Efficient dissociation and sorted collection method for each component of waste lithium ion batteries

A technology for lithium-ion batteries and waste lithium batteries, which is applied in the field of high-efficiency dissociation and classification recovery of components of waste lithium-ion batteries, can solve the problems of low recovery efficiency and complicated sorting process, and achieve high-efficiency recovery, simple operation, and high efficiency effect of dissociation

Inactive Publication Date: 2017-10-24
深圳市恒创睿能环保科技有限公司
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Problems solved by technology

[0004] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a method for efficient dissociation and classification recovery of components of waste lithium-ion batteries, which can realize high-efficiency pyrolysis and dissoci

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  • Efficient dissociation and sorted collection method for each component of waste lithium ion batteries

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Embodiment Construction

[0019] Please refer to figure 1 As shown, it shows a preferred embodiment of the present invention, a method for efficient dissociation and classification recovery of various components of a waste lithium ion battery, including the following steps:

[0020] (1) Discharging treatment of waste and old lithium batteries: discharge the waste and old lithium ion batteries to obtain uncharged waste lithium batteries, laying the foundation for the subsequent treatment process; in this embodiment, put the waste and old lithium ion batteries into a certain Discharge treatment is carried out in the discharge battery of the ion concentration solution.

[0021] (2) Pyrolysis treatment of the whole lithium battery: thermally decompose the discharged waste lithium battery as a whole to realize the decomposition and removal of the electrolyte, diaphragm and binder, and then realize the full dissociation of the electrode material and the electrode sheet, and The recovery of the organic pyrol...

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Abstract

The invention discloses an efficient dissociation and sorted collection method for each component of waste lithium ion batteries. The efficient dissociation and sorted collection method comprises the following steps: (1) discharge treatment of the waste lithium batteries: discharging the waste lithium ion batteries to obtain uncharged waste lithium batteries, and laying a foundation for subsequent treatment process; (2) pyrolysis treatment of the whole pieces of the lithium batteries: carrying out pyrolysis treatment on the discharged waste lithium batteries, realizing decomposition removal of an electrolyte, a diaphragm and a binder, then realizing sufficient dissociation of an electrolyte material and electrode slices, and further realizing recycling of an organic pyrolysis liquid through a condensation method; (3) crushing dissociation: putting the lithium batteries after pyrolysis into a crushing machine for crushing to realize shredding of battery shells, crushing of the electrode slices and falling of the electrode material; and (4) sieving treatment: obtaining a fine-sized electrode material, medium-sized electrode slices and large-sized shells through a sieving method according to the difference of each component in the lithium batteries in particle size.

Description

technical field [0001] The invention relates to the technology in the field of waste battery recycling, in particular to a method for efficient dissociation and classification recovery of components of waste lithium ion batteries. Background technique [0002] In recent years, with the replacement of electronic products such as mobile phones, laptops, and cameras, a large number of waste lithium batteries have also appeared in people's daily life. The efficient recycling of waste lithium batteries can not only obtain high-value cobalt, lithium, etc. Metals can also solve a series of environmental problems caused by waste lithium batteries. [0003] In the recycling process of waste lithium-ion batteries, the efficient dissociation and sorting and recycling of various components are the key technical links. In the above, simple mechanical crushing cannot completely remove the electrode material, causing a large amount of electrode material to adhere to and remain on the elec...

Claims

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Application Information

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IPC IPC(8): H01M10/54B09B5/00B09B3/00
CPCH01M10/54B09B3/00B09B5/00B09B3/40Y02W30/84
Inventor 陈志鹏
Owner 深圳市恒创睿能环保科技有限公司
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