Durability and Reliability of EV Batteries under Electric Utility Grid Operations: Impact of Frequency Regulation Usage on Cell Degradation

The usage of electric vehicle batteries to assist the main electric grid for the storage of energy provided by intermittent sources should become an essential tool to increase the penetration of green energies. However, this service induces additional usage on the cells and, therefore, could degrade...

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Main Authors: George Baure, Matthieu Dubarry
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/13/10/2494
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author George Baure
Matthieu Dubarry
author_facet George Baure
Matthieu Dubarry
author_sort George Baure
collection DOAJ
description The usage of electric vehicle batteries to assist the main electric grid for the storage of energy provided by intermittent sources should become an essential tool to increase the penetration of green energies. However, this service induces additional usage on the cells and, therefore, could degrade them further. Since degradation is path-dependent, it is of paramount importance to test the impact of all the different grid applications on the batteries. In this work, we tested the additional usage induced by using electric vehicle batteries for frequency regulation at moderate rates during rest or charge and found no detrimental effect after around 2000 cycles on the cells.
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spelling doaj.art-ddd5d67b09b4431bae5e5b3e6fa95ce22023-11-20T00:33:10ZengMDPI AGEnergies1996-10732020-05-011310249410.3390/en13102494Durability and Reliability of EV Batteries under Electric Utility Grid Operations: Impact of Frequency Regulation Usage on Cell DegradationGeorge Baure0Matthieu Dubarry1Hawai’i Natural Energy Institute, SOEST, University of Hawai’i at Mānoa, 1680 East-West Road, POST 109, Honolulu, HI 96822, USAHawai’i Natural Energy Institute, SOEST, University of Hawai’i at Mānoa, 1680 East-West Road, POST 109, Honolulu, HI 96822, USAThe usage of electric vehicle batteries to assist the main electric grid for the storage of energy provided by intermittent sources should become an essential tool to increase the penetration of green energies. However, this service induces additional usage on the cells and, therefore, could degrade them further. Since degradation is path-dependent, it is of paramount importance to test the impact of all the different grid applications on the batteries. In this work, we tested the additional usage induced by using electric vehicle batteries for frequency regulation at moderate rates during rest or charge and found no detrimental effect after around 2000 cycles on the cells.https://www.mdpi.com/1996-1073/13/10/2494lithium-iondQ/dVdV/dQfrequency regulationV2GG2V
spellingShingle George Baure
Matthieu Dubarry
Durability and Reliability of EV Batteries under Electric Utility Grid Operations: Impact of Frequency Regulation Usage on Cell Degradation
Energies
lithium-ion
dQ/dV
dV/dQ
frequency regulation
V2G
G2V
title Durability and Reliability of EV Batteries under Electric Utility Grid Operations: Impact of Frequency Regulation Usage on Cell Degradation
title_full Durability and Reliability of EV Batteries under Electric Utility Grid Operations: Impact of Frequency Regulation Usage on Cell Degradation
title_fullStr Durability and Reliability of EV Batteries under Electric Utility Grid Operations: Impact of Frequency Regulation Usage on Cell Degradation
title_full_unstemmed Durability and Reliability of EV Batteries under Electric Utility Grid Operations: Impact of Frequency Regulation Usage on Cell Degradation
title_short Durability and Reliability of EV Batteries under Electric Utility Grid Operations: Impact of Frequency Regulation Usage on Cell Degradation
title_sort durability and reliability of ev batteries under electric utility grid operations impact of frequency regulation usage on cell degradation
topic lithium-ion
dQ/dV
dV/dQ
frequency regulation
V2G
G2V
url https://www.mdpi.com/1996-1073/13/10/2494
work_keys_str_mv AT georgebaure durabilityandreliabilityofevbatteriesunderelectricutilitygridoperationsimpactoffrequencyregulationusageoncelldegradation
AT matthieudubarry durabilityandreliabilityofevbatteriesunderelectricutilitygridoperationsimpactoffrequencyregulationusageoncelldegradation