Fracture predictions based on a coupled chemo-mechanical model with strain gradient plasticity theory for film electrodes of Li-ion batteries
High-capacity electrodes in Li-ion batteries inevitably undergo a large volume deformation originating from high diffusion-induced stresses during charging and discharging processes. In this paper, we firstly develop a new elastoplastic model for describing diffusion-induced deformation in the frame...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
2021
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| Online Access: | http://hdl.handle.net/20.500.11937/85068 |
| _version_ | 1848764711956381696 |
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| author | Chen, Y. Sang, M. Jiang, W. Wang, Y. Zou, Y. Lu, Chunsheng Ma, Z. |
| author_facet | Chen, Y. Sang, M. Jiang, W. Wang, Y. Zou, Y. Lu, Chunsheng Ma, Z. |
| author_sort | Chen, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | High-capacity electrodes in Li-ion batteries inevitably undergo a large volume deformation originating from high diffusion-induced stresses during charging and discharging processes. In this paper, we firstly develop a new elastoplastic model for describing diffusion-induced deformation in the framework of high-density dislocation defects generated due to the migration of Li atoms. Then, we analyze the film size effect, diffusion-induced stress, plastic yielding, and hardening of electrode materials based on the evolutions of Li concentration by a strategy combining the strain gradient plasticity theory and finite element simulations. Finally, according to the traction-separation law, interface damage and debonding are characterized in the active film materials (with a thickness of 150, 200, and 250 nm, respectively) on a rigid substrate. |
| first_indexed | 2025-11-14T11:23:42Z |
| format | Journal Article |
| id | curtin-20.500.11937-85068 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:23:42Z |
| publishDate | 2021 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-850682021-11-10T07:49:37Z Fracture predictions based on a coupled chemo-mechanical model with strain gradient plasticity theory for film electrodes of Li-ion batteries Chen, Y. Sang, M. Jiang, W. Wang, Y. Zou, Y. Lu, Chunsheng Ma, Z. High-capacity electrodes in Li-ion batteries inevitably undergo a large volume deformation originating from high diffusion-induced stresses during charging and discharging processes. In this paper, we firstly develop a new elastoplastic model for describing diffusion-induced deformation in the framework of high-density dislocation defects generated due to the migration of Li atoms. Then, we analyze the film size effect, diffusion-induced stress, plastic yielding, and hardening of electrode materials based on the evolutions of Li concentration by a strategy combining the strain gradient plasticity theory and finite element simulations. Finally, according to the traction-separation law, interface damage and debonding are characterized in the active film materials (with a thickness of 150, 200, and 250 nm, respectively) on a rigid substrate. 2021 Journal Article http://hdl.handle.net/20.500.11937/85068 10.1016/j.engfracmech.2021.107866 restricted |
| spellingShingle | Chen, Y. Sang, M. Jiang, W. Wang, Y. Zou, Y. Lu, Chunsheng Ma, Z. Fracture predictions based on a coupled chemo-mechanical model with strain gradient plasticity theory for film electrodes of Li-ion batteries |
| title | Fracture predictions based on a coupled chemo-mechanical model with strain gradient plasticity theory for film electrodes of Li-ion batteries |
| title_full | Fracture predictions based on a coupled chemo-mechanical model with strain gradient plasticity theory for film electrodes of Li-ion batteries |
| title_fullStr | Fracture predictions based on a coupled chemo-mechanical model with strain gradient plasticity theory for film electrodes of Li-ion batteries |
| title_full_unstemmed | Fracture predictions based on a coupled chemo-mechanical model with strain gradient plasticity theory for film electrodes of Li-ion batteries |
| title_short | Fracture predictions based on a coupled chemo-mechanical model with strain gradient plasticity theory for film electrodes of Li-ion batteries |
| title_sort | fracture predictions based on a coupled chemo-mechanical model with strain gradient plasticity theory for film electrodes of li-ion batteries |
| url | http://hdl.handle.net/20.500.11937/85068 |