METHOD FOR MAKING A CARBON MATERIAL FOR ANODE AND LITHIUM-ION RECHARGEABLE BATTERY

A method for making a carbon material for an anode of a lithium-ion secondary battery includes a sequence of: a) heating a heavy hydrocarbon oil to obtain a green coke, b) a heating the green coke to form a carbon-containing material, c) grinding the carbon-containing material into a powder, and collecting a portion of the powder, d) heating the portion of the powder to obtain a carbonaceous powder, and e) adding pitch to the carbonaceous powder and heating the pitch-contained carbonaceous powder. A lithium-ion secondary battery, which includes the anode having the carbon material, is also disclosed.