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Mathematical model for combined effect of SEI formation and gas evolution in Li-ion batteries
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Rashid, Muhammad and Gupta, A. (2014) Mathematical model for combined effect of SEI formation and gas evolution in Li-ion batteries. ECS Electrochemistry Letters, 3 (10). A95-A98. doi:10.1149/2.0041410eel ISSN 2162-8726.
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WRAP-mathematical-model-combined-gas-evolution-batteries-Rashid-2014.pdf - Accepted Version - Requires a PDF viewer. Download (725Kb) | Preview |
Official URL: http://dx.doi.org/10.1149/2.0041410eel
Abstract
In this study, a mathematical model to investigate the combined effect of SEI film formation and gas evolution over the degradation of Li-ion cells is developed. A Li-ion cell is simulated for three discharge/charge rates until 80% of the rated capacity is irreversibly lost in side reactions. The model shows that the thickness of SEI film and volume of gases evolved is between 0.03–0.22 μm and 1.6–10.6%, respectively. It is shown that, in addition to greater diffusion limitations, capacity degradation at higher cycling rates is faster due to reduction in cyclable lithium caused by its accumulation in the negative electrode.
Item Type: | Journal Article | ||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
Library of Congress Subject Headings (LCSH): | Lithium ion batteries | ||||||
Journal or Publication Title: | ECS Electrochemistry Letters | ||||||
Publisher: | Electrochemical Society, Inc. | ||||||
ISSN: | 2162-8726 | ||||||
Official Date: | 6 August 2014 | ||||||
Dates: |
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Volume: | 3 | ||||||
Number: | 10 | ||||||
Page Range: | A95-A98 | ||||||
DOI: | 10.1149/2.0041410eel | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Date of first compliant deposit: | 31 January 2018 | ||||||
Date of first compliant Open Access: | 31 January 2018 |
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