LITHIUM COMPENSATION MATERIAL AND PREPARATION METHOD THEREFOR, AND NEGATIVE ELECTRODE AND LITHIUM-ION BATTERY

The present disclosure relates to a lithium-replenishing material, a preparation method thereof, and a lithium-ion battery. The lithium-replenishing material comprises metal lithium particles and conductive material, and the conductive material includes a built-in segment embedded in metal lithium particles and an exposed segment external to metal lithium particles; the electrical conductivity of the conductive material is greater than 100 s/cm. The lithium-replenishing material of the present disclosure can accomplish the electron conduction between the metal lithium particles and the anode active material through the conductive material, which increases the channel of electron conduction, and at the same time facilitates the transport of lithium ions, and improves the efficiency of lithium-replenishing significantly by rapid intercalation process of lithium ions, thereby resulting in inhibiting the formation of isolated lithium effectively and avoiding the formation of dendrites piercing the battery separator and causing potential safety hazards.