Static and Dynamic Aging Data for NMC Li-ion batteries over wide use range

This dataset presents the ageing data of several Nickel-Manganese-Cobalt battery cells. This work was aiming to have precise characterisations for several battery states, considering mainly states-of-health and states-of-charge. Three single cells were used as well as a two-cell module, in which they were assembled in parallel. The characterisations took the form of full discharge to evaluate battery capacity, as well as current pulses and electrochemical impedance spectroscopy for the dynamic behaviours. Between each characterization phase, stress was applied to the cells in the form of constant current charges and discharges, cycling for a few dozen times between each characterization. The tests lasted between 15 and 30 weeks, depending on the cells. They were done using a Zahner spectrometer for the spectroscopy part, and a CHROMA bench was used for the rest of the tasks.