| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
2024 Graduate Student Poster Contest
|
| Presentation Title |
SPG-53: 2D MoS2, WS2, and MoWS2 Nano-Flakes for Sodium and Potassium Ion Battery |
| Author(s) |
Arijit Roy, Sonjoy Dey, Gurpreet Singh |
| On-Site Speaker (Planned) |
Arijit Roy |
| Abstract Scope |
Transition metal dichalcogenides (TMDs) and their alloys have a large interlayer spacing and the ability to host alkali-metal ions. This characteristic is vital to developing sustainable and economical energy storage alternatives. This study explores different TMDs and TMD alloys as electrode materials for sodium-ion batteries (NIBs) and potassium-ion batteries (KIBs). The cyclic stability test analysis of the sodium and potassium half-cells compares specific charge capacity and coulombic efficiency. This analysis also investigates the effect on resistance and degradation processes during cycling, which is influenced by the size of the alkali-metal ions and TMDs or TMD alloys, along with cyclic voltammetry and electrochemical impedance spectroscopy. The impact of the size of geometric-shaped TMD flakes on the electrochemical intercalation and removal processes of alkali metal ions has been demonstrated. This comparative study of different TMD materials for NIBs and KIBs has the potential to promote the development of next-generation batteries. |