Encapsulation Engineering of Sulfur into Magnesium Oxide for High Energy Density Li-S Batteries.

ABSTRACT: This study addresses the persistent challenge of polysulfide dissolution in lithium-sulfur (Li-S) batteries by introducing magnesium oxide (MgO) nanoparticles as a novel additive. MgO was integrated with sulfur using a scalable process involving solid-state melt diffusion treatment followed by planetary ball milling. XRD measurements confirmed that sulfur (S₈) retains its orthorhombic crystalline structure (space group Fddd) following the MgO incorporation, with minimal peak shifts indicating slight lattice distortion, while the increased peak intensity suggests enhanced crystallinity due to MgO acting as a nucleation site. Additionally, Raman spectroscopy demonstrated sulfur's characteristic vibrational modes consistent with group theory (point group D2h) and highlighted multiw

SUBMITTER: Choudhary S 

PROVIDER: S-EPMC11547636 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature