| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage VI
|
| Presentation Title |
Impact of Inter-particle Interactions on Electrochemical Performance of Lithium-ion Battery Electrodes |
| Author(s) |
Scott A. Roberts, Dan S. Bolintineanu, Mark E. Ferraro, Jeremy B. Lechman, David R. Noble, Ishan Srivastava, Bradley L. Trembacki |
| On-Site Speaker (Planned) |
Scott A. Roberts |
| Abstract Scope |
While lithium-ion battery electrodes are manufactured in high-speed manufacturing processes, the morphology of the particle and binder structures greatly affect macroscale properties and can vary significantly as a function of manufacturing conditions. To explore the process-structure-property relationship, we employ mesoscale finite element simulations of the particle-conductive binder-electrolyte composite of a NMC cathode. Particle and conductive binder domain mesostructures are derived from both x-ray computed tomography imaging and simulated using discrete element methods. The Conformal Decomposition Finite Element Method is applied to create conformal three-phase finite element meshes of these mesostructures. In this talk, we explore the how simulated mesostructures can be used to approximate as-manufactured geometries, while providing additional insights into how electrode slurry chemistry and processing conditions affect the mesostructure. We focus on examining how particle-to-particle interactions affect electrochemical discharge performance. Additionally, the mechanical impacts of calendaring and lithiation-induced swelling are explored in the context of external mechanical loads. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |