About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2026
|
| Presentation Title |
Multiscale Phase Field Modeling of Lithium Electrodeposition with Solid Electrolyte Interphases |
| Author(s) |
Jin Zhang, Peter Voorhees |
| On-Site Speaker (Planned) |
Jin Zhang |
| Abstract Scope |
Lithium metal is a promising anode material for next-generation energy storage. However, its low reduction potential leads to the formation of a passivation layer, the solid electrolyte interphase (SEI). This SEI layer is extremely thin, only tens of nanometers, while a practical cell’s separator is typically tens of micrometers thick. This significant difference in scale makes it computationally prohibitive to accurately model the SEI within a full cell simulation. To address this, I will present our new multiscale phase field model. We integrate a microscale SEI model, which captures SEI properties and its breakdown and regrowth mechanisms, with a macroscale electrochemical phase field model to simulate lithium dendrite growth. We investigate the effect of various SEI parameters, including SEI thickness, conductivity, and transference number, on lithium morphology. This model provides a more realistic description of lithium electrodeposition, offering a unique opportunity to understand SEI’s crucial role in lithium dendrite growth. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Computational Materials Science & Engineering, Modeling and Simulation |