Student for thesis: Experimental method development for determining the diffusion coefficient in lithium-ion batteries

Life is always about becoming... In life it is about going on a journey to become the best version of our future self. As we discover new things, we face challenges, master them and grow beyond us.

Apply to Mercedes-Benz and find the area where you can develop your talents individually. You will be supported by visionary colleagues who share your pioneering spirit. Joining us means becoming part of a global team whose goal is to build the most desirable cars in the world. Together for excellence.

Number: MER0003USO In Group Research & Development (RD), we design the automotive generations of the future. We mean innovative products with the highest quality and efficient development processes. We are already working on vehicles that will secure the technology leadership of Mercedes-Benz in the future. Our department is responsible for research on future electric drives in the field of Mercedes-Benz AG. In the team ''Cell Material Analytics' at Untertürkheim, special analysis methods are developed to characterize the chemical/physical effects occurring in battery cells. One focus is on the transport parameters of electrolytes, among other things for parameterizing physical cell models. As part of this final work, a contribution will be made to the further development of experimental methods for characterizing lithium-ion batteries. The focus is on the precise determination of the electrochemical diffusion coefficient, a central parameter for understanding and modeling electrolytic transport processes. Various measurement methods are investigated which enable a quantitative analysis of this parameter. The aim is to develop, test and evaluate experimental approaches to the determination of the diffusion coefficient and with regard to their accuracy. In this case, systematic measurement series are carried out on laboratory cells in which materials and electrolyte formulations are varied in a targeted manner. The results are intended to contribute to the further development of physically sound cell models and provide new insights into the interaction between cell components and electrochemical transport processes. These challenges come to you: Construction and testing of electrochemical cells in laboratory scale

Conducting systematic measurement series with varying cell components

Analysis and interpretation of electrochemical data

Comparison and evaluation of different methods for parameterization

Documentation of measurement results and preparation of evaluation scripts

The final topics will be discussed with the university, you and us. The activity can start from January 2026.

Immatriculated in Bachelor or Master studies in Engineering or Natural Sciences First knowledge of lithium-ion cells or electrolytes for high-voltage batteries is desirable

Precise, careful and conscientious working style

Embossed team and communication skills as well as independent working

Secure knowledge of German in word and writing

Programming experience with Python

Additional information: We are looking forward to your online application with CV, lettering, certificates, current enrollment certificate with an indication of the semester and proof of the regular study period. Please do not forget to mark your documents as ''relevant for this application' in the online form and to observe the maximum file size of 5 MB. Further information on the setting criteria can be found here. Disabled and equalized applicants are welcome! The severely disabled representative (SBV-Untertuerkheim@mercedes-benz.com) is happy to support you in the application process. HR Services will be happy to help you with questions about the application process. You can reach us by email via myhrservice@mercedes-benz.com or by phone at 0711/17-99000 (Mo-Fr 10-12am & 13-15am).

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