Method and device for recovering waste battery electrolyte organic solvent

An organic solvent and waste battery technology, which is applied in the field of waste battery recycling and can solve problems such as secondary pollution, organic solvent leakage, and unfriendly environment.

Inactive Publication Date: 2016-05-04
周虎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tail gas from incineration often causes secondary pollution and is not environmentally friendly
Wet treatment uses a lot of chemicals, and organic solvents are prone to leakage during the treatment process, polluting the production environment

Method used

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  • Method and device for recovering waste battery electrolyte organic solvent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] The cylindrical lithium-ion single battery passes through the drilling machine. The drill bit of the drilling machine drills a hole in the bottom wall of the cylindrical battery. Chamber exhaust valve, open the vacuum pump, open the cooling device of the liquefaction chamber. The organic solvent inside the battery is quickly vaporized under the condition of reduced pressure and heating, and the vaporized organic solvent escapes to the vaporization chamber through the drilling holes on the outer wall of the battery. , the high-temperature and high-pressure solvent gas is liquefied after being cooled by the cooling device in the liquefaction chamber.

Embodiment 2

[0009] The soft-packed lithium-ion single battery passes through the puncture machine, and the knife head of the puncture machine punctures a hole on the outer wall of the soft-packed battery. The battery after the puncture hole is put into the vaporization chamber, the vaporization chamber is closed, the vaporization chamber heating device is turned on, and the vaporization chamber exhaust valve is opened. , turn on the vacuum pump, and turn on the cooling device of the liquefaction chamber. The organic solvent inside the battery is quickly vaporized under the condition of reduced pressure and heating, and the vaporized organic solvent escapes to the vaporization chamber through the drilling holes on the outer wall of the battery. , the high-temperature and high-pressure solvent gas is liquefied after being cooled by the cooling device in the liquefaction chamber.

Embodiment 3

[0011] The square lithium-ion single battery passes through the drilling machine, and the drill bit of the drilling machine drills a hole on the outer wall of the square battery. The drilled battery is placed in the vaporization chamber, the vaporization chamber is closed, the vaporization chamber heating device is turned on, and the vaporization chamber is opened to pump air. valve, turn on the vacuum pump, and turn on the cooling device of the liquefaction chamber. The organic solvent inside the battery is rapidly vaporized under the condition of reduced pressure and heating, and the vaporized organic solvent escapes to the vaporization chamber through the drilling holes on the outer wall of the battery. , the high-temperature and high-pressure solvent gas is liquefied after being cooled by the cooling device in the liquefaction chamber.

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PUM

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Abstract

The invention relates to a method and a device for recovering waste battery electrolyte organic solvent. The recovery of the waste battery electrolyte organic solvent comprises three steps such as 1, opening the case of a single battery, wherein the single battery is of sealed structure, and the internal of the single battery can communicate with the external due to the opening in the battery case of the single battery; 2, decompressing and vaporizing, specifically including exhausting air in the single battery with an opened case in a sealed vaporizing chamber for decompressing, thus allowing the organic solvent of the battery electrolyte to vaporize; and 3, pressurizing and liquefying, specifically including inputting the vaporized organic solvent into a liquefying chamber via a vacuum air pump, and condensing and recovering in the liquefying chamber.

Description

technical field [0001] The invention relates to the recovery and utilization of waste batteries, in particular to the recovery and utilization of organic solvents in electrolyte solutions of waste batteries. Background technique [0002] The rapid development of new energy vehicles has led to more and more waste power batteries that need to be disposed of. At present, there are two main methods of recycling waste power batteries, one is incineration, which mainly recovers the metal element materials of the battery; the other is wet treatment, which can recover various battery materials. The tail gas from incineration often causes secondary pollution and is not friendly to the environment. Wet treatment uses a lot of chemicals, and organic solvents are prone to leakage during the treatment process, polluting the production environment. Regardless of incineration or wet treatment, the volatile organic solvents in the electrolyte of waste batteries are an important cause of s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54B01D53/00
CPCY02W30/84H01M10/54B01D53/002
Inventor 周虎
Owner 周虎
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