▎ 摘　　要

NOVELTY - The preparation of hollow sphere iron(III) oxide/reduced graphene oxide lithium ion battery anode material involves uniformly mixing graphene oxide and deionized water to prepare suspension (A), continuously stirring cetyl trimethylammonium bromide and suspension (A) to obtain mixed solution (B), adding soluble divalent iron salt to mixed solution (B), and uniformly stirring to obtain mixture (C) with ferrous ion, adjusting pH value of mixed solution (C) to obtain mixture (D), reacting the mixture (D) in a microwave hydrothermal reactor to obtain product (E), washing, and drying. USE - Preparation method of hollow sphere iron(III) oxide/reduced graphene oxide lithium ion battery anode material (claimed). ADVANTAGE - The method enables preparation of hollow sphere iron(III) oxide/reduced graphene oxide lithium ion battery anode material with excellent electric conductivity, improved circulating performance of the product, and short reaction time, which effectively relieves the volume expansion, and prevents the occurrence of pulverization of oxide during charging and discharging, by simple, convenient, economical, environmentally-friendly, and industrial process. DETAILED DESCRIPTION - The preparation method of hollow sphere iron(III) oxide/reduced graphene oxide lithium ion battery anode material involves (1) adding graphene oxide into deionized water, uniformly mixing to prepare 0.5-2 mg/ml suspension (A), (2) adding cetyl trimethylammonium bromide into the suspension (A) under stirring condition, continuously stirring for 10-30 minutes until the concentration of cetyl trimethylammonium bromide in the suspension (A) is 0.001-0.2 g/l to obtain mixed solution (B), (3) adding soluble divalent iron salt into the mixed solution (B), and uniformly stirring to obtain mixture (C) with 0.01-0.5 mol/l ferrous ion, (4) adjusting the pH value of the mixed solution (C) to 2-7 to obtain mixture (D), (5) placing the mixture (D) in a microwave hydrothermal reactor, selecting the temperature control mode, reacting at 120-180 degrees C for 0.5-3 hours to obtain product (E), and (6) washing the product (E), and drying.