems are still the lowest ($444/kW and  $459/kW).

Without a doubt, the pathway towards low cost and sustainable water electrolysis is possible with further developments in AEMWE technologies. Using Ionomr Innovations' Aemion+TM membrane, AEM stability has increased to the point where large-scale commercial development is possible, and performance may be improved based on a stable platform to approach PEMWE. Ionomr is partnering with industry players and research institutes throughout the world to scale up this technology and thoroughly evaluate its durability and performance in order to demonstrate AEMWE's value proposition for the provision of energy-efficient and low-cost green hydrogen. 


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AEMION+ ® Reinforced Membranes Handling, Storage, and Pre-treatment Instructions