Traction battery systems in mobility applications today are built primarily from lithium-ion battery cells. Driven by the expected growth of the electrified vehicle market and the requirements for better performance, numerous next-generation battery technologies are being intensively researched. 
Each of these potential cell chemistries requires a new cell design and thus influencing the integration of the cells into higher levels. Considering future-oriented product development, it is crucial to clarify the advancement of battery technologies as well as the associated opportunities and risks for developing mobility systems.  An initial methodological framework – Cross-Level Impact Analysis (CLIA) Approach – was proposed for systematically modelling dependencies within the battery system and tracing property changes across (sub)systems.

Tasks

Building on the CLIA Approach, this thesis aims to bridge the gap between parameter changes (e.g. switching cathode material) and interpretable system-level consequences (e.g. reduced weight), supported by rule-based logic or simulation. For interdependencies between properties, this work explores parametric evaluation of physical relationships and linkage with existing simulation models (e.g., mechanical/thermal) within the MBSE framework beyond literature-based or expert-driven methods:

• Analyze and refine the existing CLIA method and its application, this might include:
• Identify key relationships between parameter-level changes and system-level design metrics 
• Enhance the Relevance of Interaction evaluation (e.g. by adapting membership function). 
• Explore parametric and simulation-based options to model physical property dependencies.
• Propose an improved interpretation layer from CLIA outputs to design boundary conditions.
• Apply the refined method to representative use cases (e.g. silicon-based anode replacing graphite) to evaluate the design impacts.

Profile

• Study of mechanical engineering / Industrial Engineering and Management / materials science / mechatronics 
• Interest in battery system technology, know-how in the field of battery (cells) preferred
• previous experience in modelling and simulation in the field of battery system preferred
• previous experience with Systems Engineering helpful
• Independent, structured way of working and analytical thinking 

If you are interested, please submit a sound application with a current transcript of grades and curriculum vitae to: yunying zeng ∂does-not-exist.kit edu