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Gas Diffusion Layers

Gas Diffusion Layers - AvCarb MB-39

AvCarb LLC

  • Base paper: EP40
  • Nominal thickness 196 µm at 5.0 N/cm²
  • Nominal basis weight 55 g/m²
  • Machine-direction break strength ≥1200 N/m²
  • Machine-direction stiffness ≥5 Taber units
  • Surface roughness 4.5 µm Ra
  • Metallic impurities ≤10 ppm
  • Bulk density 0.27 g/cm³
  • Through-plane resistivity ≤14 mΩ·cm² at 1 MPa

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Description Vendor

The AvCarb MB-39 is a gas diffusion layers product from AvCarb Material Solutions for hydrogen and fuel-cell system applications. Its specified configuration includes Thickness 196 µm at 5.0 N/cm²; nominal basis weight 55 g/m²; base paper EP40; metallic impurities ≤10 ppm. Its principal deployment contexts include pem fuel-cell gas diffusion layers and electrode gas and water-management layers. The technical design also includes base paper: ep40, nominal thickness 196 µm at 5.0 n/cm², nominal basis weight 55 g/m², machine-direction break strength ≥1200 n/m². Its documented capability set includes provides gas diffusion and water management within electrochemical cells; provides conductive carbon support and controlled compression behavior; supports selection by target compressed thickness and diffusivity. For system designers evaluating gas diffusion layers, these details define the model's operating values, physical or control characteristics, and the functions available for integration into the relevant hydrogen process or electrochemical system. The product can also be applied in applications requiring controlled gdl thickness under compression, with selection based on the stated specifications and the surrounding system requirements.

Use Cases

  • PEM fuel-cell gas diffusion layers
  • Electrode gas and water-management layers
  • Applications requiring controlled GDL thickness under compression
  • Fuel-cell stacks where low metallic-impurity carbon materials are specified

Capabilities

  • Provides gas diffusion and water management within electrochemical cells
  • Provides conductive carbon support and controlled compression behavior
  • Supports selection by target compressed thickness and diffusivity
  • Provides a defined base-paper and microporous-layer system
AvCarb LLC AvCarb LLC manufactures engineered carbon materials for electrochemical systems. Its verified hydrogen-related scope in this batch includes carbon-paper gas diffusion layers, surface-coated gas diffusion systems, flexible graphitic GDLs, molded graphite laminates, carbon felts and woven carbon fabrics for fuel-cell and electrolyser environments.
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