Torayca GDL Technical Specifications Summary

1. Product Identification

The document provides technical data for two Torayca Gas Diffusion Layers (GDL): TGL-R-045DDB0 and TGL-R-055CCD0.

2. Physical Properties

• Areal Weight: 60 g/m² for TGL-R-045DDB0 and 56 g/m² for TGL-R-055CCD0.
• Thickness at 0.15 MPa: 152 μm (TGL-R-045DDB0) and 168 μm (TGL-R-055CCD0).
• Compressed Thickness at 1.0 MPa: 134 μm and 145 μm respectively.
• Compressed Thickness at 2.0 MPa: 122 μm and 128 μm respectively.
• Compression Set at 2.0 MPa: 8 μm for TGL-R-045DDB0 and 12 μm for TGL-R-055CCD0.

3. Performance Characteristics

• Through-Plane (TP) Gas Permeability: 188 mmAq for TGL-R-045DDB0 and 130 mmAq for TGL-R-055CCD0.
• TP Electrical Resistance at 1.0 MPa: 6 mΩ-cm² and 8 mΩ-cm² respectively.
• Bending Strength (Machine Direction / Transverse Direction): 28 MPa / 25 MPa for TGL-R-045DDB0 and 31 MPa / 27 MPa for TGL-R-055CCD0.

4. Notes and Limitations

The values provided are representative and not guaranteed, indicating typical performance metrics rather than strict specifications.

5. Summary

This data sheet outlines key mechanical and electrical properties of two Torayca GDL products, focusing on thickness under compression, gas permeability, electrical resistance, and bending strength. These parameters are critical for evaluating GDL performance in fuel cell applications, particularly under varying compression pressures.