Catalyst Coated Membranes:

Catalyst coated membranes (CCM) are membranes that have had a catalyst layer deposited directly on either side of the membrane, instead of onto a Gas Diffusion Layer (GDL). These are often referred to as 3 layer CCM’s. It allows the user to then add their own gas diffusion layers to make a complete membrane electrode assembly.

EES CCM manufacturing capabilities are as follows:

Membrane options:
Membrane type Nafion NR212
Nafion XL
Nafion HP
Standard sizes (cm2) 1, 5, 25, 50, 100, 200 cm2
Custom active area size Up to 28 x 45 cm
Border area Up to 60 x 60 cm
Catalyst options 0.2-0.4 mg/cm2 Pt loading on VULCAN XC72.

EES CCM’s can come as the following 4 variants:

3 layer CCM for humidified operation EESCCM-H
3 layer CCM for self-humidified operation EESCCM-D
3 layer CCM for oxygen operation EESCCM-O
3 layer CCM - customised EESCCM-C