1. Battery and Electrochemistry Laboratory (BELLA)Institute of NanotechnologyKarlsruhe Institute for Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
2. BASF SE 67056 Ludwigshafen Germany
3. Institute of Physical Chemistry &, Center for Materials Science (ZfM/LaMa)Justus-Liebig-University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany