▎ 摘　　要

NOVELTY - Preparation of binderless graphene/tin dioxide composite electrode by laser irradiation in situ comprises mixing graphene oxide and tin dioxide sol to obtain precursor sol, coating sol on the surface of copper foil, placing in vacuum oven, drying, selecting laser energy density reference value, selecting laser by laser energy density reference value, setting laser process parameters, using laser to irradiate prefabricated foil, testing characteristics of transformed product, analyzing and introducing protective gas. USE - Method of preparing binderless graphene/tin dioxide composite electrode by laser irradiation in situ (claimed). DETAILED DESCRIPTION - Preparation of binderless graphene/tin dioxide composite electrode by laser irradiation in situ comprises mixing graphene oxide and tin dioxide sol to obtain precursor sol, coating sol on the surface of copper foil, placing in vacuum oven, drying, selecting laser energy density reference value according to physical parameters of transition from precursor to graphene/tin dioxide nanocomposites, selecting laser by laser energy density reference value, setting laser process parameters, using laser to irradiate prefabricated foil, testing characteristics of transformed product, analyzing to obtain best laser process parameters of graphene/tin dioxide nanocomposites and introducing protective gas to prevent oxidation of graphene.