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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
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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 | ||||||
|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||
| Divisions: | Faculty of Science > 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 |
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