Technische Universität Braunschweig, elenia Institute for High Voltage Technology and Power Systems
First supervisor: Prof. Dr.-Ing. Michael Kurrat, elenia Institut for High Voltage Technology and Power Systems of TU Braunschweig, m.kurrat(at)tu-braunschweig.de
Second supervisor: Prof. Dr. Petr. Novák, Institute for Energy and Systems Process Engineering of TU Braunschweig
Anna Rollin, elenia Institut for High Voltage Technology and Power Systems of TU Braunschweig, a.rollin(at)tu-braunschweig.de
The project addresses the formation, aging and characterization of battery cells of recycled materials. During the formation process, boundary layers are formed on the electrode surface whose composition and morphology depend on the process parameters. These layers significantly influence the cells, e.g. energy content, lifetime and safety behavior. Especially with recycled and thus cross-contaminated materials, even small impurities can lead to different layer properties. With appropriate characterization methods, battery cells can be characterized after formation and during aging, and models can be derived to predict the state of health.