NEGATIVE ACTIVE MATERIAL, NEGATIVE ELECTRODE COMPRISING SAME, METHOD OF PREPARING NEGATIVE ELECTRODE, AND LITHIUM BATTERY

摘要

PURPOSE: A negative electrode active material, a negative electrode including thereof, a manufacturing method of the negative electrode, and a lithium battery are provided to maintain the structure of the negative electrode active material when charging and discharging the battery. CONSTITUTION: A negative electrode active material contains a non-carbon material, a carbon nanotube, and a composite including nano carbon granule. A manufacturing method of a negative electrode including the material comprises the following steps: mixing the non-carbon material with the carbon nanotube inside an organic solvent through milling; adding a carbonizable monomer and a polymerization catalyst to form a polymer before carbonizing the polymer to form the negative electrode active material; mixing the negative electrode active material, a binder, and a solution to form an active composition; and spreading and drying the composition.