Vacuum stirring equipment of lithium battery slurry

Abstract

The invention discloses vacuum stirring equipment of lithium battery slurry. The vacuum stirring equipment of the lithium battery slurry comprises a material tank, wherein the material tank comprisesa tank body and a cover body hermetically matched with the tank body, a stirring device arranged in the tank body and used for driving materials at the upper part of the tank body to the lower part ofthe tank body, a cleaning part arranged on the cover body and used for cleaning the inner wall of the tank body and the stirring device, a vacuuming part used for pumping air in the material tank, and an ultrasonic part arranged on the material tank and used for shattering large-particle materials in the material tank. According to the invention, the cleaning part is arranged on the cover body toenhance the uniformity of the whole slurry and improve overall performance of a lithium battery. The mounting mode simplifies the cleaning effect on the interior of the material tank, and does not require additional manual cleaning, to reduce the workload of manual operation.

Description

technical field [0001] The invention belongs to the technical field of lithium battery manufacturing, and in particular relates to a vacuum stirring equipment for lithium battery slurry. 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 includes liquid and liquid, liquid and solid A series of processing processes such as mixing, dissolving, and dispersing are carried out between materials, and the process is accompanied by changes in temperature, viscosity, and environment. [0003] In the slurry of the positive and negative electrodes, the dispersion and uniformity of the granular active material will affect the movement of lithium ions between the two electrodes of the battery. Therefore, whether the lithium ion b...

AI Technical Summary

Problems solved by technology

[0003] In the slurry of the positive and negative electrodes, the dispersion and uniformity of the granular active material will affect the movement of lithium ions between the two electrodes of the battery. Therefore, whether the lithium ion battery slurry is dispersed and mixed will directly affect the lithium battery. performance; and after the lithium battery slurry is mixed and discharged, part of it will remain in the vacuum mixer, and it needs to manually pull the pipeline to clean the vacuum mixer every time. In this process, it is inconvenient to clean and requires a lot of manpower and material resources. Moreover, it cannot be guaranteed that the inner wall of the mixer is cleaned in place during the cleaning process.

Images