▎ 摘　　要

NOVELTY - A graphene/alpha nickel hydroxide nanometer composite material preparing method involves preparing a graphite oxide aqueous solution by dissolving graphite oxide in water, performing ultrasonic oscillation and adjusting pH value to 10. Chemical reduction is performed by using the graphite oxide aqueous solution with hydrazine hydrate, refluxing and stirring the mixture to obtain graphene. The reduced graphene, divalent soluble nickel and urea (4 mol/l) are mixed and reflowed in water alcohol solvents followed by refluxing and stirring, washing and drying to obtain finished product. USE - Method for preparing graphene/alpha nickel hydroxide nanometer composite material. ADVANTAGE - The method enables preparing composite material with excellent electrochemical property, high production efficiency and short period in a simple manner. DETAILED DESCRIPTION - A graphene/alpha nickel hydroxide nanometer composite material preparing method involves preparing a graphite oxide aqueous solution by dissolving graphite oxide (0.05-0.2%) in water, performing ultrasonic oscillation and adjusting the pH value to 10. Chemical reduction is performed by using the graphite oxide aqueous solution with hydrazine hydrate (80%) at ratio of 1:100, refluxing and stirring the mixture at 80-100 degrees C for 5-24 hours to obtain graphene. The reduced graphene, divalent soluble nickel and urea (4 mol/l) are mixed and reflowed in water alcohol solvents (5 g/l) followed by refluxing and stirring at 100 degrees C for 3-5 minutes, washing and drying to obtain finished product.