000K utf8 1100 2025$c2025-01-27 1500 eng 2051 10.57892/100-111 3000 Mattia, Luigi 3010 Beiranvand, Hamzeh 3010 Liserre, Marco 3010 Zamboni, Walter 4209 This includes a dataset for thermo-electrochemical impedance spectroscopy (T-EIS) of NCR18650B Li-ion batteries. It includes CCCV cycles and EIS experiments under multiple temperature and SoC conditions on four different Li-ion cells. The experiments were performed in the laboratories of Kiel University (CAU) within a cooperation with the University of Salerno (UNISA). 4950 https://doi.org/10.57892/100-111$xR$3Volltext$534 4961 https://opendata.uni-kiel.de/receive/fdr_mods_00000111 5051 621.3