Pole piece cold-pressing device for lithium battery production

Abstract

The invention discloses a pole piece cold-pressing device for lithium battery production. The device comprises an installing plate, a flat plate, a first vertical plate, fixed strips, round holes, concave holes, iron rods, mating holes, springs, an electromagnet, sliding slots, sliding blocks, a first roller, a first connecting shaft, fixed plates, a second vertical plate, a second roller, a screw, a ball nut, a lantern ring, a guide rod, a reduction box, a first rotary shaft, a first gear, a second rotary shaft, a second gear, a third gear, a fourth gear, a servo motor, a second connecting shaft, installing holes, straight pipes, suction nozzles, connecting rods, fixed covers, distance sensors, connecting pipes, T-pipes, suction motors, a display screen, a single-chip microcomputer and centrifugal impellers. According to the device, through a lifting structure and the internal structure of the reduction box, ascending and descending of the first roller in the vertical direction can beeffectively realized, therefore, the distance between the first roller and the second roller can be adjusted, a pole piece can be pressed into a required thickness, and meanwhile the adjusted numbercan be displayed on the display screen in real time.

Description

technical field [0001] The invention relates to a pole piece cold pressing device, in particular to a pole piece cold pressing device for lithium battery production, which belongs to the technical field of lithium battery production, processing and application. Background technique [0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution; 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, the above problems have been gradually overcome, and lithium batteries have become the mainstream at present. [0003] During the production of lithium batteries, the slurry of lithium batteries needs to be coated to form pole pieces, and then the pole pieces are cold-press...

AI Technical Summary

Problems solved by technology

[0003] During the production of lithium batteries, the slurry of lithium batteries needs to be coated to form pole pieces, and then the pole pieces are cold-pressed by pressing rollers to form a specified thickness; while the current cold-pressing device, the distance between the pressing rollers is When adjusting, the feed amount may be large, the distance may not be fine-tuned, and the real-time display of the adjusted value may be lacking, which may cause a large error in the adjustment of the pressure roller; When the sheet flows through an external device, the surface may be covered with dust in the air. When the electrode sheet is processed, it may damage the quality of its processing, which may affect the quality of the lithium battery.

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