Three-dimensional discrete element simulation of electrode structural evolution in lithium-ion batteries during drying and calendering
The drying and calendering processes are critical in the manufacture of electrodes for lithium-ion batteries, and have a profound effect on their mechanical and electrochemical properties. In this study, we developed a three-dimensional representative volume element (RVE) model of electrodes, which...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-04-01
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| Series: | International Journal of Electrical Power & Energy Systems |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142061525000729 |
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| author | Yuhang Lyu Shaohai Dong Li Ting Gao Zhan-Sheng Guo |
| author_facet | Yuhang Lyu Shaohai Dong Li Ting Gao Zhan-Sheng Guo |
| author_sort | Yuhang Lyu |
| collection | DOAJ |
| description | The drying and calendering processes are critical in the manufacture of electrodes for lithium-ion batteries, and have a profound effect on their mechanical and electrochemical properties. In this study, we developed a three-dimensional representative volume element (RVE) model of electrodes, which includes the active material, carbon binder domain, solvent, and particle contacts. Utilizing the discrete element method (DEM), we continuously simulated the structural evolution of the RVE during the drying and calendering processes. Our simulations revealed a three-stage drying scheme consistent with experimental observations, demonstrating the accuracy of our DEM-based approach. Furthermore, we found that the calendering process significantly enhances the mechanical integrity and electronic conductivity of the electrodes, with peak stresses occurring in the thickness direction. This research underscores the potential of DEM in elucidating electrode heterogeneity during manufacturing processes and highlights the innovative use of this method in the field of battery science. |
| format | Article |
| id | doaj-art-952b8ce7bd5d4de5a0ac517c3a24c6e4 |
| institution | Kabale University |
| issn | 0142-0615 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-952b8ce7bd5d4de5a0ac517c3a24c6e42025-02-10T04:33:28ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152025-04-01165110521Three-dimensional discrete element simulation of electrode structural evolution in lithium-ion batteries during drying and calenderingYuhang Lyu0Shaohai Dong1Li Ting Gao2Zhan-Sheng Guo3Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai University, Shanghai 200072, ChinaShanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai University, Shanghai 200072, ChinaShanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai University, Shanghai 200072, ChinaCorresponding author.; Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai University, Shanghai 200072, ChinaThe drying and calendering processes are critical in the manufacture of electrodes for lithium-ion batteries, and have a profound effect on their mechanical and electrochemical properties. In this study, we developed a three-dimensional representative volume element (RVE) model of electrodes, which includes the active material, carbon binder domain, solvent, and particle contacts. Utilizing the discrete element method (DEM), we continuously simulated the structural evolution of the RVE during the drying and calendering processes. Our simulations revealed a three-stage drying scheme consistent with experimental observations, demonstrating the accuracy of our DEM-based approach. Furthermore, we found that the calendering process significantly enhances the mechanical integrity and electronic conductivity of the electrodes, with peak stresses occurring in the thickness direction. This research underscores the potential of DEM in elucidating electrode heterogeneity during manufacturing processes and highlights the innovative use of this method in the field of battery science.http://www.sciencedirect.com/science/article/pii/S0142061525000729Discrete element methodElectrode slurryDryingCalenderingStructural evolutionRepresentative volume element |
| spellingShingle | Yuhang Lyu Shaohai Dong Li Ting Gao Zhan-Sheng Guo Three-dimensional discrete element simulation of electrode structural evolution in lithium-ion batteries during drying and calendering International Journal of Electrical Power & Energy Systems Discrete element method Electrode slurry Drying Calendering Structural evolution Representative volume element |
| title | Three-dimensional discrete element simulation of electrode structural evolution in lithium-ion batteries during drying and calendering |
| title_full | Three-dimensional discrete element simulation of electrode structural evolution in lithium-ion batteries during drying and calendering |
| title_fullStr | Three-dimensional discrete element simulation of electrode structural evolution in lithium-ion batteries during drying and calendering |
| title_full_unstemmed | Three-dimensional discrete element simulation of electrode structural evolution in lithium-ion batteries during drying and calendering |
| title_short | Three-dimensional discrete element simulation of electrode structural evolution in lithium-ion batteries during drying and calendering |
| title_sort | three dimensional discrete element simulation of electrode structural evolution in lithium ion batteries during drying and calendering |
| topic | Discrete element method Electrode slurry Drying Calendering Structural evolution Representative volume element |
| url | http://www.sciencedirect.com/science/article/pii/S0142061525000729 |
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