Data of safety investigation and thermal abuse behavior of commercial type 21700 LIB cells is provided. It has been acquired with Accelerating Rate Calorimetry (ARC), using a Thermal Hazard Technology type ES ARC. Moreover, thermal abuse was done by means of the so-called Heat-Wait-Seek (HWS) test, at different states of charge (SOC) from 0 to 100. Different cathode chemistries are compared (NMC, NCA and LFP), as well as for NCA chemistry, the high energy (HE) and high power (HP) cell design. For each cell, data includes the exothermal behavior of the cells, which is recorded only when the cell is behaving exothermally in the ARC, above a threshold of 0.02 °C / min. Hence, in the files, time in minutes, temperature on the surface at the center of the cell in °C and the registered temperature rate in °C / min is provided. Cathode chemistry, as well as SOC, is indicated in the file name, each set of parameters has been tested at least twice with another cell, which is indicated with M and consecutive numbering of the test number. This data is supporting this article in the journal Batteries: https://doi.org/10.3390/batteries9050237 Additional supporting material to this article are the maximum temperatures for thermal abuse, that are published here: https://doi.org/10.5281/zenodo.7867730

{"references": ["https://doi.org/10.3390/batteries9050237"]}