Freudenberg produces a comprehensive range of Gas Diffusion Layers (GDL) designed to meet all operative conditions and requirements in Hydrogen (PEMFC) and Direct Methanol Fuel Cells (DMFC).
The Gas Diffusion Layers are manufactured using Freudenberg’s proprietary nonwoven technology. This enables a high degree of design flexibility to meet the specific needs of our customers.
Technical Details
| PROPERTIES | UNIT | H15C13 | H15C14 | H14C10 | H14CX483 | H14CX653 | H23C2 | H23CX653 | H24CX483 | H23C9 | H23C6 | H23C8 | H24C5 | H23C3 |
| HYDROPHOBIC TREATMENT | • | • | • | • | • | • | • | • | • | • | • | |||
| MICROPOROUS LAYER | • | • | • | • | • | • | • | • | • | • | • | • | • | |
| Thickness @ 0.025MPa (Internal*) | µm | 195 | 190 | 170 | 180 | 185 | 255 | 250 | 250 | 250 | 250 | 230 | 270 | 290 |
| Thickness @ 1MPa (Internal*) | µm | 155 | 150 | 141 | 142 | 145 | 215 | 210 | 210 | 210 | 210 | 200 | 215 | 230 |
| Area Weight (DIN EN ISO 29073-1) | g/m² | 93 | 91 | 97 | 87 | 94 | 135 | 130 | 135 | 138 | 135 | 135 | 130 | 150 |
| Compression Set @ 1MPa (Internal*) | µm | 10 | 11 | 3 | 11 | 11 | 8 | 13 | 11 | 9 | 8 | 3 | 15 | 25 |
| TP Electrical Resistance @ 1 MPa (Internal*) | mΩ·cm² | 9 | 7 | 5 | 6 | 6 | 10 | 7 | 8 | 8 | 8 | 8 | 9 | 9 |
| IP Electrical Resistance (Internal*) | Ω | 1.1 | 1.1 | 1.1 | 1.1 | 1 | 0.8 | 0.7 | 0.7 | 0.7 | 0.7 | 0.8 | 0.7 | 0.6 |
| TP Air Permeability acc. to Gurley (ISO 5636-5) | s | 27 | 0.6 | 70 | 1 | 15 | 70 | 10 | 2 | 40 | 70 | 90 | 40 | 35 |
| IP Air Permeability @ 1 MPa (Internal*) | µm² | 2.7 | 3.1 | 1.4 | 1.2 | 1 | 2.5 | 1.4 | 1.5 | 1.7 | 1.9 | 1.5 | 2.5 | 1.5 |
| Tensile Strength (DIN EN ISO 29073-3) | N/50mm | > 70 | > 70 | > 70 | > 70 | > 70 | > 80 | > 70 | > 70 | > 70 | > 70 | > 70 | > 70 | > 70 |
| Dry Diffusion Length (Internal*) | µm | 560 | 510 | 640 | 540 | 730 | 800 | 950 | 700 | 800 | 800 | 770 | 1,000 | 1,400 |
