Aqueous ternary positive electrode slurry and preparation method thereof

The invention relates to an aqueous ternary positive electrode slurry. The aqueous ternary positive electrode slurry comprises the following raw materials in parts by mass: 90-96 parts of a ternary positive electrode active material, 2-5 parts of a conductive agent, 2-5 parts of an aqueous binder, 0.5-2 parts of a thickening agent and 58-72 parts of deionized water, wherein the water-based binderis an acid modified polyacrylamide binder. The water-based ternary positive electrode slurry is prepared, by using the acid modified polyacrylamide binder, an acid group enables a Li conductive layer to be formed on the surface of a ternary positive electrode active material, so that the reaction between the ternary positive electrode active material and an electrolyte is inhibited, the pH value of slurry is reduced, and the corrosion of alkaline substances in the electrolyte to a pole piece current collector can be avoided after the positive electrode pole piece is prepared; and the binderis stable in electrochemi