Multiphysics Modeling for Detailed Analysis of Multi-Layer Lithium-Ion Pouch Cells
Multiphysics modeling permits a detailed investigation of complex physical interactions and heterogeneous performance in multiple electro-active layers of a large-format Li-ion cell. For this purpose, a novel 3D multiphysics model with high computational efficiency was developed to investigate detai...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/11/11/2998 |
| _version_ | 1811300479146131456 |
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| author | Nan Lin Fridolin Röder Ulrike Krewer |
| author_facet | Nan Lin Fridolin Röder Ulrike Krewer |
| author_sort | Nan Lin |
| collection | DOAJ |
| description | Multiphysics modeling permits a detailed investigation of complex physical interactions and heterogeneous performance in multiple electro-active layers of a large-format Li-ion cell. For this purpose, a novel 3D multiphysics model with high computational efficiency was developed to investigate detailed multiphysics heterogeneity in different layers of a large-format pouch cell at various discharge rates. This model has spatial distribution and temporal evolution of local electric current density, solid lithium concentration and temperature distributions in different electro-active layers, based on a real pouch cell geometry. Other than previous models, we resolve the discharge processes at various discharge C-rates, analyzing internal inhomogeneity based on multiple electro-active layers of a large-format pouch cell. The results reveal that the strong inhomogeneity in multiple layers at a high C-rate is caused by the large heat generation and poor heat dissipation in the direction through the cell thickness. The thermal inhomogeneity also strongly interacts with the local electrochemical and electric performance in the investigated cell. |
| first_indexed | 2024-04-13T06:52:45Z |
| format | Article |
| id | doaj.art-f0bf16a13b87429a8b7ebd26aa36b428 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T06:52:45Z |
| publishDate | 2018-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-f0bf16a13b87429a8b7ebd26aa36b4282022-12-22T02:57:22ZengMDPI AGEnergies1996-10732018-11-011111299810.3390/en11112998en11112998Multiphysics Modeling for Detailed Analysis of Multi-Layer Lithium-Ion Pouch CellsNan Lin0Fridolin Röder1Ulrike Krewer2Mechanical Engineering Department, Institute of Energy and Process Systems Engineering, Technische Universität Braunschweig, Franz-Liszt-Str. 35, D-38106 Braunschweig, GermanyMechanical Engineering Department, Institute of Energy and Process Systems Engineering, Technische Universität Braunschweig, Franz-Liszt-Str. 35, D-38106 Braunschweig, GermanyMechanical Engineering Department, Institute of Energy and Process Systems Engineering, Technische Universität Braunschweig, Franz-Liszt-Str. 35, D-38106 Braunschweig, GermanyMultiphysics modeling permits a detailed investigation of complex physical interactions and heterogeneous performance in multiple electro-active layers of a large-format Li-ion cell. For this purpose, a novel 3D multiphysics model with high computational efficiency was developed to investigate detailed multiphysics heterogeneity in different layers of a large-format pouch cell at various discharge rates. This model has spatial distribution and temporal evolution of local electric current density, solid lithium concentration and temperature distributions in different electro-active layers, based on a real pouch cell geometry. Other than previous models, we resolve the discharge processes at various discharge C-rates, analyzing internal inhomogeneity based on multiple electro-active layers of a large-format pouch cell. The results reveal that the strong inhomogeneity in multiple layers at a high C-rate is caused by the large heat generation and poor heat dissipation in the direction through the cell thickness. The thermal inhomogeneity also strongly interacts with the local electrochemical and electric performance in the investigated cell.https://www.mdpi.com/1996-1073/11/11/29983D multiphysics modellithium-ion batterybattery designheterogeneity |
| spellingShingle | Nan Lin Fridolin Röder Ulrike Krewer Multiphysics Modeling for Detailed Analysis of Multi-Layer Lithium-Ion Pouch Cells Energies 3D multiphysics model lithium-ion battery battery design heterogeneity |
| title | Multiphysics Modeling for Detailed Analysis of Multi-Layer Lithium-Ion Pouch Cells |
| title_full | Multiphysics Modeling for Detailed Analysis of Multi-Layer Lithium-Ion Pouch Cells |
| title_fullStr | Multiphysics Modeling for Detailed Analysis of Multi-Layer Lithium-Ion Pouch Cells |
| title_full_unstemmed | Multiphysics Modeling for Detailed Analysis of Multi-Layer Lithium-Ion Pouch Cells |
| title_short | Multiphysics Modeling for Detailed Analysis of Multi-Layer Lithium-Ion Pouch Cells |
| title_sort | multiphysics modeling for detailed analysis of multi layer lithium ion pouch cells |
| topic | 3D multiphysics model lithium-ion battery battery design heterogeneity |
| url | https://www.mdpi.com/1996-1073/11/11/2998 |
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