▎ 摘　　要

NOVELTY - Preparing niobium pentoxide/graphene lithium ion negative electrode material involves taking niobium oxalate and graphene conductive slurry for subsequent use, adding distilled water, dissolving oxalic acid niobium to form niobium oxalate solution, adding niobium oxalate solution into graphene conductive slurry, and obtaining mixed solution USE - Method for preparing niobium pentoxide/graphene lithium ion negative electrode material. ADVANTAGE - The method effectively reduces the volume expansion shrinkage phenomenon of the battery in the process of charging and discharging is convenient to prepare, improves the preparation efficiency.