▎ 摘　　要

NOVELTY - Porous silicon dioxide is loaded on graphene to obtain graphene-silicon dioxide. Obtained graphene-silicon dioxide, lithium salt, manganese salt and additive are added to water and ultrasonically dispersed uniformly. The mixture is stirred until the solvent is volatized completely and the obtained solid is heated under inert atmosphere. The mixture is reacted and cooled to room temperature, to obtain intermediate product. The obtained intermediate product is ground in agate mortar to obtain tablets which are calcined to obtain graphene-lithium-manganese silicate anode material. USE - Manufacture of graphene-lithium-manganese silicate anode material is used for lithium-ion battery (claimed). ADVANTAGE - The method efficiently provides small-sized graphene-lithium-manganese silicate anode material having improved electroconductivity and electrochemical performance. DETAILED DESCRIPTION - Porous silicon dioxide is loaded on graphene to obtain graphene-silicon. Obtained graphene-silicon dioxide, lithium salt, manganese salt and additive are added to water and ultrasonically dispersed uniformly. The mixture is stirred at 60 degrees C until the solvent is volatized completely and the obtained solid is heated under inert atmosphere. Heating temperature is raised to 5-10 degrees C/minute. The mixture is reacted at 300-400 degrees C for 3-10 hours and cooled to room temperature, to obtain intermediate product. The obtained intermediate product is ground in agate mortar to obtain tablets and obtained tablets are calcined at 70-90 degrees C for 5-20 hours to obtain graphene-lithium-manganese silicate anode material. The molar ratio of lithium, manganese and silicon dioxide is 2:1:1. The content of additive is 0-20 wt.% with respect to total weight content of the mixture.