▎ 摘　　要

NOVELTY - Preparing graphene/silicon-based cathode pole piece comprises (i) dispersing graphite oxide in deionized water, and controlling the viscosity through a homogenizer to obtain graphene oxide slurry, (ii) adding silicon-based materials and bonding agent to planetary mixer for the first stirring, adding the graphene oxide slurry, and uniformly stirring for the second time until to obtain graphene oxide/silicon-based slurry material, (iii) coating the graphene oxide/silicon-based slurry on the cathode current collector, and drying in an oven to obtain the graphene oxide/silicon-based cathode sheet, and (iv) carrying out thermal reduction to graphene oxide/silicon cathode sheet. USE - The method is useful for preparing graphene/silicon-based cathode pole piece. ADVANTAGE - The method relieves the volume expansion of the silicon-based cathode and provide electron migration channels. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: Graphene/silicon-based cathode sheet. Lithium-ion battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view showing an oxide graphene silicon base plate. 1Graphene/silicon-based cathode 2Silicon-based material