Raw material mixing method in lithium manganate material wet production technology

Abstract

The invention discloses a raw material mixing method used in a lithium manganate material wet production technology. The method comprises steps of ball-milling with added water, spray-drying, mixing and sintering. In the step of ball-milling with added water, an electrolyte or a solution thereof is added in, wherein the weight of the added electrolyte or the solution thereof is 0.05 to 2% of that of an aqueous medium. With the raw material mixing method used in the lithium manganate material wet production technology, defects in prior arts of low solid content, high aqueous medium addition, high viscosity, poor dispersion effect, long mixing time, high energy consumption and high cost can be overcome; and advantages of high solid content, low aqueous medium addition, low viscosity, good dispersion effect, short mixing time, low energy consumption and low cost can be realized.

Description

technical field

[0001] The invention relates to lithium manganate production technology, in particular to a raw material mixing method in the wet production process of lithium manganate material. Background technique

[0002] At present, the production methods of lithium manganate include dry production and wet production, among which, the mixing effect of wet production is better, and the cost of dry production is relatively low.

[0003] Generally, in the wet production of lithium manganate, after mixing the raw materials with water, the solid content is generally 60-75%, the materials are mixed evenly, the slurry is stable, and a certain viscosity can be guaranteed, so as to create benefits for subsequent spray drying. condition.

[0004] However, in the process of realizing the present invention, the inventors found that the prior art at least has defects such as low solid content, large amount of water medium added, high viscosity, poor dispersion effect, long mixing t...