Under CopyrightPitta Bauermann, LucianaLucianaPitta Bauermann2024-10-252024-10-252024Note-ID: 00009DA6https://publica.fraunhofer.de/handle/publica/477980https://doi.org/10.24406/h-47798010.24406/h-477980An apparatus and method for non-contact and spatially resolved measurement of thickness changes in compressed flat lithium-ion battery cells during cycling is presented. This approach can be applied to end-of-line quality control in manufacturing battery cells. The large amount of measured data generated is used in machine-learning models to quickly and unambiguously evaluate the quality of the battery cell.enflat battery cellsquality controlthickness changespresentation