Fuel cells can be used in various mobile and stationary applications for power generation and production of heat at low emission levels.

Bi­polar plates (BPP), gas diffusion layers (GDL) and the Proton Exchange Membrane (PEM) are the key compo­nents for PEM-Fuel Cells, the fuel cell system most likely to be used in automotive propulsion and other applications.

Based on expanded natural graphite we manufacture ultra light and thin SIGRACET^® BPP. Together with our SIGRACET^® GDL materials and polymer based BPP’s, this material is sold through our Fuel Cell Components business.

Redox batteries store electricity by an electrochemical process. They are particularly suitable for off-grid energy supply systems used in areas without a mains supply.

Owing to their good electrical con­ductivity and chemical resistance, SIGRACET^® BPP made from expanded graphite are used as electrode mate­rial for the following applications:

• Temporary storage systems to com­pensate for peak energy demands
• Mobile radio installations and other IT facilities
• Emergency power supply units