About this Abstract |
Meeting |
MS&T23: Materials Science & Technology
|
Symposium
|
Energy Materials for Sustainable Development
|
Presentation Title |
Processing and Performance of High Entropy Oxide as Anodes for Lithium-ion Batteries |
Author(s) |
Ting Shen, Guozhong Cao, Rajendra K. Bordia |
On-Site Speaker (Planned) |
Ting Shen |
Abstract Scope |
The rock-salt high entropy oxide (HEO) (MgNiZnCuCo)O was synthesized via a simple and scalable polymeric steric entrapment (PSE) method and by the solid-state synthesis method. The electrochemical performance of HEO was investigated. The synthesis technique has a strong influence on the performance. Results will be presented on the comparison of the structural and microstructural characterization of the materials prepared using the two synthesis approaches. Compared with the materials prepared by the solid-state synthesis method, the HEOs synthesized using the PSE method showed better electrochemical performance including a high specific capacity and high cyclic stability, exceeding 500 mAhg-1 at 0.1 A/g and 250 mAhg-1 at 3A/g after 5000 cycles. The PSE synthesized HEOs also have a more ordered structure and this is postulated to be the reason for the higher capacity and improved cyclic stability of the anodes. |