Abstract
The equilibrium structures, formation energy, mechanical properties and electronic properties of Co-Sn intermetallics have been systemically studied by first-principles study. The results show that the CoSn phase is more thermodynamically stable than any other stoichiometry of Co-Sn intermetallics. With the increasing of Co content in Co-Sn intermetallics, the mechanical properties change into brittle behavior from ductility character. Adding proper amount of Co to Co-Sn intermetallics can improve the cycle performance for lithium ion battery anode. However, high Co content will lead to a poor cycle performance for Co-Sn intermetallics.
| Original language | English |
|---|---|
| Pages (from-to) | 235-240 |
| Number of pages | 6 |
| Journal | Chemical Research in Chinese Universities |
| Volume | 34 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Apr 2018 |
| Externally published | Yes |
Keywords
- Co-Sn intermetallic
- Electronic property
- First-principle
- Lithium ion battery
- Mechanical property