Fuel cell technology for mobile and static applications

We have made significant progress in the development of commercially viable product concepts within the area of fuel cell technology. The Fuel Cell Technology division has already registered numerous patents and industrial designs and continues to cement its position in the competitive arena.

SOFC

In collaboration with two partners, ElringKlinger has developed initial prototypes of a complete SOFC (Solid Oxide Fuel Cell) high-temperature fuel cell stack module. Initially destined for the US market, it is to be used as an energy source for stationary electric A/C in the driver’s cab of heavy trucks. In conjunction with a reformer, the stack module transforms various fuels such as diesel, natural gas or bio-ethanol into highly efficient electrical energy – with hardly any emissions. Drawing on our considerable engineering expertise within this area, we plan to adapt this highly efficient technology to applications in the field of stationary combined power/heat generation for family homes and residential apartment blocks. Depending on future government funding of grid-independent electrical energy generated in this manner, there are likely to be some interesting market opportunities in the coming years.

PEM

We have developed bipolar plates for PEM (Proton Exchange Membrane) low-temperature fuel cells, which in future are to be used in car powertrains. We have also made further improvements to the structural design of the bipolar plates, the emphasis being on optimizing the sealing systems of the individual cells. Another focal point to emerge is the development of manufacturing processes and associated tooling technology aimed at producing bipolar plates in large volumes. Within this context, the company introduced a much improved method for equipping the bipolar plates with a water-repellent coating.

DMFC

We have also developed precision-stamped and coated sealing frames for direct methanol fuel cells (DMFCs). These sealing frames are already in use in batch applications of direct methanol fuel cells that provide an alternative supply of power for end users in the area of leisure and recreation. DMFCs are now the most popular form of independent energy supply, especially for motor homes, sailing boats, holiday cabins, hunting lodges and mountain huts. They are widely available from specialist shops all over Europe.