Study of performance improvements in Mo1-xCrxS2 (x=0, 0.5) sodium-ion battery
ChunChuen Yang1*, Yung-Hsiang Tung1, Cheng-Wei Kao1, Irish Valerie B. Maggay2, Wei-Ren Liu2
1Department of Physics, Chung Yuan Christian University, Chung-Li, Taiwan
2Department of Chemical Engineering, Chung Yuan Christian University, Chung-Li, Taiwan
* Presenter:ChunChuen Yang,
MoS2 is a good host material for sodium ions intercalation reaction and potential in making anode material of sodium-ion battery usage. However, specific charge capacity and cycling times are still worse than those of carbon-based ion batteries. Here we studied the lightly manganese-doped MoS2 nanosheets and improved the specific charge capacities and ion diffusion coefficient. The specific charge capacity recovery from the last high C-rate cycle is also better than the undoped one. The lightly Mn dopants increased charge mobility and capacity. This study reveals a simple way to enhance the sodium ion battery's performance by slightly Mn-doped in MoS2 and might be used in massive production.

Keywords: MoS2, sodium ion battery, charge mobility, charge capacity