Institute for Electrical Energy Storage Technology of TU Munich, Fraunhofer Institute for Silicate Research & TÜV SÜD Battery Testing GmbH
Lithium-ion batteries are increasingly used in mobile applications where mechanical vibrations and
shocks are a constant companion. This work shows how these mechanical loads affect lithium-ion
cells. Therefore pouch and cylindrical cells are stressed with vibrational and shock profiles according to the UN 38.3 standard. Additionally, a vibration test is set up to reflect stress in real-world applications and is carried out for 186 days. The effects of the load profiles on the tested cells are investigated by capacity measurement, impedance spectroscopy, micro-X-ray computed tomography and post mortem analyses.