ANODIC TUNGSTEN OXIDE MESOSPONGE CARBON LAYER AS AN ANODE FOR LI ION BATTERY

摘要

The present invention relates to a method for manufacturing carbon-coated crystalline tungsten oxide for an anode of a secondary battery, and a lithium-ion battery comprising the carbon-coated crystalline tungsten oxide. The method for manufacturing carbon-coated crystalline tungsten oxide for an anode of a secondary battery comprises the steps of: forming a non-crystalline tungsten oxide layer by oxidizing a surface of tungsten (W); and forming a carbon-coated crystalline tungsten oxide layer by heating the non-crystalline tungsten oxide layer in a gas atmosphere including acetylene. Accordingly, tungsten having high theoretical capacity is oxidized and a carbon-coated crystalline tungsten oxide layer having a mesosponge structure is formed, and thus an effect cab be achieved in that provided is a lithium-ion battery which facilitates insertion and separation of lithium ions and thus has large charge and discharge capacity. Furthermore, effects of simplifying a manufacturing process and reducing manufacturing costs can be achieved.