1. Institute for Power Electronics and Electrical Drives (ISEA) RWTH Aachen University 52074 Aachen Germany
2. Institute for Power Generation and Storage Systems (PGS) E.ON ERC RWTH Aachen University 52074 Aachen Germany
3. Jülich Aachen Research Alliance JARA-Energy 52056 Aachen
4. 52425 Jülich Germany
5. Forschungszentrum Jülich GmbH Institute of Energy and Climate Research Helmholtz-Institute Münster: Ionics in Energy Storage (IEK-12)) 52425 Jülich Germany