▎ 摘　　要

NOVELTY - A silicon-graphene-maxine-containing negative electrode material is manufactured by surface-modifying silicon particles with alkoxysilane-based surface modifier; placing silicon particles surface-modified with alkoxysilane-based surface modifier, graphene oxide, and Ti3C2Tx maxine in a solvent, adding stearic acid, ultrasonically dispersing, freeze-drying, and pulverizing to form graphene and Ti3C2Tx maxine on the silicon surface to prepare coated silicon-graphene-maxine core-shell powder; ultrasonically dispersing silicon-graphene-maxine core-shell powder and lithium titanate in a solvent, freeze-drying, and then pulverizing; and calcining the silicon-graphene-maxine core-shell composite material powder, cooling, and mixing with fluorine-based polymer to obtain product. USE - Manufacture of silicon-graphene-maxine-containing negative electrode material for composite secondary battery (claimed). ADVANTAGE - The negative electrode material has high charge-discharge capacity, high stability, such as reduction in volume expansion rate, and high electrical conductivity and stability while lowering the manufacturing cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for silicon-graphene-maxine-containing composite secondary battery which is prepared by applying the negative electrode material on a current collector using an electrospray method.