| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage VI
|
| Presentation Title |
Long Cycle-life and High-rate Magnesium-ion Battery Anode Enabled By Self-healing Through Near-room-temperature Solid-liquid Phase Transition |
| Author(s) |
Eric Detsi, Lin Wang |
| On-Site Speaker (Planned) |
Eric Detsi |
| Abstract Scope |
Recently magnesium-ion batteries have been the subject of intense research as an alternative to lithium. Progress toward practical magnesium-ion batteries has been impeded by the absence of suitable electrolytes that are compatible with magnesium metal used as the negative electrode. A promising way to circumvent this electrolyte issue is through the use of alloy-type anodes as the negative electrode instead of magnesium metal. In this talk, I will present a novel high-performance alloy-type magnesium-ion battery anode which we have developed, which can be reversibly (de)magnesiated at the C-rate of 3C over 1000 cycles with excellent capacity retention. This exceptional performance is to thanks to the self-healing property of the active electrode material, which undergo solid-to-liquid phase transition when the cell operate around 30-40oC. Operando X-ray scattering techniques were used to demonstrate this self-healing property in real-time during magnesiation and demagnesiation.
|
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |