Ultrathin modified zinc material with surface 3D pore structure as well as preparation method and application of ultrathin modified zinc material

The invention discloses an ultrathin modified zinc material with a surface 3D pore structure as well as a preparation method and application of the ultrathin modified zinc material. The ratio I (002)/I (100) of the crystal face (002) to the crystal face (100) on the surface of the zinc material is greater than or equal to 1; the aperture of the 3D pore structure on the surface of the zinc material is 0.5-5 [mu] m. The zinc material is obtained by etching the surface of the zinc foil with a sulfamic acid solution, and directional regulation and control of the microstructure on the surface of the zinc foil can be realized only by regulating and controlling the solution concentration and the etching time. Based on the specific surface structure and crystal face ratio of the zinc material, the aqueous zinc metal battery prepared by taking the zinc material as a battery negative electrode has excellent comprehensive performance, and particularly, the growth of zinc dendrites can be effectively inhibited by utilizi