1. Institute for Physical Chemistry and Center for Soft Nanoscience (SoN), University of Münster, Corrensstraße 28-30, 48149 Münster, Germany
2. Polymer materials for energy storage (PES), Bavarian Centre for Battery Technology (BayBatt) and Bavarian Polymer Institute (BPI), University of Bayreuth, Universitätsstr. 30, 95448 Bayreuth, Germany