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Device for electrified crushing and electrolyte recovery of waste power lithium battery

A technology for electrolyte recycling and lithium batteries, applied in battery recycling, waste collector recycling, secondary batteries, etc., can solve the problems of difficult recycling technology and high recycling costs, and achieve the effects of abundant reserves, improved efficiency, and stable properties

Inactive Publication Date: 2020-07-14
CINF ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that the recovery technology is difficult and the recovery cost is high. In view of the above situation, it is imminent to develop a simple, effective, low-cost and perfect process lithium-ion battery electrolyte recovery device.

Method used

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  • Device for electrified crushing and electrolyte recovery of waste power lithium battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] like figure 1 As shown, it is a preferred charging crushing and electrolyte recovery device for waste power lithium batteries of the present invention, including an air intake system, a fixed reaction kettle 2, a filter device, an electrolyte collection kettle 4 and a gas outlet system connected in sequence.

[0022] The intake system includes an inert gas source 11, an intake valve 12 and an intake machine 13. The inert gas provided by the inert gas source 11 enters the fixed reaction vessel through the intake valve 12 and the intake machine 13 for providing an inert atmosphere and adjusting The pressure inside the reactor was fixed.

[0023] The fixed reaction kettle 2 is a fully sealed device, and the inner wall is coated with fluorine-resistant materials to prevent electrolyte corrosion. The top of the fixed reaction kettle is provided with an inclined feeding hopper 62 with an inclination angle of 45°. A feed plate 61, when the waste power lithium battery 9 (as at...

example 1

[0031] combine figure 1 The device shown is used to carry out charged crushing of waste power lithium batteries and recovery of electrolyte. The specific process is as follows:

[0032] First, open the feed plate, and put the waste power LiCoO 2 The battery and dry ice are mixed into the feeding hopper at a mass ratio of 1:2. After the feeding is completed, the feeding plate is closed and the 1 # automatic shutter and 2 # Automatic baffle, open the outlet valve and air extractor, at this time, the fixed reaction kettle and the electrolyte collection kettle are fully sealed;

[0033]The inert gas source is argon, open the inlet valve and the inlet machine, and after a period of time, close the inlet machine, the air extractor, the inlet valve and the outlet valve and 1 # automatic shutter and 2 # Automatic baffle, at this time, the fixed reactor is filled with argon;

[0034] Turn on the roller shearing machine to start crushing. After crushing, adjust the temperature of t...

example 2

[0038] combine figure 1 The device shown is used to carry out charged crushing of waste power lithium batteries and recovery of electrolyte. The specific process is as follows:

[0039] First, open the feed plate, and put the waste power LiNi that has not undergone discharge pretreatment x co y mn z o 2 The battery and dry ice are mixed into the feed hopper at a mass ratio of 1:8. After the feeding is completed, the feed plate is closed and the 1 # automatic shutter and 2 # Automatic baffle, open the outlet valve and air extractor, at this time, the fixed reaction kettle and the electrolyte collection kettle are fully sealed;

[0040] The inert gas source is nitrogen, open the inlet valve and the inlet machine, and after a period of time, close the inlet machine, air extractor, inlet valve and outlet valve and 1 # automatic shutter and 2 # Automatic baffle, at this time, the fixed reactor is filled with nitrogen;

[0041] Turn on the roller shearing machine to start cr...

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Abstract

The invention discloses a device for electrified crushing and electrolyte recovery of a waste power lithium battery. The device comprises a gas inlet system, a fixed reaction kettle, a filtering device, an electrolyte collecting kettle and a gas outlet system which are connected in sequence; an outlet of the gas outlet system is connected to the fixed reaction kettle in a returning manner, a feeding device is arranged at the top in the fixed reaction kettle, a crushing device is connected below the feeding device, and opening and closing devices are arranged between the fixed reaction kettle and the filtering device and between the filtering device and the electrolyte collecting kettle. The device disclosed by the invention aims at recycling the electrolyte in the waste power lithium battery while breaking and disassembling the waste power lithium battery in an electrified manner; on the one hand, the waste power lithium battery does not need to be subjected to discharge pretreatment;on the other hand, the electrolyte is effectively recycled, the emission of toxic gas is reduced, the whole device and technological process are simple, large-scale production is easy, the recycled electrolyte can be reused, the electrolyte recycling efficiency is greatly improved, and resource and high-value utilization of waste is achieved.

Description

technical field [0001] The invention belongs to the technical field of resource recycling of waste power lithium batteries, in particular to a device for charged crushing of waste power lithium batteries and recovery of electrolyte. Background technique [0002] In recent years, with the increasing consumption of fossil fuels and the gradual enhancement of people's awareness of environmental protection, chemical power sources have been widely used as alternative energy sources, especially in the field of electric vehicles. With the gradual increase in the scale of the electric vehicle market, due to the service life of lithium-ion power batteries, lithium-ion power batteries have entered a stage of large-scale scrapping. It is predicted that the recycling value of waste lithium-ion power batteries will reach 13.6 billion yuan by 2020 and 31.1 billion yuan by 2023. If waste lithium-ion power batteries can be recycled reasonably, it will realize the sustainable development of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54H01M10/0525
CPCH01M10/0525H01M10/54Y02E60/10Y02W30/84
Inventor 戴学瑜周向阳陈欢欢杨娟甘红祥唐晶晶严浩王恒辉马亚赟刘晓剑
Owner CINF ENG CO LTD
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