| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2024
|
| Presentation Title |
Spatiotemporal Resolution of Phase Evolution of Sodium Vanadium Oxide (NaV3O8) Electrodes in Aqueous Zinc Batteries |
| Author(s) |
Esther Takeuchi, Amy Marschilok, Kenneth J Takeuchi |
| On-Site Speaker (Planned) |
Esther Takeuchi |
| Abstract Scope |
Decarbonization of the electrical grid requires integration of renewable energy sources (solar, wind) and implementation of large-scale energy storage to balance their inherent intermittency. A promising candidate for large-scale storage is the aqueous Zn-ion battery. Notably, large-scale storage systems can benefit from deliberately designed electrode architectures. Thick electrodes can increase the energy density by increasing the active content, however, they may suffer from ion transport limitations under application conditions.
Here, we probe the impact of the size and crystallinity of the cathode material, NaV3O8 (NVO), discharge product distribution. We determine the reaction progression within thick electrodes under load to yield insight into electrode design. Operando synchrotron x-ray diffraction and energy dispersive x-ray diffraction, EDXRD, are used to resolve phase evolution of the NVO electrodes. The data provides spatiotemporally resolved information regarding the reaction fronts to determine differences in the phase evolution of redox products as a function of location. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Phase Transformations, Characterization |