▎ 摘　　要

NOVELTY - Composite anode material comprises anode matrix material, and a lithium-poor intermediate layer and a composite coating layer sequentially coated on the surface of the anode base material, where the composite coating layer includes an electronic conductor and an ion conductor. USE - The composite anode material is useful in preparing lithium ion batteries, preferably liquid lithium ion battery, mixed solid-liquid lithium ion battery, mixed solid-liquid metal lithium battery, all-solid lithium ion battery and all-solid metal lithium battery (claimed). ADVANTAGE - The composite anode material: coats the anode matrix material through the lithium-poor intermediate layer and the composite coating layer, which improves the rate performance and coulomb efficiency of the composite anode material; and improves the cycle performance of the composite anode material. DETAILED DESCRIPTION - Composite anode material comprises anode matrix material, and a lithium-poor intermediate layer and a composite coating layer sequentially coated on the surface of the anode base material, where the lithium-poor intermediate layer is of formula (LixMx1Mn2-x1O4) with a spinel structure; and the composite coating layer includes an electronic conductor and an ion conductor. x = 0-2; x1 = 0-2; and M = Ni, V, Co, Cr, Cu, Fe, Mo, Al, La, Mg, Ca, Ge, Gd or B. An INDEPENDENT CLAIM is also included for preparation of composite anode material.