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A study of reduced battery degradation through state-of-charge pre-conditioning for vehicle-to-grid operations
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Bui, Truong Minh Ngoc, Sheikh, Muhammad, Dinh, Quang Truong, Gupta, Aniruddha, Widanage, Widanalage Dhammika and Marco, James (2021) A study of reduced battery degradation through state-of-charge pre-conditioning for vehicle-to-grid operations. IEEE Access, 9 . 155871 -155896. doi:10.1109/ACCESS.2021.3128774 ISSN 2169-3536.
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Official URL: https://doi.org/10.1109/ACCESS.2021.3128774
Abstract
Transport electrification is a key enabler to reduce fossil fuel depletion and related carbon dioxide emissions. However, critical barriers exist in terms of battery costs and their expected life. Vehicle-to-grid technology can bring benefits to both the electrical power grid and electric vehicle owners, while its practical implementation faces challenges due to the concerns over accelerated battery degradation. This paper presents a comprehensive study on reduced Lithium-ion battery degradation through state-of-charge pre-conditioning strategies that allow an electric vehicle to participate in vehicle-to-grid operations during periods in which the vehicle is parked. Energy capacity reduction of the electric vehicle battery are predicted using semi-empirical ageing models, which have been built and validated to capture the degradation behaviours of the battery with respect to both calendar and cycling ageing. Five charging strategies for battery state-of-charge pre-conditioning have been developed to evaluate the ability to mitigate battery ageing before commencing vehicle-to-grid operations. Simulation studies on battery degradation utilizing such charging mechanisms under two different operational profiles have been undertaken. The analytical results show that the proposed charging strategies do not accelerate battery degradation and are capable of mitigating the total ageing process from 7.3 – 26.7% for the first 100 days of operational life and gradually vary to 8.6 – 12.3% for one-year continual operation compared to the reference standard charging approach.
| Item Type: | Journal Article | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TE Highway engineering. Roads and pavements T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TL Motor vehicles. Aeronautics. Astronautics |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | |||||||||
| Library of Congress Subject Headings (LCSH): | Electric vehicles, Electric vehicles -- Batteries, Lithium ion batteries -- Biodegradation, Battery management systems , Battery charging stations (Electric vehicles) , Battery chargers | |||||||||
| Journal or Publication Title: | IEEE Access | |||||||||
| Publisher: | IEEE | |||||||||
| ISSN: | 2169-3536 | |||||||||
| Official Date: | 16 November 2021 | |||||||||
| Dates: |
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| Volume: | 9 | |||||||||
| Page Range: | 155871 -155896 | |||||||||
| DOI: | 10.1109/ACCESS.2021.3128774 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Open Access (Creative Commons) | |||||||||
| Copyright Holders: | Truong M N Bui, Muhammad Sheikh, Truong Q. Dinh, Aniruddha Gupta, Dhammika W. Widanalage, James Marco | |||||||||
| Date of first compliant deposit: | 19 November 2021 | |||||||||
| Date of first compliant Open Access: | 19 November 2021 | |||||||||
| RIOXX Funder/Project Grant: |
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