| abstract |
The present invention relates to an anode and a secondary battery, the anode comprising an anode active material layer including an anode active material, wherein the anode active material includes a core and a coating layer disposed on the core, the core comprises a natural graphite and an amorphous carbon layer, D 50 of the natural graphite is 10 µm to 14 µm, and as confirmed through ONH analysis, the anode active material comprises 1,500 ppm wt% to 2,000 ppm wt% of oxygen, 200 ppm wt% to 300 ppm wt% of nitrogen, and 200 ppm wt% to 300 ppm wt% of hydrogen, and the coating layer comprises carbon nanofibers. |