About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Temperature Electrochemistry V
|
| Presentation Title |
Numerical Modelling and Phase Field Modelling of Silicon Electrodeposition for Solar Cells at High Temperatures using Molten Salts |
| Author(s) |
Aditya Moudgal, Tyler Melo, Alexander Alonzo, Andrew Charlebois, Evan Costa, Peter Catalino, Adam Clayton Powell, Yu Zhong, Uday Pal |
| On-Site Speaker (Planned) |
Aditya Moudgal |
| Abstract Scope |
Solid oxide membrane (SOM) molten salt electrolysis is a promising process in primary metals production. It is seen as a one step, environmentally clean, direct reduction process. This method has been demonstrated to produce pure magnesium and silicon using liquid cathodes. The scientific challenge that remains are non-uniform and non-planar growth of the silicon deposit on a suitable solid cathode. This presentation provides a numerical model and phase field model to understand deposition characteristics. A macroscopic finite element model considering conservation equations and solving for anodic current distribution, magnetohydrodynamic effects, and heat transfer is described. A phase field model solving the Cahn-Hilliard equation to understand interface stability is also shown. Experimentally, design and development of high-power switch to perform pulsed electrolysis will be presented. A cradle to gate life cycle analysis quantifying material inputs related to the mass balances in the electrolyte will also be presented. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electrometallurgy, Extraction and Processing, Modeling and Simulation |