PhD Position: Study of Mechanical Stress on Solid State Micro-batteries

This PhD position at CEA-Leti, within the Université Grenoble Alpes, focuses on the mechanical performance of solid-state micro-batteries. The research aims to understand how mechanical stresses influence battery behavior during charge and discharge cycles, which is critical for applications in IoT and medical implants. The successful candidate will develop experimental test benches to apply pressure and measure deformations, while simultaneously building a mechanical model. This work will ultimately contribute to the design of new layers to enhance the mechanical durability of micro-storage technologies.

• Design and develop mechanical test benches to apply variable pressure to micro-batteries.
• Develop and implement equipment for precise pressure measurement during cycling.
• Conduct experimental characterizations, including measuring anode deformations.
• Develop a mechanical model to simulate battery behavior under stress.
• Refine the mechanical model using experimental data to determine material properties.
• Propose and evaluate new layer integrations to improve mechanical performance.