Method for disassembly and classification collection of electrical core and device for disassembly and collection of electrical core by using the method

Abstract

The invention relates to a method for disassembly and classification collection of electrical core and a device for disassembly and collection of electrical core by using the method. The method is as below: pulling out a plastic diaphragm in the electric core from the body; stretching and pulling a stretching end of the plastic diaphragm to pass through a slit arranged on a baffle plate and with width suitable for plastic diaphragm to pass through and capable of blocking a positive pole piece and a negative pole piece, and pasting and winding the plastic diaphragm on a core cylinder; and rotating the core cylinder to wind the plastic diaphragm continuously on the core cylinder, so that the positive pole piece and the negative pole piece are retained and spalled by baffles surrounding the slit. The invention also provides a device for disassembly and collection of electrical core. The device comprises a frame; the frame is provided with the core cylinder capable of rotating around the own axis and for winding the plastic diaphragm; the frame is provided with the baffle plate; and the baffle plate is provided with a slit with width suitable for plastic diaphragm to pass through and capable of blocking the positive pole piece and the negative pole piece. The invention has advantages of simply operated method, simple device structure and strong versatility, and is suitable for classification collection of lithium ion power battery of winding and lamination type.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a method for dismantling, classifying and recycling battery cells and a device for dismantling and recycling battery cells using the method. Background technique [0002] Lithium-ion power battery is a new type of energy storage battery that has developed rapidly in recent years, and is promoted by the policy of new energy projects in the national "Twelfth Five-Year Plan". The application of lithium-ion power batteries will expand rapidly within the past five years , the application fields involve pure electric vehicles, hybrid vehicles and wind energy storage, etc. Due to the limited life of lithium-ion power batteries, the cycle life of domestic lithium batteries is less than 3,000 times, which means that after 5 years, the country will face a large number of waste batteries solving issues. Lithium-ion power batteries cannot be degraded, and the electrolyte in th...

AI Technical Summary

Problems solved by technology

The crushing method is adopted for the recovery of mobile phone lithium-ion batteries, but this method cannot classify and recycle the various parts of the battery, especially the positive and negative active materials and current collectors are mixed together, and the subsequent treatment cannot separate the positive and negative active materials. extracted separately

The used battery has been charged and discharged many times, and the positive and negative electrodes of the cell adhere to the separator, and occasionally the electrode and the separator are adhered due to internal short circuit.

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