NOVELTY - An anode active material comprises a core and a shell coated outside the core. The core comprises metal chosen from IV group transition metal element, and III group non-metallic element. The shell comprises carbon and a metal compound. The metal compound is metal oxide and/or metal salt. The metal oxide and metal salt comprises II group metal, III group metal, V group metal, lanthanide or actinide, and II group metal or III group non-metallic element. The anode active material has median diameter (D50) of 10-20 mu m, conductivity of 0.01-0.1 S/cm-1, and tap density of 1-1.5 g/cm3.    USE - Anode active material is used for battery (claimed).    ADVANTAGE - The anode active material has excellent rate discharge property, low water absorption rate, and excellent processability.    DETAILED DESCRIPTION - An anode active material comprises a core and a shell coated outside the core. The core has compositional formula: LinV'mMhTiRlOk, where V' and M are chosen from IV group transition metal element, T is III group non-metallic element, n, m, h, i, l, and k are 0 or more. The shell comprises carbon and a metal compound. The metal compound is metal oxide and/or metal salt. The metal oxide and metal salt have compositional formula: Lx-1U'x2Ax3Cx4Ox5, where L and U' are chosen from II group metal, III group metal, V group metal, lanthanide or actinide, A and C' are chosen from II group metal or III group non-metallic element, and (x1+x2)/(x3+x4) is 1-4. The anode active material has median diameter (D50) of 10-20 mu m, conductivity of 0.01-0.1 S/cm-1, and tap density of 1-1.5 g/cm3. INDEPENDENT CLAIMS are included for the following:    (1) manufacture of anode active material, which involves ball-milling anode active material precursor, carbon source and metal source, obtaining mixture, spraying and granulating the mixture to obtain sintered material as positive electrode active material. The carbon source is chosen from glucose, sucrose, lactose, polyethylene glycol, polyvinyl alcohol, benzene derivative, gelatin, albumin, starch, conductive graphite, or acetylene black. The metal source is metal oxide and/or metal salt; and    (2) battery, which has a battery shell, an electric core assembly and electrolyte. The assembly comprises a positive pole, a diaphragm and a negative pole. The positive pole comprises an anode current collector having anode material comprising the anode active material.