| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Functional Nanomaterials: Functional Low-Dimensional (0D, 1D, 2D) Materials 2022
|
| Presentation Title |
In Situ Chemo-mechanical Characterization of the Formation and Oxidation of Redox Reaction Products at Nanoscale For Li-O2 Batteries |
| Author(s) |
Omer Ozgur Capraz, Hannah Dykes |
| On-Site Speaker (Planned) |
Omer Ozgur Capraz |
| Abstract Scope |
The theoretical energy density of lithium-oxygen batteries is by far the closest competitor to gasoline compared to other battery configurations. The sluggish oxygen evolution kinetics are typically more severe and cause the slow oxidation of lithium peroxide. It is crucial to elucidate how the nucleation of discharge products on the cathode surface affects the electrochemical performance in order to design new electrolytes and cathodes for lithium-oxygen batteries. In this study, we investigate the impact of the electrolyte salt on nanoscale dynamic changes on the surface of thin Au film cathode (1-D) during charge / discharge of Li-O2 batteries. In situ curvature evolution on the cathode is monitored during discharge and charge cycle via galvanostatic and cycling voltammetry. We will present the impact of the electrolyte salt on the potential-dependent surface stress generation during the formation and oxidation of electrochemical redox reaction products at nanoscale on the Au thin film cathode. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Thin Films and Interfaces, Characterization, Energy Conversion and Storage |