NEGATIVE ELECTRODE CARBON MATERIAL FOR LITHIUM ION SECONDARY BATTERY, PRODUCTION METHOD THEREFOR, AND NEGATIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY USING SAME

Provided is a carbon material for a negative electrode of a lithium ion secondary battery, which has a small particle diameter, high initial charge-discharge efficiency, and a high 2C discharge rate, and achieves both input-output characteristics and durability. [0002] Disclosed is a carbon material for a negative electrode of a lithium ion secondary battery, in which a 50% by volume particle diameter (D) in a cumulative frequency distribution is 1.0 µm or more and less than 5.0 µm, a specific surface area (S) by a BET method is 6.5 m/g or less, a tap density (D) is 0.70 g/cm or more, and a Raman R value obtained by Raman spectroscopy is more than 0.100 and less than 0.300, and the carbon material has a carbonaceous film on a surface of graphitized material particles of a mesophase microbead.