- More than 40 years experiences in the field of fuel cells and batteries (330 papers, 10 patents and 4 books)
- Editor-in-Chief "Encyclopedia of Electrochemical Power
Sources" (ELSEVIER, 2009, 5 Volumes, 5,000 pages)
- Formerly Director of the Electrochemical Energy Storage and Conversion Division of the Center for Solar Energy and Hydrogen Research (ZSW)
- European and German representative in the "International Partnership for Hydrogen Economy" (IPHE) E&T Task Force
- Deputy Speaker of the Advisor Board of National Organization
for Hydrogen and Fuel Cell Technology (NOW GmbH)
- Advisor for Batteries of the German Federal Ministry for Transport, Building and Urban Affairs
- Editorial Board Member of:
- Journal of Power Sources
- International Journal of Hydrogen Energy
- Fuel Cells – From Fundamentals to Systems
- Electrochemical Power Sources