About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage 2023
|
Presentation Title |
Elucidating the Governing Forces Behind Chemo-Mechanical Instabilities in Electrodes for Alkali Metal-ion Batteries |
Author(s) |
Omer Ozgur Capraz |
On-Site Speaker (Planned) |
Omer Ozgur Capraz |
Abstract Scope |
Performance of alkali metal-ion battery electrodes depends on the chemo-mechanical stability of the electrodes during cycling. Continuous volumetric expansions / reduction during intercalation, slower transport of alkali metal ions in the electrode at faster rates and the formation of solid-electrolyte interface are the major factors behind chemo-mechanical instabilities in alkali metal ion batteries. Physical and electrochemical behavior of the electrode materials in response to Na+ and K+ ion intercalation is expected to be fundamentally different than the response to Li+ ion. However, there is not much known about how electrochemical reactions and transport of ions take place in electrode materials with different alkali metal ions. In this talk, we will discuss the governing forces behind the chemo-mechanical instabilities in alkali metal ion battery electrodes. In operando digital image correlation and curvature measurements were conducted in order to probe dynamic physical changes in the electrodes during battery cycling. |
Proceedings Inclusion? |
Planned: |
Keywords |
Energy Conversion and Storage, Mechanical Properties, Phase Transformations |