▎ 摘　　要

NOVELTY - The method involves mixing and subjecting graphene oxide suspension, sodium carboxymethyl cellulose and hydrazine hydrate aqueous solution to a hydrothermal reaction to obtain a graphene hydrogel. The graphene hydrogel is vacuum freeze-dried to obtain a three-dimensional graphene superelastic structure, where a mass ratio of graphene oxide to sodium carboxymethyl cellulose in the graphene oxide suspension is 1 is to 0.01 to 1. USE - Method for preparing three-dimensional graphene superelastic structure for flexible piezoresistive sensor (claimed) used in electronic skin and wearable device. ADVANTAGE - The three-dimensional graphene elastomer has good fatigue resistance and stable current signal under large strain. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an application of the three-dimensional graphene superelastic structure. DESCRIPTION OF DRAWING(S) - The drawing shows a screen shot of three-dimensional graphene superelastic structure longitudinal section different magnification times of scanning electron microscope image.