The OPTIMAQ project of the CEA aims to reduce the reject rate in Li-ion cell formation — currently up to 50%, with a target of 5% — through a non-invasive quantum magnetic measurement system. This post-doctoral position covers both the software and experimental strands of the project: setting up the measurement bench (helium-4 optically pumped magnetometer, shielding, cell translation system) and developing a physics-informed 3D current density reconstruction algorithm (RBF-FD/PINN) to detect defects as early as the formation stage.
Hosted at CEA-LETI in Grenoble within the LSSC laboratory (sensor signal processing, reconstruction), in close collaboration with the L2EP/LAIC laboratories (battery system instrumentation, quantum magnetometry) at CEA-LETI and the LAPS/LMPS laboratories (Li-ion electrochemistry: experimental implementation and testing, modeling and simulation) at CEA-LITEN, this position is part of a 24-month project targeting TRL 3, with prospects for publications and patents.