▎ 摘　　要

NOVELTY - Method of recycling waste lithium ion battery cathode graphite plate comprises ball milling cathode graphite plate into graphite powder, mixing with reducing agent, adding N-methylpyrrolidone, and performing ultrasonic treatment to obtain graphene suspension. USE - The method is recycling of waste lithium ion battery cathode graphite plate into cathode electrode used for preparing fruit-vegetable cleaner (claimed). ADVANTAGE - The hydrogen peroxide produced by the electrode has high concentration and high efficiency and can quickly treat pesticide residues on surface of fruit and vegetable.