Anode material, preparation method thereof and lithium ion battery

Abstract

An anode material, a method for preparing the same, and a lithium ion battery. The anode material includes a core and a first coating layer at least partially coating on a surface of the core. The core includes a silicon-based material, the first coating layer comprises a carbon material, and at least a part of a surface of the first coating layer is distributed with a fiber material. The fiber material and the anode material satisfy a formula (I): D w ⁢ i ⁢ r ⁢ e D 1 ⁢ 0 × 1 exp ⁢ ( ρ ) - 1 ≤ 0 .15 , ( I ) in the formula (I), Dwire represents a minimum fiber diameter (nm) of the fiber material, D10 represents a corresponding particle size (nm) when the cumulative particle size distribution number of the anode material reaches 10%, and ρ represents a powder conductivity (S/cm) of the anode material.

Dependencies are inferred from the claim text.