▎ 摘　　要

NOVELTY - Nanocomposite material comprises base material comprising nitrogen-doped graphene and zinc, where the mass ratio of nitrogen-doped graphene and zinc is 1:3-1:10, and the volume of the gas is 2%. USE - As nanocomposite material. ADVANTAGE - The material prevents agglomeration of graphene layer and other layer, and has increased electrochemical property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for method for preparing the material, which involves performing ultrasonic dispersion of oxidized graphite to obtain graphene oxide solution, dissolving zinc nitrate and ferric nitrate in deionized water, uniformly stirring mixture, adding metal salt solution into graphene oxide solution, stirring mixture, adding urea to obtained mixture, where the mass ratio of urea and graphite oxide is 100:1-200:1, adding mixture into hydrothermal kettle, performing reaction at 120-200 degrees C, performing centrifugal separation, washing obtained product with deionized water, and drying nanocomposite material.