▎ 摘　　要

NOVELTY - Hydrogen storage alloy preparation involves mixing graphene oxide and deionized water in a mass ratio of 1:2000-50000 with stirring for 30-45 minutes to obtain graphene oxide solution. A transition metal salt is added to the graphene oxide solution to obtain a mixed solution, where the metal salt solution has a concentration of 1-5 g/l. The hydrogen storage alloy powder is added to the mixed solution in a mass ratio of 1000:1-10. A reducing agent is also added to the mixed solution containing hydrogen storage alloy with stirring and reducing for 5-24 hours, and then suction filtered and washed to obtain the hydrogen storage alloy coated with a graphene oxide-metal composite. USE - Method for preparing hydrogen storage alloy for negative electrode material for nickel-hydrogen battery (claimed). ADVANTAGE - The method prepares the hydrogen storage alloy in a simple, cost-effective and eco-friendly manner with increased specific surface area, electrocatalytic activity and conductivity, and improved electrochemical performance.