▎ 摘　　要

NOVELTY - The method involves placing a red phosphorus precursor and reduced graphene oxide powder into a reaction chamber. The red phosphorus precursor and reduced graphene oxide powder heat treated under vacuum at a first temperature that vaporizes the red phosphorus precursor such that red phosphorus structures grow on the reduced graphene oxide powder. The reaction products are cooled down formed in previous step. The red phosphorus structures are nanostructures or microstructures. A red phosphorus precursor and a graphene oxide precursor are placed in a reaction chamber. A reducing environment is established in the reaction chamber. USE - Method for forming anode of sodium ion battery (claimed). ADVANTAGE - The highly accessible synthesis method is provided to prepare flexible and safe anodes with superior electrochemical performance toward Na-ion storage. The flash-heat treatment process reported is simpler and more cost-effective, and thus enables the large-throughput manufacturing of RP anodes. The method can isolate the burning material from oxygen and catalyze char layer formation on the material surface, preventing flame formation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a sodium ion battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the sodium ion battery. Cathode (12) Anode (14) Electrolyte (16) Container (17) Separator (18) Red Phosphorus-graphene oxide composite (20)