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Hy.Power — a technology platform combining a fuel cell system and a supercapacitor

Fuel Cell Technology and Applications

Current fuel cell propulsion systems

PEM fuel cell systems for cars/buses

  1. P. Dietrich1,
  2. F. Büchi1,
  3. A. Tsukada1,
  4. M. Bärtschi1,
  5. R. Kötz1,
  6. G. G. Scherer1,
  7. P. Rodatz2,
  8. O. Garcia2,
  9. M. Ruge2,
  10. M. Wollenberg3,
  11. P. Lück3,
  12. A. Wiartalla4,
  13. C. Schönfelder4,
  14. A. Schneuwly5,
  15. P. Barrade6

Published Online: 15 DEC 2010

DOI: 10.1002/9780470974001.f311100

Handbook of Fuel Cells

Handbook of Fuel Cells

How to Cite

Dietrich, P., Büchi, F., Tsukada, A., Bärtschi, M., Kötz, R., Scherer, G. G., Rodatz, P., Garcia, O., Ruge, M., Wollenberg, M., Lück, P., Wiartalla, A., Schönfelder, C., Schneuwly, A. and Barrade, P. 2010. Hy.Power — a technology platform combining a fuel cell system and a supercapacitor. Handbook of Fuel Cells. .

Author Information

  1. 1

    Paul Scherrer Institut, Villigen PSI, Switzerland

  2. 2

    ETH Zürich, Zürich, Switzerland

  3. 3

    Volkswagen AG, Wolfsburg, Germany

  4. 4

    FEV Motorentechnik, Aachen, Germany

  5. 5

    Montena Components SA, Rossens, Switzerland

  6. 6

    EPF Lausanne, Ecublens, Lausanne, Switzerland

Publication History

  1. Published Online: 15 DEC 2010


In a joint project, the Paul Scherrer Institut PSI, ETH Zurich, FEV Motorentechnik and Volkswagen have developed the fuel cell hybrid vehicle “Hy.Power”. Hy.Power is a technology platform for the demonstration of a powertrain combining a hydrogen fuel cell system designed for 40 kW peak net power output and a double-layer capacitor arrangement with a peak power of 60 kW net. The gaseous hydrogen is stored in pressurized tanks of up to 350 bar. The potential of innovative technologies, such as newly designed bipolar plates and double-layer capacitors as well as new air supply and humidification concepts, are tested under real conditions. The fuel cell system consists of six fuel cell stacks into which the media are fed in parallel. The performance of the Hy.Power technology demonstrator was successfully tested under extreme boundary conditions by crossing the Simplon Pass in the wintry Alps in January 2002.


  • bipolar cell design;
  • supercapacitor;
  • fuel cell system;
  • powertrain;
  • hydrogen economy;
  • fuel cells for electric vehicles;
  • solid polymer fuel cells;
  • cell voltage measurements;
  • power electronics and controls