NEGATIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY AND METHOD FOR PREPARING NEGATIVE MATERIAL FOR A LITHIUM SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a negative material employed in the negative electrode having a higher charge/discharge capacity, a higher charge/discharge efficiency, flatness of discharge curve, and a good cycling property between charge and discharge. SOLUTION: A lithium secondary battery comprises a carbon material capable of occluding and releasing lithium free and an amorphous metal compound containing metal capable of alloying with lithium, whereby at least part of the surface of the carbon material is coated with the amorphous metal compound.