▎ 摘　　要

NOVELTY - Production of graphene-doped silicon nanopowder involves mixing a graphene material with silicon precursor to form silicon precursor/graphene nanocomposite, mixing the silicon precursor/graphene nanocomposite with magnesium, converting silicon precursor/graphene nanocomposite to form of graphene-doped silicon and reaction by-product by chemical or thermal reduction reaction, and removing the reaction by-product from the mixture. The graphene-doped silicon nanopowder has silicon particle size of less than 100 nm. USE - Production of graphene-doped silicon nanopowder for anode of lithium-ion battery used for electric vehicle, renewable energy storage and smart grid applications. ADVANTAGE - The lithium-ion battery anode comprising graphene-doped silicon nanopowder has excellent reversibility, and is economical. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart of production of graphene-doped silicon nanopowder.