| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
An Atoms to Autos Approach for Materials Innovations for Lightweighting: An LMD Symposium in Honor of Anil K. Sachdev
|
| Presentation Title |
Micro-mechanics of Li Metal for High Energy Battery Applications: A Full-field Crystal Plasticity Approach |
| Author(s) |
Supriyo Chakraborty |
| On-Site Speaker (Planned) |
Supriyo Chakraborty |
| Abstract Scope |
Although lithium metal batteries have the highest energy density, issues like void formation and dendrite growth limit the practical application of these batteries. One solution is to apply stack pressure to activate plastic flow of Li metal and maintaining a proper contact between the Li anode and the electrolyte. However, the present approaches do not consider microstructure sensitive mechanical response of Li metal. Here we used DAMASK crystal plasticity simulation toolkit to study the micro-mechanical field evolution in Li metal under compressive loading. Experimentally observed Li foil and plated microstructures were considered. Effects of crystallographic texture, grain morphology and grain size distribution have been studied in terms of required stress, plastic flow anisotropy and stress triaxiality. Finally, a microstructure dependent deformation map is developed to identify and control the critical microstructural features to harness the stack pressure most effectively. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Modeling and Simulation, Mechanical Properties |