Host institution:
Technische Universität Braunschweig, elenia Institute for High Voltage Technology and Power Systems
Supervision:
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
PhD candidate:
Anna Rollin, elenia Institut for High Voltage Technology and Power Systems of TU Braunschweig, anna.rollin(at)tu-braunschweig.de
Project introduction:
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.
Specific objectives:
Expected outcome:
Development of formation strategies depending on the degree of contamination
Assessment of the electrochemical and chemical effects of contaminants on the battery cell
Model-based evaluation of cell quality as a function of the State of Health