▎ 摘 要
NOVELTY - Making holes in graphene comprises utilizing the metal substrate of the graphene without removing the metal substrate to react with the added element to generate the compound with bump or spine shape, piercing the graphene covered on the metal substrate, and removing the metal substrate by subsequent treatment to obtain the porous three-dimensional graphene. USE - The method is useful for making holes in graphene. ADVANTAGE - The graphene material has good performance, excellent product appearance, simple operation, higher petition rate, low requirement to the experimental device, three-dimensional graphene after surface pore making can be used as electrode in the battery system, and improves the performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for method for removing the metal substrate used for growing comprises acid etching method and electrochemical corrosion method.