▎ 摘　　要

NOVELTY - The utility model claims a graphene battery negative electrode material protecting device, comprising a storage tank, the top screw thread of the storage box is connected with a box cover, one side of the storage box is provided with an air inlet hole, the air inlet hole is connected with an air inlet pipe, the air inlet pipe is provided with an air inlet valve, the other side of the storage box is provided with an air outlet hole; the air outlet hole is connected with an air outlet pipe, the air outlet pipe is provided with an air outlet valve; the air outlet pipe is provided with an oxygen enrichment membrane. The utility model delivering carbon dioxide gas into the storage tank through the inlet pipe, and the gas storage tank is discharged from the gas outlet pipe, due to the effect of the oxygen-enriched membrane, storing the oxygen tank is discharged firstly, then closing the air inlet valve and air outlet valve, the probability effectively reduces the oxygen content in the storage box so as to reduce the graphene when storing happen oxidation reaction, to realize the protection of the graphene material.