Reinforced AEM-Based PGM-Free Alkaline Water Electrolysis MEA - 3 Layer

Reinforced AEM Based PGM-Free Alkaline Water Electrolysis MEA - 3 Layer is a catalyst coated membrane for alkaline water electrolysis applications and free of platinum group metals (PGM-free) for both anode and cathode catalyst compositions.  Reinforcement of the anion exchange membrane (AEM) provides excellent mechanical strength for the membrane component for longer operational lifetimes compared to the unreinforced AEMs. This advanced MEA is manufactured by using the state-of-the-art production technologies where the PGM-free anode and cathode electrocatalysts are directly bonded to the surface of the reinforced AEM with the help of an anion exchange dispersion as the binder.  Application of the anode and cathode catalysts directly to the AEM surface reduces the physical distance between the anode and cathode electrodes where anion species movement is accomplished with minimal overpotential penalties and, hence, significantly higher alkaline water electrolysis efficiencies can be attained for this state-of-the-art 3-layer alkaline water electrolysis MEA compared to the conventional AEM electrolyzers where anode and cathode electrodes are manually placed on the membrane without any interface generation. Majority of the commercial AEMs are not suitable for deposition of the anode and cathode electrocatalysts directly on the membrane surface because of Hoffman degradation issues that would occur either with the membrane or anion exchange dispersion components.  On the other hand, the advanced AEM and anion exchange dispersion used for the manufacturing of this "Reinforced AEM Based PGM-Free Alkaline Water Electrolysis MEA - 3 Layer" product eliminates the limitations and enables the production of 3-layer MEA.

Anode (stainless steel mesh) and cathode (nickel foam) porous transfer layers are included for this advanced 3-layer alkaline water electrolysis MEA product. it is advised to use ~100 micrometers thick gasket for anode and ~350 micrometers thick gasket for cathode side.

• Cathode electrocatalyst: Proprietary Platinum-Group Metal Free (PGM-Free) catalyst
• Anode electrocatalyst: Proprietary Platinum-Group Metal Free (PGM-Free) catalyst
• Membrane: Reinforced anion exchange membrane with excellent operational lifetime (~75 micrometers thick)
• CCM production: Advanced AEM and anion exchange binder enable the immobilization of the anode and cathode electrodes directly on the membrane surface for high efficiencies
• Wide operational temperature range: up to 55 °C
• Low alkaline electrolyte concentration requirement: Less than 1M concentrations are needed
• Active area CCMs in production: 5cm2 and 25 cm2 (other sizes can also be manufactured and please contact us at sales@fuelcellstore.com for those and there is a MOQ for such custom inquiries)
• Application: Alkaline water electrolysis for hydrogen and/or oxygen gas generation

• Ni foam // 3-layer AEM-based CCM // Stainless Steel Mesh
• Pre-treatment: Submersion of the 3-layer CCM in 1 Molar KOH for 24 hr
• Active area: 5 cm2
• Cell temperature: 55 °C
• Gasket thickness for cathode: ~350 micrometers
• Gasket thickness for anode: ~100 micrometers
• 7 Nm torque for the mechanical clamping of the electrochemical cell
• Electrolyte: 1M KOH at 3 mL/min flow rate at the anode, 1M KOH at 3 mL/min flow rate at the cathode
• CCM activation (also known as break-in): Constant current mode, at 0.2 A/cm2 for 15 min

4-5 weeks of lead time is to be expected.

MEA Properties
Membrane Type	Anion exchange
Membrane Thickness	~75 microns
Anode Catalyst	PGM-free proprietary anode electrocatalyst
Cathode Catalyst	PGM-free proprietary cathode electrocatalyst
Membrane Properties
Membrane	Reinforced anion exchange membrane (proprietary for the polymer structure or composition)

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