1. Institute of Electrochemistry Ulm University Albert-Einstein-Allee 47 89081 Ulm Germany
2. Helmholtz-Institute Ulm (HIU) for Electrochemical Energy Storage Helmholtzstr. 11 89081 Ulm Germany
3. Karlsruhe Institute of Technology (KIT) P.O. Box 3640 76021 Karlsruhe Germany
4. Department of Mechanical and Nuclear Engineering Pennsylvania State University University Park PA 16801 USA