Preparation method of Ni-MOF electrode material

Disclosed in the invention is a preparation method of a Ni-MOF electrode material. A nicdel nitrate aqueous solution with the total concentration of 0.0075 to 0.43mol/l is added into a PTA/DMF solution with the total concentration of 0.005 to 0.03 mol/l, wherein the adding speed is 2 to 5ml/min and the volume ration of the nicdel nitrate aqueous solution to the terephthalic acid solution is 1.5-3 :1; after dissolution stirring of 1 to 2 hours, a precursor solution is obtained; solvothermal reaction is carried out on the precursor solution for 12 to 48 hours in a hydro-thermal kettle with the temperature of 120 to 200 DEG C, centrifugal washing and filtering are carried out on an obtained green precipitate respectively by DMF and absolute ethyl alcohol, and drying is carried out under the temperature of 80 DEG C, thereby obtaining a Ni-MOF electrode material. According to the preparation method, the specific capacitance of the material can be up to 1500F/g; after 3000-times charging and discharging circulation, 90% of specific capacitance still can be kept. The method is simple and can be controlled easily; the conditions are mild; and the production cost is low.