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Prediction of battery storage ageing and solid electrolyte interphase property estimation using an electrochemical model
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Rajan, Ashwin T., Barai, Anup, Uddin, Kotub, Somerville, Limhi, McGordon, Andrew and Marco, James (2018) Prediction of battery storage ageing and solid electrolyte interphase property estimation using an electrochemical model. Journal of Power Sources, 385 . pp. 141-147. doi:10.1016/j.jpowsour.2018.03.010 ISSN 0378-7753.
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Official URL: https://doi.org/10.1016/j.jpowsour.2018.03.010
Abstract
Ageing prediction is often complicated due to the interdependency of ageing mechanisms. Research has highlighted that storage ageing is not linear with time. Capacity loss due to storing the battery at constant temperature can shed more light on parametrising the properties of the Solid Electrolyte Interphase (SEI); the identification of which, using an electrochemical model, is systematically addressed in this work. A new methodology is proposed where any one of the available storage ageing datasets can be used to find the property of the SEI layer. A sensitivity study is performed with different molecular mass and densities which are key parameters in modelling the thickness of the SEI deposit. The conductivity is adjusted to fine tune the rate of capacity fade to match experimental results. A correlation is fitted for the side reaction variation to capture the storage ageing in the 0%–100% SoC range. The methodology presented in this paper can be used to predict the unknown properties of the SEI layer which is difficult to measure experimentally. The simulation and experimental results show that the storage ageing model shows good accuracy for the cases at 50% and 90% and an acceptable agreement at 20% SoC.
Item Type: | Journal Article | |||||||||
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Subjects: | 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): | Lithium ion batteries, Electric vehicles | |||||||||
Journal or Publication Title: | Journal of Power Sources | |||||||||
Publisher: | Elsevier S.A. | |||||||||
ISSN: | 0378-7753 | |||||||||
Official Date: | 1 May 2018 | |||||||||
Dates: |
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Volume: | 385 | |||||||||
Page Range: | pp. 141-147 | |||||||||
DOI: | 10.1016/j.jpowsour.2018.03.010 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||
Date of first compliant deposit: | 23 March 2018 | |||||||||
Date of first compliant Open Access: | 23 March 2018 | |||||||||
RIOXX Funder/Project Grant: |
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