Engineering
2 years ago

Electric Vehicles Could Lose 10% Battery Capacity Over Lifetime

Energies
Effect of WLTP CLASS 3B Driving Cycle on Lithium-Ion Battery for Electric Vehicles
Salvatore Micari, S. Foti, A. Testa, S. De, Francesco Sergi, L. Andaloro, Davide Aloisio, Salvatore Gianluca Leonardi, G. Napoli

Paper Summary

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The study looked at how driving cycles affect lithium-ion batteries in electric vehicles. They tested a specific battery type and found it lost up to 10% of its capacity in a certain driving cycle. The battery had a cathode made of LMO-NMC and an anode made of graphite. They noticed changes in internal impedance and used IC and DV analysis to study the battery's health. A model was created to predict how much capacity the battery would lose over time due to cycling and calendar ageing.