▎ 摘　　要

NOVELTY - Preparing lithium ion battery pole piece involves coating graphene oxide (GO) on the surface of a current collector, adding an oxygen-containing functional group material to the prepared lithium ion battery slurry, and then applying prepared lithium ion battery slurry to a current collector containing a GO coating layer. USE - Method for preparing lithium ion battery pole piece. ADVANTAGE - The method promotes the adhesion between the material layer and the current collector, effectively overcomes the problem of the current collector falling off during the charge and discharge process, and greatly improves the electrochemical performance of lithium ion batteries.