Electro-Thermal Aging Model of Li -Ion Batteries for Vehicle-to-Grid Services

The growing of Electrical Vehicles (EVs) opens new possibilities in the use of the vehicles Li-Ion batteries in order to provide ancillary grid services during the charging phase. Even if this is an interesting opportunity, the additional charging/discharging cycles necessary to provide these services could decrease the expected life of EV batteries. For this reason, a reliable model of the battery aging phenomena is necessary to evaluate the best charging/discharging strategy and the economic revenues. This paper proposes an Electro-Thermal Aging Model of Li-Ion NMC batteries in order to evaluate Vehicle to Grid (V2G) Services. Some different V2G scenarios are simulated and analysed.