Positive electrode slurry and stability evaluation method and application thereof

The invention relates to the technical field of lithium ion batteries, in particular to positive electrode slurry and a stability evaluation method and application thereof. The evaluation method comprises the following steps: preparing first standard positive electrode slurry; taking a first sample from the to-be-detected positive electrode slurry, placing the first sample on the liquid level of the first standard positive electrode slurry, and making the following judgment within the preset time: when the layering phenomenon is observed and maintained, judging that the stability of the to-be-detected positive electrode slurry does not conform to the expected stability; and when the mutual mixing phenomenon occurs, judging that the stability of the to-be-detected positive electrode slurry is to be determined. Compared with an evaluation method in the prior art, the evaluation method provided by the invention has the advantages that the to-be-detected positive electrode slurry which does not conform to the exp