Experimental Investigation of Fast−Charging Effect on Aging of Electric Vehicle Li−Ion Batteries
A huge increase in fast−charging stations will be necessary for the transition to EVs. Nevertheless, charging a battery pack at a higher C−rate impacts its state of health, accelerating its degradation. The present paper proposes a different and innovative approach that considers the daily routine o...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/18/6673 |
| _version_ | 1827726307336650752 |
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| author | Dario Pelosi Michela Longo Dario Zaninelli Linda Barelli |
| author_facet | Dario Pelosi Michela Longo Dario Zaninelli Linda Barelli |
| author_sort | Dario Pelosi |
| collection | DOAJ |
| description | A huge increase in fast−charging stations will be necessary for the transition to EVs. Nevertheless, charging a battery pack at a higher C−rate impacts its state of health, accelerating its degradation. The present paper proposes a different and innovative approach that considers the daily routine of an EV Li−ion battery based on a standard driving cycle, including charging phases when the depth of discharge is 90%. Through dynamic modeling of the EV battery system, the state of charge evolution is determined for different charging C−rates, considering both real discharging and charging current profiles. Finally, by applying a suitable post−processing procedure, aging test features are defined, each being related to a specific EV battery working mode, including charging at a particular C−rate, considering the global battery operation during its lifespan. It is demonstrated that, according to the implemented procedure, fast−charging cycles at 50 kW reduce battery lifespan by about 17% with respect to charge in a 22 kW three−phase AC column, in parity with the discharge rate. Thus, this work can provide a deep insight into the expected massive penetration of electric vehicles, providing an estimate of battery useful life based on charging conditions. |
| first_indexed | 2024-03-10T22:49:10Z |
| format | Article |
| id | doaj.art-5a9d5470007748a28384f55f07e5a05c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T22:49:10Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-5a9d5470007748a28384f55f07e5a05c2023-11-19T10:28:29ZengMDPI AGEnergies1996-10732023-09-011618667310.3390/en16186673Experimental Investigation of Fast−Charging Effect on Aging of Electric Vehicle Li−Ion BatteriesDario Pelosi0Michela Longo1Dario Zaninelli2Linda Barelli3Department of Engineering, University of Perugia, 06125 Perugia, ItalyDepartment of Energy, Politecnico di Milano, 20156 Milan, ItalyDepartment of Energy, Politecnico di Milano, 20156 Milan, ItalyDepartment of Engineering, University of Perugia, 06125 Perugia, ItalyA huge increase in fast−charging stations will be necessary for the transition to EVs. Nevertheless, charging a battery pack at a higher C−rate impacts its state of health, accelerating its degradation. The present paper proposes a different and innovative approach that considers the daily routine of an EV Li−ion battery based on a standard driving cycle, including charging phases when the depth of discharge is 90%. Through dynamic modeling of the EV battery system, the state of charge evolution is determined for different charging C−rates, considering both real discharging and charging current profiles. Finally, by applying a suitable post−processing procedure, aging test features are defined, each being related to a specific EV battery working mode, including charging at a particular C−rate, considering the global battery operation during its lifespan. It is demonstrated that, according to the implemented procedure, fast−charging cycles at 50 kW reduce battery lifespan by about 17% with respect to charge in a 22 kW three−phase AC column, in parity with the discharge rate. Thus, this work can provide a deep insight into the expected massive penetration of electric vehicles, providing an estimate of battery useful life based on charging conditions.https://www.mdpi.com/1996-1073/16/18/6673battery agingdynamic modelingelectric vehiclesLi−ion batteryrainflow cycle counting algorithm |
| spellingShingle | Dario Pelosi Michela Longo Dario Zaninelli Linda Barelli Experimental Investigation of Fast−Charging Effect on Aging of Electric Vehicle Li−Ion Batteries Energies battery aging dynamic modeling electric vehicles Li−ion battery rainflow cycle counting algorithm |
| title | Experimental Investigation of Fast−Charging Effect on Aging of Electric Vehicle Li−Ion Batteries |
| title_full | Experimental Investigation of Fast−Charging Effect on Aging of Electric Vehicle Li−Ion Batteries |
| title_fullStr | Experimental Investigation of Fast−Charging Effect on Aging of Electric Vehicle Li−Ion Batteries |
| title_full_unstemmed | Experimental Investigation of Fast−Charging Effect on Aging of Electric Vehicle Li−Ion Batteries |
| title_short | Experimental Investigation of Fast−Charging Effect on Aging of Electric Vehicle Li−Ion Batteries |
| title_sort | experimental investigation of fast charging effect on aging of electric vehicle li ion batteries |
| topic | battery aging dynamic modeling electric vehicles Li−ion battery rainflow cycle counting algorithm |
| url | https://www.mdpi.com/1996-1073/16/18/6673 |
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