The invention discloses a
polymer containing an
acridone derivative unit, a preparation method of the
polymer and application of the
polymer in a
zinc ion battery, and aims to solve the problem that the
redox potential of an existing n-type organic material needs to be improved. The preparation method comprises the following steps: adding 10-methyl-2, 7-bis (4, 4, 5, 5-tetramethyl-1, 3, 2-dioxaboro-2-yl)
acridine-9 (10H)-
ketone and 4, 7-dibromo-5, 6-dinitrobenzo [c] [1, 2, 5] thiadiazole into an
organic solvent, heating, stirring and dissolving, adding a catalyst, carrying out a heating
reflux reaction, and purifying to obtain a polymer product. The main chain of the polymer containing the
acridone derivative unit and the benzothiadiazole derivative unit is a
conjugated system, an
electron-deficient unit of the benzothiadiazole derivative is introduced into the
acridone derivative, and the defect of low
redox potential of acridone is overcome. The rigid conjugated skeleton of the polymer enhances the
structural stability, widens the
ion transmission channel, and improves the rate capability of the battery.