1. Institute of Energy and Climate Research: Materials Synthesis and Processing (IEK-1) Forschungszentrum Jülich GmbH 52425 Jülich Germany
2. Institute for Power Electronics and Electrical Drives (ISEA) RWTH Aachen University 52066 Aachen Germany
3. Department of Chemistry for Materials, Graduate School of Engineering Mie University Tsu, Mie 514-8507 Japan
4. Helmholtz Institute Münster: Ionics in Energy Storage (HI-MS) Forschungszentrum Jülich GmbH 48149 Münster Germany