1. Institute for Inorganic and Analytical Chemistry, University of Münster, Corrensstrasse 30, D-48149 Münster, Germany
2. BMW AG, Battery Cell Technology, Lemgostr. 7, D-80935 Munich, Germany
3. Institut für Energie- und Klimaforschung (IEK), IEK-12: Helmholtz-Institut Münster, Forschungszentrum Jülich, 48149 Münster, Germany