Stirring equipment with premixing function for battery production

Abstract

The invention provides battery production stirring equipment with a premixing function. The battery production stirring equipment comprises a screw stirrer body and a premixing device mounted at the top of the screw stirrer body, and the premixing device comprises a liquid supply mechanism and a powder feeding mechanism; the liquid supply mechanism comprises a liquid spraying pipe, the liquid spraying pipe is arranged in the middle of the powder feeding mechanism in a penetrating mode, and the liquid spraying pipe can spray liquid to the periphery of the outer side of the bottom; the powder feeding mechanism can feed powder downwards, a feeding area is in a circular-ring-shaped outline, and the fed powder makes contact with liquid diffusing towards the periphery to be premixed. The device is novel in structure, can preliminarily mix fed liquid and powder, and is also convenient for uniformly distributing and feeding subsequently added materials, so that the subsequent stirring and mixing time is shortened, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of stirring equipment, and more particularly, to a stirring equipment for battery production with a premixing function. Background technique [0002] In the production process of lithium batteries, the raw materials of lithium batteries include binders, conductive agents, positive electrode materials, graphite carbon powder, etc. to form positive and negative electrodes. The preparation of positive and negative electrode slurries include liquid and liquid, liquid and solid. A series of processing techniques such as mixing, dissolving and dispersing are carried out between materials, and the process is accompanied by changes in temperature, viscosity and environment. [0003] Therefore, the lithium battery slurry needs to be stirred and mixed first, mainly including the mixing of powder and liquid, in which different raw materials have to be added in sequence, and most of the current stirring settings are to put the su...

AI Technical Summary

Problems solved by technology

[0003] Therefore, the lithium battery slurry needs to be stirred and mixed first, mainly including the mixing of powder and liquid, in which different raw materials have to be put in order, and most of the current stirring settings are to put the subsequent added materials directly after the initial mixing. In the mixed slurry or viscous material, the subsequent added materials are too concentrated, or have not been mixed initially, which is not convenient for subsequent mixing and mixing, prolongs the subsequent processing time, and affects the overall efficiency. It needs to be improved.

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