- Methods for manufacturing composite including metal telluride and carbon electrode material for secondary battery including composite manufactured thereby and Li-ion or Na-ion secondary battery comprising the same

摘要

The present invention relates to a method for producing a metal telluride, comprising the steps of (a) mixing a metal powder, a tellurium (Te) powder and a carbon (C) powder; and (b) And carbon (C), comprising the steps of: preparing a metal-tellurium compound / carbon composite, According to the method for producing a composite according to the present invention, a complex containing a metal-tellurium compound and carbon can be produced simply and efficiently by using a ball milling method, which is a simple solid synthesis method, without complicated and ineffective processes such as chemical methods However, In addition, when the metal-tellurium compound and the carbon-containing composite prepared by the above method are used as the electrode active material of the secondary battery, the lifetime of the electrode-active material for the lithium or sodium ion secondary battery, Characteristics and the like can be solved and a secondary battery system having a high capacity and a high initial efficiency and a high capacity and an excellent cycle life can be realized.