Abstract
Based on density functional theory computation, we systematically investigated diffusion behavior of Mg ions in β-tin (Sn), bismuth (Bi), and their magnesiation compounds of Bi2Mg3 and Mg2Sn. Results showed that the β-Sn and Bi are good candidates for the anode materials for Mg ion batteries with small diffusion barriers. The dynamic simulations and the obtained energy barriers showed that compared with β-Sn, Bi is a better anode candidate with fast charge/discharge rates for the Mg ion batteries.
Original language | English |
---|---|
Pages (from-to) | 167-172 |
Journal | Materials Chemistry and Physics |
Volume | 182 |
Early online date | 21 Jul 2016 |
DOIs | |
Publication status | Published - 1 Oct 2016 |
Keywords
- Diffusion
- Alloys
- Ab initio calculations
- Molecular dynamics