ANODE MATERIAL FOR LITHIUM SECONDARY CELL WITH HIGH CAPACITY

摘要

Disclosed is an anode material comprising a metal core layer capable of repetitive lithium intercalation/deintercalation; an amorphous carbon layer coated on the surface of the metal core layer; and a crystalline carbon laye r coated on the amorphous carbon layer. The anode material not only maintains a high charge/discharge capacity, which is an advantage of a metal-based anode material, but also inhibits changes in the volume of a metal core layer caus ed by repetitive lithium intercalation/deintercalation in virtue of an amorphou s carbon layer and a crystalline carbon layer, thereby improving the cycle lif e characteristics of cells.