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Recycling technology and system of waste battery

A technology of waste batteries and waste lithium batteries, which is applied in the direction of battery recycling, recycling technology, waste collector recycling, etc., can solve the problems of multiple sites, equipment, manpower and other production costs, limit the development of waste battery recycling industry, etc., and achieve reduction Effect of cost recovery and improvement of recovery efficiency

Pending Publication Date: 2018-10-26
荆门动力电池再生技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For enterprises engaged in waste battery recycling, setting up multiple recycling lines to process different types of waste batteries requires a lot of production costs such as site, equipment, and manpower, which limits the development of the waste battery recycling industry

Method used

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  • Recycling technology and system of waste battery
  • Recycling technology and system of waste battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Using the above equipment for resource recovery of lithium battery cells:

[0072] The battery cell obtained by dismantling the power battery is sent to the salt water tank of the discharge device 002 through the battery feeding device 001, and soaked for 10 hours to fully discharge. The discharged cells are sequentially passed through the cleaning device 003 and the drying device to remove the salt water entrained in the cells and then dried. The cleaned and dried cells are sent to the first receiving hopper 012 by the material transfer device 025, and sent to the cutting device 005 by the loading and unloading robot 022. The outlet of the cutting device 005 is provided with a cutting knife 021 with two upper and lower blades facing each other. , when the battery core passes through the outlet in the axial direction, the upper and lower blades cut the battery core longitudinally, so that the shell of the battery core is cut open, and the internal diaphragm is exposed. ...

Embodiment 2

[0074] Recycling of positive and negative plates using the above equipment:

[0075] Due to the large volume of waste positive and negative electrodes such as dismantling and recycling or scrapping in the production process, they are firstly crushed by the pole piece shearing machine 023. The shearing effect reduces the volume of large pole pieces on the one hand, and on the other hand It also makes the positive and negative active materials contained in the pole piece be preliminarily separated, and the pole piece waste after shearing is sent to the pyrolysis device 006, and then separated by the same process conditions and equipment as the recycling of lithium battery cells. Positive and negative active material filter cakes and metal recycling materials.

Embodiment 3

[0077] Recycling of dry batteries using the above equipment:

[0078] The waste dry battery is sent to the fourth crushing device 015 through the dry battery feeding device 018, and the fourth crushing device 015 is connected to the first water washing vibrating screen 016 through the material transmission device 025, and is recycled according to the same lithium battery cells and positive and negative plates. The process and conditions are used for the next recycling process, and finally the wet powder of positive and negative active materials and metal recycling materials are obtained.

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Abstract

The invention provides a recycling technology of a waste battery. The technology comprises the steps of: performing crushing and washing vibration screening for several times to any one of lithium battery core waste material acquired by processing a waste lithium battery core, anode and cathode piece waste materials acquired by processing waste anode and cathode pieces, or a waste dry battery, soas to acquire an oversize material-pole piece metal mixture and an undersize material-sizing agent containing the anode and cathode active material; filter pressing the undersize material to acquire wet powder; and, drying and sorting the oversize material to acquire the metal recycling material. The technical scheme provided by the invention at least realizes the effective separation of the wastelithium battery, the recycling pole piece or the waste pole piece, and the metal and the anode and cathode active material in the dry battery; compared with the prior battery recycling technology, the technology significantly reduces the recycling cost of the enterprises and improves the recycling efficiency.

Description

technical field [0001] The present invention relates to the technical field of recycling and processing of power batteries, and in particular, relates to a resource recovery and utilization process of waste batteries and a corresponding equipment system. Background technique [0002] Waste batteries contain a large amount of heavy metals and electrolyte solutions such as waste acid and waste alkali. If they are discarded randomly, they will cause serious damage to land and water sources. The recycling and reuse of used batteries can prevent pollution on the one hand, and reuse the useful components in it to save resources. [0003] There are many types of waste batteries, such as lithium-ion batteries, dry batteries, nickel-metal hydride batteries, etc. Different types of batteries have different internal structures, and the materials that make up the batteries are also different. For example, lithium-ion batteries generally include shells, positive electrodes, negative elec...

Claims

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Application Information

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IPC IPC(8): H01M10/54
CPCH01M10/54Y02W30/84
Inventor 许开华张宇平张云河张浩杨瑞卿龚道年党秀忠
Owner 荆门动力电池再生技术有限公司