Positive electrode slurry for sodium ion battery and preparation method for positive electrode slurry

The invention provides positive electrode slurry for a sodium ion battery and a preparation method for the positive electrode slurry, and applicable to slurry preparation for the positive electrode material of the sodium ion battery with a high pH value. The slurry provided by the invention comprises a positive electrode active material, a conductive agent, a binder, a regulator and a solvent; and the regulator comprises four kinds of organic compounds, including organic acid, acid anhydride, carboxylic ester and cyclohexanone. By virtue of the added regulator, an obvious suppression effect is achieved on slurry gelatinization, so that the slurry is high in mobility and stability; and therefore, the coating effect is improved, the surface density uniformity of an electrode plate is improved, the consistency of the electrode plates is improved, and the consistency of the battery is obviously enhanced. The preparation method for the slurry provided by the invention comprises the five steps of preparing material