Lithium-ion battery negative electrode material, preparation method and lithium ion battery

The invention discloses a lithium-ion battery negative electrode material, a preparation method and a lithium ion battery, and belongs to the field of preparation of lithium-ion battery electrode materials. The lithium-ion battery negative electrode material adopts a hollow inner-core three-layer coating structure, wherein a hollow inner-core coating material is a polyaniline/carbon nanotube composite material, a middle coating material is a silicone/graphite composite material, and an outer coating material is graphite. The prepared lithium-ion battery negative electrode material has the advantages of high gram capacity, high first efficiency, strong liquid absorbability, excellent cycle performance and low rebound rate; the lithium-ion battery negative electrode material is suitable for preparing lithium-ion batteries in the energy-storage field. The preparation method of the lithium-ion battery negative electrode material is simple and convenient to operate and is suitable for industrial popularization and application.