The invention belongs to the technical field of
lithium ion batteries, and particularly relates to
anode material. The
anode material is formed by bulk phase material and surface material in a fusion mode, wherein the surface material is located on the surface of the bulk phase material, the bulk phase material is
lithium cobalt oxide, the surface material is fusing granules which are composed of layered
nickel lithium manganate, and the surface material accounts for 0.1-10% of the
anode material by a
mass percentage. Compared with the prior art, the anode material which is formed by the layered
nickel lithium
manganate is coated on the surface of the
lithium cobalt oxide, due to the fact that the
coating layer has good lithium-
ion conduction performance, not only is a
discharge voltage platform of the anode material not reduced and is the
discharge voltage platform of the anode material increased on the contrary, but also the
coating layer can play effective
gram volume under
high voltage, increase
structural stability of base body material and accordingly improve the
discharge capacity of the anode material under the
high voltage and prolong the cycle life of the anode material significantly. In addition, the invention further discloses a preparation method of the anode material and a
lithium ion battery comprising the anode material.