▎ 摘　　要

NOVELTY - Method for preparing cellulose loaded-graphene composite carbon aerogel, involves (i) adding cotton cellulose to sodium hydroxide solution, (ii) placing the mixed solution obtained in step (i) at low temperature, mixing with the graphene oxide solution at low temperature, and stirring to obtain a cellulose loaded-graphene oxide mixed solution, (iii) pouring the cellulose loaded-graphene oxide mixed solution obtained in step (ii) to a mold, and leaving still at room temperature to obtain a cellulose loaded-graphene oxide hydrogel, (iv) freeze-drying the cellulose loaded-graphene oxide hydrogel obtained in step (iii) to obtain a cellulose loaded-graphene oxide aerogel, and (v) subjecting the cellulose loaded-graphene oxide aerogel obtained in step (iv) to high-temperature pyrolysis to obtain the cellulose loaded-graphene composite carbon aerogel. USE - The method is used for preparing cellulose loaded-graphene composite carbon aerogel in electrode structure that induces directional growth of lithium dendrites (claimed) to protect battery diaphragm. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a cellulose loaded-graphene composite carbon aerogel prepared by the above method; and (2) the use of the cellulose loaded-graphene composite carbon aerogel in an electrode structure that induces directional growth of lithium dendrites, which involves placing the cellulose loaded-graphene composite carbon aerogel between lithium metal negative electrode and current collector to obtain a composite carbon aerogel-lithium composite electrode, or using the cellulose loaded-graphene composite carbon aerogel as an interlayer and placing between the battery separator and the lithium metal negative electrode to obtain a lithium-composite carbon aerogel electrode, or soaking the cellulose loaded-graphene composite carbon aerogel in 40 mg/ml zinc acetate aqueous solution, pyrolyzing at 600 degrees C under nitrogen atmosphere to obtain composite carbon aerogel loaded zinc oxide composite material, heating the metal lithium at 350 degrees C, melting and pouring to the composite carbon aerogel loaded zinc oxide composite material to obtain the composite carbon aerogel loaded lithium composite electrode, where the content of lithium metal is 50 mg/cm-2.