Preparation and treatment method of copper-coated graphite composite powder

The invention discloses a preparation and treatment method of copper-coated graphite composite powder, and relates to the technical field of graphite powder. The method is characterized in that crystalline flake graphite or artificial graphite is used as a coating core, copper sulfate pentahydrate is used as a copper source, deionized water is used as a solvent, a dispersing agent, an acidity regulator, an inorganic reducing agent and the like are added, through chemical replacement reaction, copper ions in copper sulfate are chemically plated on the surfaces of graphite particles, after the reaction is completed, a solid antioxidant is directly added into a reaction solution, then composite powder is washed with deionized water to be neutral, dehydration and drying are conducted, and the final copper-coated graphite composite powder is obtained. According to the method, after anti-oxidation treatment is adopted, the oxidation resistance of the copper-coated graphite composite powder is obviously enhanced; af