▎ 摘　　要

NOVELTY - The utility model claims a graphene capacitor, belonging to the field of electrical element, comprising a silicon carbide support layer, stacked in this order on the silicon carbide support layer provided with an electrode layer and an insulating medium layer, the electrode layer than the insulating medium layer 1 layer. the insulating medium layer and the adjacent electrode layer forming a capacitor unit, the electrode layer of at least one layer made of graphene, the insulating medium layer is made of silicon carbide or a piezoelectric material, the thickness of the insulating medium layer is 50nm-800nm; The number of capacitor units is 1-500. graphene capacitor of this utility model has good conductivity, large specific surface area and large capacitance.