About this Abstract |
Meeting |
MS&T23: Materials Science & Technology
|
Symposium
|
Synthesis, Characterization, Modeling and Applications of Functional Porous Materials
|
Presentation Title |
Implications of Nanoscale Amorphous Metal Oxide Electrode Materials for Lithium Ion Batteries |
Author(s) |
Hui Xiong |
On-Site Speaker (Planned) |
Hui Xiong |
Abstract Scope |
Intercalation-type metal oxide electrodes are promising negative electrode materials for safe and stable operation of rechargeable lithium-ion batteries due to the reduced risk of Li plating at low voltages. Nevertheless, lower energy and power density along with cycling instability remain a bottleneck for their implementation, especially for desirable fast charging applications. Here, we summarize our recent progress in utilizing amorphous metal oxide nanostructures (e.g., TiO2 and Nb2O5) for enhanced electrochemical properties. Examples include the effects of crystallinity, electrochemically-induced amorphous-to-crystalline (a-to-c) transformation, and radiation-induced a-to-c transformed electrodes. |