▎ 摘　　要

NOVELTY - The method involves adding a precursor of dispersing agent with surface active agent. Inlet temperature and exit temperature are regulated for about 150 to 240 and 80 to 130 degrees centigrade, respectively. Spray pyrolysis ions are doped into manganese dioxide (MnO2)/graphene electrode material. An XRD test crystal structure of the manganese dioxide/graphene electrode material is formed. Capacity ratio of the manganese dioxide/graphene electrode material is determined by a three-electrode system. USE - Hydro-thermal spray pyrolysis manganese dioxide/graphene electrode material preparing method. ADVANTAGE - The method enables effectively preparing a nano-composite electrode material component with better uniformity and stability. DESCRIPTION OF DRAWING(S) - The drawing shows a photographic view of hydro-thermal spray pyrolysis manganese dioxide/graphene electrode material.