Siliconoxycarbide composite preparation method thereof and anode material for sodium secondary battery comprising the same

摘要

The present invention relates to a silicon oxycarbide composite, a method for producing the same, and a negative electrode material for a sodium secondary battery comprising the same. More particularly, the present invention relates to a silicon oxycarbide composite comprising at least one nanoparticle selected from antimony, germanium, selenium and gallium supported on silicon oxycarbide The present invention can be applied to a negative electrode material for a secondary battery that exhibits excellent volume expansion and excellent electrochemical characteristics during charging / discharging by using a silicon oxycarbide composite.