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Full ceramic SOFC concept for cost-efficient μ-CHPs: long-term behavior, degradation mechanisms, material and process optimization


·  Robert Bosch GmbH

·  Karlsruher Institut für Technologie (KIT), Institut für Angewandte Materialien -
  Werkstoffe der Elektrotechnik (IAM-WET) 

·  Karlsruher Institut für Technologie (KIT),
  Laboratorium für Elektronenmikroskopie (LEM)

·  Hochschule Karlsruhe (HsKA), Institute of Materials and Processes (IMP)

·  Hochschule Aalen (HSAA), Institut für Materialforschung (IMFAA)   


Within the framework of KerSOLife100, a consortium of industrial and scientific partners is researching an innovative, promising, fully ceramic SOFC cell concept for cost-efficient μCHP, which has a high potential to meet future market requirements regarding lifetime and costs. In this concept, low-cost materials previously not used for SOFC are to be used in combination with novel process technologies. Therefore, there is a considerable risk that hitherto unknown aging phenomena and damage occur. These must be mastered in order to successfully place such systems on the market. The investigation of the degradation mechanisms and understanding-based remedial measures at the material, construction and manufacturing technology as well as the operational strategy are therefore of vital importance from an economic point of view - and scientifically of great interest. This also includes the development of a knowledge-based accelerated testing procedure in order to safely evaluate the optimization of materials and specific process technologies and to ensure the required service life.