Head: Dr. rer.nat. Günter Schiller
Fuel cells convert chemical energy into electrical energy with high efficiency. Due to their high operating temperature of 700-900 °C solid oxide fuel cells (SOFC) exhibit efficiencies exceeding 50% which can be further enhanced in hybrid systems, e.g. in combination with a gas turbine. Due to their low sensitivity towards fuels from fossil energy sources and their tolerance against impurities, solid oxide fuel cells are highly suited for the use of hydrocarbons for auxiliary power units (APU) as well as for stationary applications. The research group’s work is dedicated to the development of cost-efficient SOFC stacks with high performance and high durability based on metal supported cells. For cell fabrication different coating technologies, e.g. thermal deposition and wet powder deposition technologies, are applied. The detailed electrochemical and structural characterisation of cells and stacks as well as the development and use of spatially resolved analytical methods for investigating degradation processes is a focal point of our scientific work.
Development work concentrates on:
Numerous test facilities are available in the institute which are applied for the research work but also for external customers:
Plasma spray and wet powder deposition facilities for the fabrication of functional layers using powders and suspensions
Test benches for SOFC stacks including impedance spectroscopy