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METHOD FOR PRODUCING LAMINATE OF GRAPHENES AND CARBON NANOTUBES, ELECTRODE MATERIAL FORMED OF LAMINATE OF GRAPHENES AND CARBON NANOTUBES, AND ELECTRIC DOUBLE LAYER CAPACITOR USING SAME
METHOD FOR PRODUCING LAMINATE OF GRAPHENES AND CARBON NANOTUBES, ELECTRODE MATERIAL FORMED OF LAMINATE OF GRAPHENES AND CARBON NANOTUBES, AND ELECTRIC DOUBLE LAYER CAPACITOR USING SAME
Provided are a novel method for manufacturing a stack of carbon nanotube and graphene that can improve a capacitor characteristic, an electrode material including the stack of carbon nanotube and graphene, and an electric double-layer capacitor using the same. A method for manufacturing a stack of graphene and carbon nanotube includes a step of dispersing the graphene in an aqueous MOH solution (M represents an element selected from a group consisting of Li, Na, and K) to adsorb MOH on the graphene, a step of heating the graphene with MOH adsorbed thereon that is obtained in the adsorption step in vacuum or in an inert atmosphere in a temperature range of 400°C or more and 900°C or less to form pores in the graphene, and a step of dispersing the carbon nanotube and the graphene with the pores that are obtained in the step of forming the pores in a dispersion medium to stack the carbon nanotube and the graphene with the pores.
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