Membrane Electrode Assemblies:
The membrane electrode assembly (MEA) is an assembly of a PEM membrane, a catalyst layer either side of the membrane and two GDL’s which are hot pressed to form a single component. Each side of the membrane then forms an electrode, often called a gas diffusion electrode (GDE) which is a combination of the catalyst layer and the GDL.
EES MEA manufacturing capabilities are as follows:
| Membrane options: |
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| Membrane type |
Nafion NR212 |
|
Nafion XL |
|
Nafion HP |
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| Standard sizes (cm2) |
1, 5, 25, 50, 100, 200 cm2 |
|
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| Custom active area size |
Up to 28 x 45 cm |
|
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| Border area |
Up to 60 x 60 cm |
|
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| GDE options: |
|
| Catalyst |
0.2-0.4 mg/cm2 Pt loading on VULCAN XC72. |
|
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| GDL |
SGL24BC |
|
CeTech GDL240 |
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EES MEA’s can come as the following 4 variants:
| 5 layer MEA for humidified operation |
EESMEA-H |
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| 5 layer MEA for self-humidified operation |
EESMEA-D |
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| 5 layer MEA for oxygen operation |
EESMEA-O |
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| 5 layer MEA - customised |
EESMEA-C |
