Preparation method of aqueous positive electrode slurry of sodium-ion battery, pole piece and sodium-ion battery

The invention discloses a preparation method of aqueous positive electrode slurry of a sodium-ion battery, a pole piece and the sodium-ion battery. The preparation method comprises the following steps: S1, material preparation; S2, material mixing; and S3, parameter adjustment. The preparation method of the aqueous positive electrode slurry of the sodium-ion battery has the characteristics of low cost, excellent electrochemical performance, good stability and simple process. 本发明公开了一种钠离子电池水系正极浆料的制备方法、极片及钠离子电池。制备方法包括以下步骤：S1、配料，S2、混料S3、参数调节。本发明的钠离子电池水系正极浆料的制备方法具有成本低廉、电化学性能优异、稳定性好和工艺简单的特点。