▎ 摘　　要

NOVELTY - Lithium-ion secondary battery comprises an anode sheet, a cathode sheet, a diaphragm, an electrolyte and a shell. The diaphragm is used to separate the anode sheet and the cathode sheet. The shell is used to assemble the anode sheet, the cathode sheet, the diaphragm and the electrolyte into a whole. The lithium-ion secondary battery has multiple charging and discharging platforms in the charging and discharging curve of 3-4.4 V0.1C, the discharging platform is 4.4-3.93 V, and the capacity accounts for 30-60 wt.%. The discharge platform is 3.93-3.74 V, the capacity accounts for 20-40 wt.%, the discharge platform is 3.74-3.15 V, and the capacity accounts for 4-40 wt.%. USE - Used as lithium-ion secondary battery. ADVANTAGE - The different types of anode materials are grafted into one body, the composition and distribution are stable during slurry preparation, in the process of charge and discharge, the two are at the same potential, and have good cycle performance, low temperature rise performance of rate discharge and low self-discharge rate.