NEGATIVE ELECTRODE ACTIVE MATERIAL, SECONDARY BATTERY, AND ELECTRONIC DEVICE

A negative electrode active material, a secondary battery, and an electronic device are provided. The negative electrode active material includes graphite, where Dn10, Dv50, and Dv90 of the negative electrode active material satisfy: D = (Dv90 - Dn10) / Dv50, and 0.8 ≤ D ≤ 1.5. The Dn10 of the negative electrode active material is 1 µm to 5 µm. In an X-ray diffraction pattern of the negative electrode active material, a peak intensity ratio of a characteristic peak C004 to a characteristic peak C110 is I. The negative electrode active material satisfies: 2 ≤ I/D ≤ 4. The negative electrode active material can be used to improve the cycling performance of the secondary battery.