| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2025
|
| Presentation Title |
Electrochemical Behavior of High Surface Nanostructured SnO2/RGO Composites as Anode Materials for Lithium-Ion Batteries |
| Author(s) |
Daniela Pantoja León, Gustavo García Mendoza |
| On-Site Speaker (Planned) |
Daniela Pantoja León |
| Abstract Scope |
In the present work, SnO2/RGO nanocomposites with very high surface area were synthesized using combined methods. Nanostructured SnO2 was prepared by a new route called "solvo / hydro – atrane method generating SnO2 particles homogeneously distributed in the nanometric scale (6 ± 2nm) with a surface area of 342.6 m2/g. Parallelly, RGO was synthesized by chemical oxidation followed by a rapid thermal expansion, obtaining a few layers material (5-7 layers). For the synthesis of the SnO2/RGO composites, an integrating procedure were carried out. The final products were characterized by FTIR, DRX, BET, ATG and DLS.
With the synthesized materials, lithium-ion cells were assembled in order to evaluate their electrochemical performance (charge/discharge, life cycle, electrochemical impedance spectroscopy). The best composition of SnO2/RGO nanocomposites (75% RGO, 25% SnO2) reached a specific electrochemical capacity of 1011 mAh/g that remained stable for more than 50 cycles with low charge transfer resistance. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Energy Conversion and Storage, Nanotechnology |