LINQCELL™ Graphitized Carbon Fiber Papers and Panels are made from polyacrylonitrile (PAN) fibers formed into thin veils through a wet-laying process. These veils are bonded with a carbonizable resin and then carbonized and graphitized. Graphitization at temperatures up to 2000 °C converts the structure into one similar to graphite, resulting in superior electrical conductivity, chemical stability, and mechanical properties. The thin products (thickness < 1 mm) are graphitized carbon fiber papers, while the thicker products (thickness > 1 mm) are graphitized carbon fiber panels or plates.
Carbon Porous Transport and Gas Diffusion Layers for Fuel Cells and Electrolyzers
LINQCELL™ Graphitized Carbon Fiber Papers are ideal for gas diffusion layers in fuel cells, offering excellent chemical and thermal stability with low resistance. The thicker Graphitized Carbon Fiber Panels, designed for water electrolyzers, provide improved compressibility under high-pressure conditions (up to 30 bar), ensuring optimal performance as anode porous transport layers in proton exchange membrane (PEM) and anion exchange membrane (AEM) electrolyzers. Both products are also suitable for other electrochemical devices, such as carbon dioxide electrolyzers and redox flow batteries.
LINQCELL™ Graphitized Carbon Fiber products come in sizes of 20 x 20 cm or 40 x 40 cm, with thicknesses ranging from 0.18 mm (7 mil) to 2.9 mm (114 mil) and densities from 0.5 g/cm3 to 0.8 g/cm3. These panels can be coated, inked, or loaded with anode or cathode catalysts for membrane electrode assemblies. Some thin papers are also available in roll form. We can also coat the products with microporous layers and hydrophobic PTFE layers.
Custom sizes, machined discs, and other customer-defined shapes, along with additional services such as waterproofing and surface grinding, are available. Contact us with your inquiry.