Lithium-sulfur (Li-S) batteries face low sulfur utilization and limited rate capability. Although electrolyte engineering is a key strategy for improving the conversion kinetics of lithium polysulfides (LiPS), achieving a balance between high energy density and high power density remains challenging. This study combines an ultra-low concentration electrolyte with a dual-functional hybrid organic selenium/organic tellurium additive (DPDSe/DPDTe). The system exhibits higher ionic conductivity and