NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY INCLUDING THE SAME, AND METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY

The present disclosure relates to a negative electrode for a lithium secondary battery, including: a negative electrode current collector; and a negative electrode active material layer disposed on at least one surface of the negative electrode current collector, and including a Si-based negative electrode active material, a conductive material and a first binder polymer, wherein the Si-based negative electrode active material has cracks formed after activating, a second binder polymer is coated in the cracks, and the first binder polymer and the second binder polymer are heterogeneous. The present disclosure also relates to a lithium secondary battery including the negative electrode and a method for manufacturing the lithium secondary battery. The lithium secondary battery shows improved life characteristics.