1. Institute of Engineering Thermodynamics
2. German Aerospace Center (DLR)
3. 70569 Stuttgart
4. Germany
5. MINES ParisTech
6. PSL Research University
7. PERSEE-Centre procédés énergies renouvelables et systems énergétiques
8. 06904 Sophia-Antipolis Cedex
9. France
10. Group of Electron Microscopy of Materials Science
11. Central Facility for Electron Microscopy
12. University of Ulm
13. 89081 Ulm
14. University of Applied Sciences Esslingen
15. Dep. of Basic Science
16. Esslingen
17. Institute of Energy Storage