Loading...
Please wait, while we are loading the content...
Similar Documents
SnSb nanoalloys as e ffi cient anode materials for lithium-and sodium-ion batteries †
| Content Provider | Semantic Scholar |
|---|---|
| Author | Walter, Marc Doswaldab, Simon Kovalenko, Maksym V. |
| Copyright Year | 2016 |
| Abstract | The quest for higher energy densities of lithium-ion batteries (LIBs) and emerging sodium-ion analogues (SIBs) has motivated an intense research effort toward novel electrode materials. We report a simple and inexpensive colloidal synthesis of SnSb nanocrystals (NCs) and demonstrate their utility as lithiumand sodium-ion anode materials. In particular, SnSb NC Li-ion anodes deliver capacities of 890 mA h g 1 for 100 cycles at a current density of 200 mA g 1 and show excellent rate capability, reaching 90% and 80% of the theoretical capacity at current densities of 1000 and 5000 mA g , respectively. Similarly, SnSb NCs show also outstanding Na-ion storage properties with only 5% capacity loss over 100 cycles at a rate of 5000 mA g . Full-cells can be constructed with SnSb anodes and state-of-the-art cathodes, achieving anodic capacities of 600 and 400 mA h g 1 with an average discharge voltage of 3.0 and 2.7 V for lithiumand sodium-ions, respectively. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://pubs.rsc.org/en/content/articlepdf/2016/ta/c5ta10568d |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
