METHOD OF MANUFACTURING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY

The present invention provides a method of manufacturing a negative electrode for a lithium secondary battery, the method including forming a negative electrode active material layer on a negative electrode current collector to manufacture a negative electrode assembly, and pre-lithiating the negative electrode assembly, wherein the pre-lithiating of the negative electrode assembly includes a first pre-lithiation step of performing pre-lithiation by impregnating the negative electrode assembly with a first pre-lithiation solution and a second pre-lithiation step of performing pre-lithiation by impregnating the negative electrode assembly with a second pre-lithiation solution after the first pre-lithiation step, the first pre-lithiation solution includes an ionizable first lithium salt, a first organic solvent, and a first additive, the second pre-lithiation solution includes an ionizable second lithium salt, a second organic solvent, and a second additive, and a weight ratio of the first additive in the first pre-lithiation solution is less than a weight ratio of the second additive in the second pre-lithiation solution.