LITHIUM-ION CELLS SAFETY ASSESSMENT

Lithium-Ion Batteries (LIBs) are widely used in a variety of applications because they are able to store a lot of energy and last a long time. To ensure optimal performance and safety, it’s essential to implement measures that prevent overheating, overcharging, or internal short circuit in these batteries. Thermal Runaway (TR) represents the most dangerous unwanted event that leads to the cell damage with the possible development of fire, explosion and the releasing of toxic gases. Possible causes of TR are mechanical, electrical and thermal failures.The hazard associated with TR can be investigated with the Accelerating Rate Calorimeter (ARC), able to simulate adiabatic conditions with the aim to study the heat eleased during the abuse tests. In this work, several aged commercial cylindrical cells were characterized following a specific galvanostatic cycling procedure.