▎ 摘　　要

NOVELTY - The preparation method of nitrogen-sulfur doped three-dimensional graphene involves directly injecting nitrogen source and sulfur source using micro-injection pump on a foamed nickel substrate at 600-800 degrees C and at rate of 5-20 ml/hour for 1-5 minutes in an atmosphere of 500-1000 sccm argon and 50-100 sccm hydrogen. USE - Preparation method of nitrogen-sulfur doped three-dimensional graphene used in lithium ion electrode and electro-catalytic application. ADVANTAGE - The method enables preparation of nitrogen-sulfur doped three-dimensional graphene with low toxicity, strong controllability, large specific surface area, 20 mA/g current, maximum capacity of more than 500 mAh/g, and excellent performance, by simple process.