NEGATIVE ELECTRODE AND SECONDARY BATTERY INCLUDING SAME

The present invention relates to a negative electrode and a secondary battery including the same, the negative electrode including a negative electrode active material layer, the negative electrode active material layer including a negative electrode active material, the negative electrode active material including a carbon-based negative electrode active material, the carbon-based negative electrode active material including a core containing a plurality of flake artificial graphite primary particles; natural graphite disposed on the core; and an amorphous carbon-based material, wherein the natural graphite is contained in the carbon-based negative electrode active material in an amount of 10 wt% to 30 wt%, and the carbon-based negative electrode active material has a sphericity of 0.78 to 0.83.