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Title: Estimate long-term impact on battery degradation by considering electric vehicle real-world end-use factors

Abstract

Many estimates of battery capacity degradation are based on accelerated lab tests that involve charge-discharge cycles or rely on data or electrochemical modeling. These methods are reasonable for technology benchmarking but rarely consider real-world end-use factors. To address this issue, this study develops the Battery Run-down under Electric Vehicle Operation (BREVO) model. It links the driver's travel pattern to physics-based battery degradation and powertrain energy consumption models. The model simulates the impacts of charging behavior, charging rate, driving patterns, and multiple energy management modules on battery capacity degradation. It finds that, over a 10-year timespan, firstly, for a random driver situated in the New England area, daily direct-current fast charging (60 kW) could lead to up to 22% less battery capacity when compared to daily Level-1 charging (1.8 kW). Second, the battery thermal management system can delay battery degradation by approximately 0.5% in the New England area. Third, warmer ambient temperatures enhance BEV battery usage. The model indicates that the battery capacity in the Los Angeles area is 6% higher than that in the New England area. The BREVO model provides crucial information for consumers and BEV manufacturers on range anxiety, BEV battery design, and decision support of battery warranty.

Authors:
ORCiD logo [1]
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  1. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO); USDOE
OSTI Identifier:
1974320
Alternate Identifier(s):
OSTI ID: 1999863
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 573; Journal Issue: N/A; Journal ID: ISSN 0378-7753
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 25 ENERGY STORAGE; battery capacity degradation; driving patterns; electric vehicle; fast charging; powertrain energy consumption

Citation Formats

Ou, Shawn. Estimate long-term impact on battery degradation by considering electric vehicle real-world end-use factors. United States: N. p., 2023. Web. doi:10.1016/j.jpowsour.2023.233133.
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Ou, Shawn. Estimate long-term impact on battery degradation by considering electric vehicle real-world end-use factors. United States. https://doi.org/10.1016/j.jpowsour.2023.233133
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Ou, Shawn. Wed . "Estimate long-term impact on battery degradation by considering electric vehicle real-world end-use factors". United States. https://doi.org/10.1016/j.jpowsour.2023.233133.
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@article{osti_1974320,
title = {Estimate long-term impact on battery degradation by considering electric vehicle real-world end-use factors},
author = {Ou, Shawn},
abstractNote = {Many estimates of battery capacity degradation are based on accelerated lab tests that involve charge-discharge cycles or rely on data or electrochemical modeling. These methods are reasonable for technology benchmarking but rarely consider real-world end-use factors. To address this issue, this study develops the Battery Run-down under Electric Vehicle Operation (BREVO) model. It links the driver's travel pattern to physics-based battery degradation and powertrain energy consumption models. The model simulates the impacts of charging behavior, charging rate, driving patterns, and multiple energy management modules on battery capacity degradation. It finds that, over a 10-year timespan, firstly, for a random driver situated in the New England area, daily direct-current fast charging (60 kW) could lead to up to 22% less battery capacity when compared to daily Level-1 charging (1.8 kW). Second, the battery thermal management system can delay battery degradation by approximately 0.5% in the New England area. Third, warmer ambient temperatures enhance BEV battery usage. The model indicates that the battery capacity in the Los Angeles area is 6% higher than that in the New England area. The BREVO model provides crucial information for consumers and BEV manufacturers on range anxiety, BEV battery design, and decision support of battery warranty.},
doi = {10.1016/j.jpowsour.2023.233133},
journal = {Journal of Power Sources},
number = N/A,
volume = 573,
place = {United States},
year = {Wed May 10 00:00:00 EDT 2023},
month = {Wed May 10 00:00:00 EDT 2023}
}
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This content will become publicly available on May 10, 2024
Publisher's Version of Record
https://doi.org/10.1016/j.jpowsour.2023.233133
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