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Methodology for developing a macro finite element model of lithium‐ion pouch cells for predicting mechanical behaviour under multiple loading conditions
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Beaumont, Richard Adrian, Masters, Iain, Das, Abhishek, Lucas, Steve, Thanikachalam, Arunn and Williams, D. K. (2021) Methodology for developing a macro finite element model of lithium‐ion pouch cells for predicting mechanical behaviour under multiple loading conditions. Energies, 14 (7). 1921. doi:10.3390/en14071921
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WRAP-methodology-developing-macro-finite-element-model-lithium‐ion-pouch-cells-predicting-mechanical-behaviour-under-multiple-loading-conditions-2021.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (5Mb) | Preview |
Official URL: https://doi.org/10.3390/en14071921
Abstract
To assist in light weighting of electric vehicles by improving the volumetric and gravimetric energy density and the structural performance of the battery pack, a modelling methodology based on a macro finite element model of a pouch cell has been developed. This model treats the core cell structure as a homogeneous orthotropic honeycomb block with the pouch material being defined as an orthotropic fabric with compressive stress elimination. The model considers five compression and bending load cases simultaneously and allows a level of element discretisation that is computationally efficient and appropriate for inclusion in full vehicle and sub‐system simulations. The methodology is scalable in that it can be applied to a range of chemistries, external geometries and internal cell constructions. When considering stacks of cells, the model is predictive for both lateral compression and three‐point bend, but further work is required to improve the confined compression response.
| Item Type: | Journal Article | |||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TS Manufactures |
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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 -- Batteries , Lithium ion batteries -- Storage, Lithium ion batteries -- Design and construction, Lithium ion batteries -- Mathematical models, Finite element method | |||||||||
| Journal or Publication Title: | Energies | |||||||||
| Publisher: | MDPI | |||||||||
| Official Date: | 30 March 2021 | |||||||||
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| Volume: | 14 | |||||||||
| Number: | 7 | |||||||||
| Article Number: | 1921 | |||||||||
| DOI: | 10.3390/en14071921 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Open Access (Creative Commons) | |||||||||
| Date of first compliant deposit: | 7 June 2021 | |||||||||
| Date of first compliant Open Access: | 8 June 2021 | |||||||||
| RIOXX Funder/Project Grant: |
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