▎ 摘　　要

NOVELTY - Preparation of alpha -manganese oxide/graphene hollow nanotube comprises adding graphene oxide into deionized water and ultrasonically oscillating; adding ascorbic acid, ultrasonically oscillating and mixing; water bath treating at constant temperature to obtain black precipitate; adding deionized water, repeatedly washing with ethanol, and drying; mixing with potassium permanganate and hydrochloric acid; stirring and reacting; and cooling, washing by distilled water to neutral, washing with anhydrous alcohol, and drying. USE - Method for preparing alpha -manganese oxide/graphene hollow nanotube (claimed) used for electrode material. ADVANTAGE - The product shortens diffusion distance of lithium ions in the electrode material and accelerates electrochemical reaction.