Separation equipment for current collector and active material of waste pole pieces

Abstract

The invention provides a waste pole piece current collector and active material separating device. The device comprises a separation and stirring machine and a liquid storage tank, the separation and stirring machine comprises a separation barrel and a stirrer, a coarse filter screen and a precise filter screen are sequentially horizontally arranged in the separation barrel from top to bottom, the sidewall of the separation barrel positioned above the coarse filter screen is provided with a liquid injection opening, and the bottom of the separation barrel is provided with a liquid discharge opening; and the liquid injection opening is connected with the outlet of the liquid storage tank through a high pressure pump, and the liquid discharge opening is connected with the return opening of the liquid storage tank through a normal pressure pump. Thorough separation of current collectors and materials is realized by effectively utilizing immersion of a cleaning solution, stirring of the stirrer, high-speed liquid flow flushing provided by the high pressure pump and the centrifuge effect, and the cleaning solution adopted in the process can be recycled and does not cause cleaning material pollution wastes, so the separation cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of recycling waste lithium ion batteries, and in particular relates to a separation device for a current collector of waste pole pieces and an active material. Background technique [0002] Lithium-ion batteries are more and more widely used in various fields of modern society because of their excellent electrochemical performance. Especially in recent years, with the development of new energy automobile industry, more and more lithium-ion batteries have been widely used. It should be noted that lithium-ion batteries have a certain life cycle. When the lithium battery reaches its life cycle, a large number of waste lithium batteries will be generated. If these waste lithium batteries are not processed and recycled, it will cause serious environmental pollution. question. Therefore, it is of great significance to recycle waste lithium batteries, which will not only create huge economic value, but also allevi...

AI Technical Summary

Problems solved by technology

At present, the method of separating the current collector and the material of the pole piece is generally to use the method of chemical treatment first, then use the method of stirring and crushing, and finally realize the separation of the active material and the current collector through the method of classification and screening. This traditional The separation device generally has the problem of incomplete separation between the current collector and the positive and negative active materials, and the need for secondary classification and screening, and the efficiency is relatively low

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