▎ 摘　　要

NOVELTY - The method involves dispersing the oxidized graphene in water for ultrasonic. The aluminum salt and sodium salt is respectively added and ultrasonically dispersing to obtain uniformly mixed suspension, heating and stirring for a period of time. The obtained primary product is filtered. The drying and grinding and finally calcining are provided to obtain sheet beta aluminium oxide. USE - Preparation method of flaky beta aluminium oxide used as ion conductor in energy storage field such as sodium-sulphur battery, nickel-sodium battery and sodium heat machine. ADVANTAGE - The method uses the oxidation graphene as the simple template, by simple operation, it can prepare the sheet beta aluminum oxide uniform shape, with simple technique, good repeatability and pure characteristics, and the obtained sheet aluminium oxide uniform in shape with high conductivity, which plays a great role in the energy storage field. The method is simple, high repeatability, convenient for mass production of preparation method. DESCRIPTION OF DRAWING(S) - The drawing shows a display screen of the scanning electron microscope image.