Co-construction of sulfur vacancies and carbon confinement in V5S8/CNFs to induce an ultra-stable performance for half/full sodium-ion and potassium-ion batteries

Sulfur defective V₅S₈/CNFs is synthesized by an electrospinning method, followed by sulfuration treatment. The obtained composite exhibits attractive capacities and ultra-stable cycling performances when using as anode materials for sodium-ion and potassium-ion batteries.