METAL OXIDE COATED MOLYBDENUM SULFIDE ELECTRODE MATERIAL FOR SODIUM RECHARGEABLE BATTERIES AND FABRICATION METHOD FOR PREPARING THE SAME, AND SODIUM RECHARGEABLE BATTERIES USING THE SAME

摘要

The present invention relates to manufacture of molybdenum sulfide (MoS2) nano-fibers coated with a metal oxide, and an electrode active material for a sodium secondary battery using the same. The molybdenum sulfide (MoS2) nano-fibers manufactured in an electrospinning method form a bundle by agglomerating together like an assembly, have a large specific surface area, and contain a number of fine nano-pores, thereby having excellent electrode active material properties for a sodium secondary battery. In particular, a thin metal oxide is additionally coated on the electrode including the molybdenum sulfide (MoS2) nano-fibers by using an atomic layer deposition, thereby manufacturing an electrode active material for a sodium secondary battery with a remarkably improved lifetime property.