Work environment

Would you like to help design the processes involved in prototype and series process development? Then join our team at the Battery Technology Center in Braunschweig. The Battery Technology Center is responsible for transferring the latest process developments into prototype and series production. Our sub-department verifies the suitability of concepts and series production. Existing equipment and corresponding test technology and planning enable the necessary process parameters to be determined. A key technology is the laser welding process for contacting battery cells to produce a battery stack. The determination of weld seam geometry and the definition of parameters depend on many influencing factors. A systematic analysis and derivation of the interrelationships has not yet been developed, thus revealing a scientific gap.

Possible Tasks within this Role

• Systematically selecting and designing laser welding technologies in the battery environment
• Developing a methodology for designing weld seams based on requirements and enabling the transferability of results to other geometries and material alloys
• Optimizing seam geometry through modeling and optionally integrating AI methods
• Establishing correlations, such as between bonding area and strength requirements of laser weld seams in battery stacks
• Considering FEM analysis of material behavior

The final doctoral topic is defined together with the professor. The prerequisite for the cooperation is the confirmation of supervision as well as a confirmed delimitation of topics by the professor of a university or research institution entitled to confer a doctorate.

Qualification requirements

• Good to very good university degree qualifying for doctoral studies in mechanical engineering, automotive engineering, physics, or a comparable qualification
• Knowledge and experience in the field of laser welding technology (specifically: aluminum alloys), optionally laser welding expert or welding engineer
• Materials expertise in the field of metallurgy, ideally welding or solidification processes
• Knowledge of finite element modeling and phase field modeling
• Knowledge of statistical experimental validation methods and test execution
• Outstanding initiative, ability to work in a team, and structured approach to work
• Outstanding communication and presentation skills
• English language level B2 and German language level C1

Keywords

Dissertation, materials engineering, artificial intelligence, experimental test planning/method planning, laser beam welding, remote technology