Electrolyte vacuum stirring and debubbling device with automatic cleaning function

Abstract

The invention discloses an electrolyte vacuum stirring and debubbling device with automatic cleaning function, which includes a main controller, a vacuum stirring device, a liquid storage device, an automatic cleaning device and a liquid injection device, and aims at injecting the liquid storage device toward the liquid injection device. The liquid action is equipped with a liquid injection pump and a liquid injection pump controller for controlling the frequency and volume of liquid injection; through the setting and cooperation of the vacuum stirring device and the liquid storage device, double Electrolyte bubble removal treatment. Under the action of the liquid injection pump controller and the liquid injection pump, the electrolyte after removing the bubbles is accurately injected towards the liquid injection device according to the corresponding liquid injection frequency and liquid injection volume, ensuring that the electrolyte in the battery There are no bubbles in the electrolyte; the automatic cleaning device can automatically clean the liquid injection pump, liquid storage device, liquid injection device, etc., to prevent the residual electrolyte from crystallizing and solidifying and affecting the stability and reliability of the subsequent liquid injection process; The device has a high degree of automation and is easy to operate and manage.

Description

technical field [0001] The invention relates to the technology in the field of battery production equipment, in particular to an electrolyte vacuum stirring and debubbling device with an automatic cleaning function. Background technique [0002] When making a lithium battery, the positive electrode, the negative electrode and the separator are usually made into a pole core, and then the pole core is put into the battery shell and covered with a cover plate; usually, a liquid injection hole is provided on the cover plate, through which the The liquid injection hole injects the electrolyte into the battery. The quality of the electrolyte and the amount of liquid injection directly determine the quality of the lithium battery. [0003] In the existing battery production process, more air bubbles are generated in the liquid injection pipeline, that is, there will be more air bubbles in the electrolyte, which often leads to dripping and unstable injection accuracy during liquid i...

AI Technical Summary

Problems solved by technology

[0003] In the existing battery production process, more air bubbles are generated in the liquid injection pipeline, that is, there will be more air bubbles in the electrolyte, which often leads to dripping and unstable injection accuracy during liquid injection. However, there are more air bubbles in the injected electrolyte, which affects the battery capacity and cycle life, and also reduces the product quality.

[0004] In addition, liquid injection devices and liquid storage tanks are prone to crystallization and solidification after a long period of time, resulting in pipeline blockage and affecting the subsequent liquid injection process. The solidification of liquid crystals is more prone to clogging. For example, after a period of holidays in the factory, it is often found that the equipment cannot perform the liquid injection process well when the factory restarts. At this time, manual cleaning is also troublesome, time-consuming, and the treatment effect is not good. ideal

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