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Membrane Electrode Assemblies (MEA)

The Membrane Electrode Assembly (MEA) is the core component of a fuel cell that helps produce the electrochemical reaction needed to separate electrons. On the anode side of the MEA, a fuel (hydrogen, methanol etc.) diffuses through the membrane and is met on the cathode end by an oxidant (oxygen or air) which bonds with the fuel and receives the electrons that were separated from the fuel. Catalysts on each side enable reactions and the membrane allows protons to pass through while keeping the gases separate. In this way cell potential is maintained and current is drawn from the cell producing electricity.

A typical MEA is composed of a Polymer Electrolyte Membrane (PEM), two catalyst layers, and two Gas Diffusion Layers (GDL). A MEA with this configuration is known as a 5-Layer MEA due to its composition. An alternative version of a membrane electrode assembly is the 3-Layer MEA which is composed of a polymer electrolyte membrane with catalyst layers applied to both sides, anode and cathode. An alternative name for this type of MEA is a Catalyst Coated Membrane (CCM). See the diagram below for an example of each type:

We can supply MEAs for many applications including, Electrolyzers, Polymer Electrolyte Fuel Cells, Hydrogen / Oxygen Air Fuel Cells, Direct Methanol Fuel Cells, and many more! Contact us for more information at sales@fuelcellstore.com.

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Hydrogen Air CCM - 3 Layer
3-Layer, Catalyst Coated Membrane Electrode Assembly (MEA) for use in Hydrogen/Air Fuel Cells. &n..
From $178.00

Hydrogen Air MEA - 5 Layer
5-Layer Membrane Electrode Assembly (MEA) with integrated Gas Diffusion Layers (GDL) for use in H..
From $60.00
Based on 2 reviews.

Liquid Electrolyte Matrix Assembly
Liquid Electrolyte matrix assemblies which consist of Pt Catalyst with silicone carbide coat..

Build Your Own Fuel Cells 5L MEA 10cm²
5 Layer Membrane Electrode Assembly with GDL for use in hydrogen air/oxygen fuel cells. This is t..
Based on 1 reviews.

Hydrogen Oxygen MEA - 5 Layer
High performance Polymer Electrolyte Fuel Cell (PEMFC) Membrane Electrode Assembly (MEA) where pe..
From $75.00

Hydrogen Oxygen MEA - 3 Layer
The 3-layer or Catalyst Coated Membrane (CCM) version of the popular 5-layer Hydrogen/Oxygen MEA,..
From $173.00

Electrolyzer MEA - 3 Layer
Electrolyzer Membrane Electrode Assemblies (MEA) for high efficiency production of Hydrogen and O..
From $169.00

Reversible Fuel Cell MEA - 3 Layer
These Reversible Membrane Electrode Assemblies (MEA) can be used as in an Electrolyzer for Hydrog..
From $174.00
Based on 2 reviews.

Direct Methanol Fuel Cell MEA - 5 Layer
Methanol (MeOH) can be utilized directly (without the need for a reformer) with Direct Methanol F..
From $79.00
Based on 1 reviews.

Direct Methanol Fuel Cell MEA - 3 Layer
Methanol (MeOH) can be utilized directly (without the need for a reformer) with Direct Methanol F..
From $183.00