1. University of Applied Sciences Esslingen; Department of Basic Science; Kanalstr. 33 73728 Esslingen Germany
2. Solvay Specialty Polymers; R&D Center; Viale Lombardia 20 20021 Bollate (MI) Italy
3. German Aerospace Center; Institute of Engineering Thermodynamics; Pfaffenwaldring 38-40 70569 Stuttgart Germany
4. University of Stuttgart; Institute of Energy Storage; Pfaffenwaldring 31 70569 Stuttgart Germany