Pre-coated steel strips for forming and welding the bipolar plates that form a key part of a hydrogen fuel cell stack.


Our product range for fuel cells includes theSanergy™ LT pre-coated stainless strip for hydrogen-powered vehicles, and Sanergy™ HT for interconnects in solid oxide fuel cell (SOFC) applications. While commodity stainless steel has good formability and stability, these coatings enhance the surface properties, by reducing the electrical resistance and improving the corrosion resistance.

Alleima has developed a unique, technologically advanced and environmentally friendly vacuum-coating concept that enables us to offer coated coils that combine excellent product performance with a simplified manufacturing process for our customers.


The race to produce the most viable climate-neutral fuel source for the future is on. While electric vehicles and batteries started out strong, hydrogen-powered – or H2 – fuel cells are beginning to look like hot contenders.

The most common type of fuel cell is the Polymer Electrolyte Membrane (PEM), or Proton-Exchange Membrane Fuel Cell (PEMFC), which uses hydrogen as fuel to generate electricity. What makes it so interesting is that the only emissions from this process are heat and water.

Learn about fuel cells and our specialist fuel cell materials.