NOVELTY - Producing a thin graphene nanoplatelet precursor, comprises: providing (S101) a carbon precursor and a filling material, and mixing the carbon precursor with the filling material to form a uniform mixture; performing (S102) a forming process of the uniform mixture to obtain a composite material; and performing (S103) a heat treatment of the composite material in a gaseous environment to obtain a thin graphene nanoplatelet precursor.    USE - The method is useful for producing a thin graphene nanoplatelet precursor and thin graphene nanoplatelets (all claimed), where the graphene is useful for the development of new-generation thinner and highly conductive electronic devices, and for the manufacture of transparent touch screens, light panels, lithium batteries, super capacitors and solar cells.    ADVANTAGE - The method enables easy, economical and rapid production of the thin graphene nanoplatelet precursor with high quality and efficiency.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for producing thin graphene nanoplatelets, comprising providing the thin graphene nanoplatelet precursor produced, using (S104) an electrochemical method to process the thin graphene nanoplatelet precursor, where the electrochemical method includes an electrolytic solution, and filtering the electrolytic solution to obtain a thin graphene nanoplatelet.    DESCRIPTION OF DRAWING(S) - The figure shows a flow chart of a method for producing a thin graphene nanoplatelet precursor.    Providing a carbon precursor and a filling material, and mixing the carbon precursor with the filling material to produce a uniform mixture (S101)    Performing a forming process of the uniform mixture to obtain a composite material (S102)    Performing a heat treatment of the composite material at a gaseous environment to obtain a thin graphene nanoplatelet precursor (S103)    Using an electrochemical method to process the thin graphene nanoplatelet precursor (S104)    Forming solid thin graphene nanplatelets in the electrolytic solution, and filtering the electrolytic solution to obtain a thin graphene nanoplatelet. (S105)