About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2023
|
| Presentation Title |
3D Detailed Modeling Framework of Electrochemo-mechanics Behavior in SiO/Gr Composite Anode for High Energy Density Lithium-ion Battery |
| Author(s) |
Xiang Gao, Jun Xu |
| On-Site Speaker (Planned) |
Jun Xu |
| Abstract Scope |
SiO/Graphite (Gr) composite has been regarded as one of the most promising anode materials for the next generation of high-energy-density lithium-ion batteries (LIBs). The heterogeneous composition of such an anode system brings in highly nonlinear and complex electrochemical behaviors compared to the single-material anode. The computational modeling provides an efficient and accurate way to explore the electrochemo-mechanics behaviors of SiO/Gr composite anode. Herein, we propose a 3D multiphysics modeling framework at the electrode level containing particle geometries based on a representative volume element (RVE) and study the electrochemical process of the half-cell charging. The effects of SiO proportion, SiQ position, and SiO particle size on the electrochemical performance are discussed. Results provide an in-depth understanding of the electrochemical behaviors of the composite anode and guide the design for SiO/Gr anode materials in maximizing the theoretical capacity while maintaining better rate performance. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Modeling and Simulation, Mechanical Properties |