Impact of Sulfur Infiltration Time and Its Content in an N-doped Mesoporous Carbon for Application in Li-S Batteries

Li-S batteries are ideal candidates to replace current lithium-ion as next-generation energy storage systems thanks their high specific capacity and theoretical density. Composite electrodes based on carbon microstructures often used a host for sulfur. However, sulfur lixiviation, insoluble species formation, how maximize the sulfur-carbon contact in looking improved electrochemical performance still major challenges. In this study, nitrogen doped mesoporous is The S/C composite prepared by melting-diffusion process at 155 °C. effect of time [sulfur infiltration time] (1–24 h) content (10–70%) investigated using XRD, SEM, TEM TGA analyses correlated with cells. electrode homogeneous distribution can be reached 6 h 10 wt.% content. cell shows use sufficient electronic conductivity achieving an initial discharge 983 mA g?1 Coulombic efficiency 99% after 100 cycles.