▎ 摘　　要

NOVELTY - Defective disordered layer stacking graphene assembled battery material, is new, where the structure is in fold state graphene balls wrapped nano-silicon particles, the thickness of graphene is between 20-120 atomic layers, the defect degree of graphene is ID/IG between 0.2-0.04, and the graphene layers are stacked in a completely disordered structure. USE - The graphene assembled battery material is useful for preparing high-quality capacity battery. ADVANTAGE - The material has a completely disordered layer stacking structure, a local defect state and a controllable silicon filling volume of the internal space, provides capacitance, and electrolyte in and out channels to improve the Coulomb efficiency of defective structure, has chaotic layer stacking structure to facilitate the interlayer of graphene layers, increases the interlayer ratio, and increases the capacitance and charge and discharge speed, and increases the battery capacity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing defective disordered layer stacking graphene assembled battery material, involving (i) putting graphene oxide in 30-50% hydrogen peroxide and heating at 60-80 degrees C for 2-12 hours to obtain a highly defective graphene oxide solution with rich void structure, where the content of hydrogen peroxide in the highly defective graphene oxide solution is 10-20 %mass, (ii) uniformly mixing silica nanoparticles and highly defective graphene oxide solution, forming graphene oxide coated silica structure by spraying, and obtaining reduced graphene oxide microspheres coated silica structure after chemical reduction, where the concentration of the highly defective graphene oxide in the mixed solution is less than 0.1 mg/ml, and the mass ratio of silica nanoparticles and highly defective graphene oxide is 1:6-1:20, (iii) heating the reduced graphene oxide microspheres wrapped with silica structure to 1000 degrees C at a heating rate below 30 degrees C/minute under the protection of nitrogen, maintaining for 1-4 hours, passing in 5 vol.%/vol.% hydrogen and steadily increasing the temperature to 1400 degrees C for 2-6 hours to completely reduce silica nanoparticles to silicon nanoparticle material, and (iv) placing the graphene-coated silicon nanoparticle material in a microwave device, and heating at a high speed at 2000-2300 degrees C at a heating rate of 500-1000 degrees C/minute and maintaining for 1-30 seconds to evolve porous structure into a relatively densely packed fold shape.