Negative electrode paste containing ultra-small negative electrode active particles, preparation method of negative electrode paste, negative electrode pole piece and lithium metal battery

The invention provides negative electrode slurry containing ultra-small negative electrode active particles, a preparation method of the negative electrode slurry, a negative electrode plate and a lithium metal battery. The preparation method of the negative electrode slurry comprises the following steps: defining the weight ratio of the total binder to the ultra-small negative electrode active particles as K: 1, and the D50 and the specific surface area of the ultra-small negative electrode active particles, and obtaining the weight of the total binder according to the weight of the ultra-small negative electrode active particles; and mixing the slurry raw materials to obtain the negative electrode slurry. According to the invention, the range of K, the solid content of the wet material in the pulping process and the solid content, viscosity and fineness range of the final negative electrode slurry are limited; the problems that in the pulping process, the structure of ultra-small negative electrode active p