Automatic coating control method and system

Abstract

The invention discloses an automatic coating control method and an automatic coating control system. The automatic coating control system comprises a coating production line control system, a data transmission network, a coating steel roller, a double-faced penetration-type beta sensor, a coating cavity, a pressure detection sensor, a feeding tank, a feeding pump, a feeding pipeline, a coating production line and a drying box, wherein a battery pole piece is allowed to pass through a coating production line; the coating production line control system is used for controlling production; the battery pole piece is produced through the coating cavity, the coating steel roller and the drying box; the pressure detection sensor is mounted on the coating cavity; after the double-faced penetration-type beta sensor is mounted on the drying box, detected data are transmitted to the coating production line control system through the data transmission network; the feeding tank is used for feeding slurry to the coating cavity through the feeding pump and the feeding pipeline. The automatic coating control system is simple in structure and reasonable in design, manual intervention to adjustment of the slurry feeding amount in the coating process is reduced, automatic regulation is achieved, and the hysteresis phenomenon of surface density adjustment in the coating process is reduced.

Description

technical field [0001] The invention relates to the field of battery manufacturing, in particular to an automatic control coating method and a control system. Background technique [0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. The earliest lithium battery came from the great inventor Edison, using the following reaction: Li+MnO2=LiMnO2 This reaction is a redox reaction, discharge. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have become the mainstream now. [0003] Lithium battery refers to the most basic electrochemical unit of lithium, including metal lithium, lithium alloy, lithium ion and lithium polymer. Lithium b...

AI Technical Summary

Problems solved by technology

In the traditional pole piece coating method, the operator checks the surface density by sampling samples based on coating experience. This method has certain quality risks and will cause equipment shutdown, thereby affecting production efficiency and product qualification rate.

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