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Anode material for lithium ion batteries, preparation method and battery containing anode material

The invention relates to the technical field of anode materials for lithium ion batteries, and specifically relates to an anode material for lithium ion batteries, a preparation method of the anode material and a battery containing the anode material. The preparation method is characterized by comprising the following steps in sequence: preparing 5wt% to 15wt% of a silicon sizing agent; preparing 10wt% to 50wt% of a resinol solution; after uniformly mixing the silicon-containing sizing agent, the resinol solution, spherical graphite and a conductive agent, vaporizing a solvent through pressure reduction to obtain a precursor; after mixing the precursor and high-temperature asphalt in a weight ratio of (10: 1) to (2: 1) at a high speed, carrying out mechanical fusion for 1 to 30 min to obtain a fused material; putting the fused material in a cladding kettle, stirring while heating for pyrolysis; then sintering for carbonization in an inert atmosphere, and then sieving to obtain the anode material for the lithium ion batteries. Compared with the prior art, the prepared anode material for the lithium ion batteries has the advantages of small specific surface area, high first efficiency, good circulation, high rate capability and the like, nanometer silicon is uniformly dispersed on the surface of a basal body, and a stable SEI film can be formed on the surface of the material.
Owner:SHANGHAI SHANSHAN TECH CO LTD
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