| 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 |
Understanding Chemical and Structural Organization in Cation Disordered Rocksalt Oxides for Li-ion Batteries |
| Author(s) |
Megan M. Butala, John Langhout |
| On-Site Speaker (Planned) |
Megan M. Butala |
| Abstract Scope |
Cation disordered rocksalt oxide electrodes have high chemical versatility and comparable or better energy density than commercial Li-ion battery cathodes. This emerging class of materials could alleviate reliance on expensive, geographically-concentrated materials. To realize the promise of disordered rocksalt oxide cathodes requires overcoming seemingly inherent ionic transport limitations that necessitate sub-micron-sized particles and careful incorporation of conductive carbon additives.
Broad sampling of chemical space has led to new empirical understanding of structure-property relationships, especially between the size and charge of constituent cations and short-range chemical ordering. However, fundamental questions of how constituent cations affect structure and ion transport behavior remain. To address these open questions, we elucidating new understanding of the key cation features that affect hierarchical chemical and structural organization in a narrower compositional range. To do so, we combine average and local structure characterization methods and propose a conceptual framework to reconcile hierarchical chemical and structural features. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Powder Materials, Ceramics |