Positive electrode material, positive plate, dual-ion battery and preparation method

The invention belongs to the field of batteries, and particularly relates to a positive electrode material, a positive plate, a dual-ion battery and a preparation method. The positive electrode material comprises a polycyclic aromatic hydrocarbon organic positive electrode material and graphite; the polycyclic aromatic hydrocarbon organic positive electrode material is coated on the surface of graphite. According to the technical scheme, the positive electrode material is obtained by compounding the polycyclic aromatic hydrocarbon organic positive electrode material without the desolvation process with the graphite, and the surface of the graphite is coated and mixed with the polycyclic aromatic hydrocarbon organic material without the desolvation process, so that the solvation process of cations is reduced to zero, the available capacity of the dual-ion battery is improved, and the service life of the dual-ion battery is prolonged. The polycyclic aromatic hydrocarbon organic material coats the surfaces of th