▎ 摘　　要

NOVELTY - Preparation of silver-graphene composite material comprises mixing graphene or graphene oxide and water, ultrasonic vibrating, mixing silver nitrate and water, dissolving, adding ammonia dropwise, adding water, stirring, mixing reducing agent and water, mixing silver-ammonia solution, reducing agent solution and graphene solution, reacting, precipitating, filtering, drying, adding water, adjusting pH to 8, filtering, and drying. USE - Method for preparing silver-graphene composite material used for silver-graphene alloy wire (claimed). ADVANTAGE - The method is simple, has high efficiency, and is suitable for large-scale production. The wire has excellent tensile strength, elongation and resistivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of silver-graphene alloy wire which comprises crushing silver-graphene composite material, mixing, isostatic pressing, sintering, heating, and extruding.