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A kind of cleaning method of electrolyte packaging barrel for lithium ion battery

A technology of lithium-ion batteries and packaging barrels, applied in cleaning methods and appliances, chemical instruments and methods, cleaning hollow objects, etc., to achieve the effects of energy saving, simple equipment, and convenient operation

Inactive Publication Date: 2011-12-14
TIANJIN JINNIU POWER SOURCES MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And in order to make the packaging barrel reach the purpose of recycling, its cleaning technology has not been reported yet.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Put 10 packaging barrels upside down on the rotary cleaning nozzle, start the spray booster water pump, spray with tap water for 10 minutes, and distilled water for 1 minute. Tighten the screws, and then use nitrogen with a dew point of -30°C, a purity of 99.5%, and a temperature of 10°C to enter through the inlet of the packaging barrel, and to exit the outlet. After blowing for 20 hours, turn off the gas source to complete the operation. Use a dew point meter to detect the dew point in the packaging barrel as -29.7°C.

Embodiment 2

[0026] Put 10 packaging barrels upside down on the rotary cleaning nozzle, start the spray booster water pump, spray with tap water for 20 minutes, spray with distilled water for 2 minutes, and control the water for 2 hours. Tighten the screws, and then use nitrogen gas with a dew point of -40°C, a purity of 99.9%, and a temperature of 20°C to enter through the inlet of the packaging barrel, and to exit the outlet. After blowing for 12 hours, turn off the gas source to complete the operation. Use a dew point meter to detect the dew point in the packaging barrel as -35.2°C.

Embodiment 3

[0028] Put 10 packaging barrels upside down on the rotary cleaning nozzle, start the spray booster water pump, spray with tap water for 30 minutes, spray with distilled water for 5 minutes, and control the water for 3 hours. Tighten the screws, and then use nitrogen with a dew point of -50°C, a purity of 99.9%, and a temperature of 30°C to enter through the inlet of the packaging barrel, and to exit the outlet. After blowing for 6 hours, turn off the gas source to complete the operation. The dew point in the packaging barrel was detected as -39.4°C with a dew point meter.

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Abstract

The invention relates to a cleaning method for electrolyte packaging drums for lithium-ion batteries, which is characterized in that it comprises the following steps: 1) Residual liquid collection: add pressure to the packaging drum, use a special catheter quick 4P connector to clean the residual liquid in the packaging drum liquid collection; 2) Opening the cover: release the pressure inside the barrel through the quick 2P joint of the packing barrel, and open the top sealing flange; 3) Cleaning: put the packing barrel upside down on each rotary nozzle, open the valve of the nozzle, start the water pump, and use Spray washing with tap water and distilled water; 4) Water control: After cleaning, keep the water upside down for 1 to 3 hours; 5) Tightly cover; 6) Drying: Use a dew point of -30°C to 50°C and a purity of 99.5% to 99.99%, nitrogen at a temperature of 5°C to 50°C passes through the quick connector of the packaging barrel, and the gas source is turned off after blowing for 6 to 20 hours, and the pressure can be kept for use after passing the test.

Description

technical field [0001] The invention relates to equipment cleaning technology, and is a method for cleaning a packaging barrel of liquid organic chemical raw materials, in particular to a method for cleaning an electrolyte packaging barrel for lithium ion batteries. Background technique [0002] Due to the advantages of high working voltage, high energy density (light weight), low self-discharge rate, no memory effect, and long cycle life, lithium-ion batteries have developed rapidly since they were put on the market, and have gradually replaced nickel-metal hydride batteries. The field of mobile electronic terminal equipment such as mobile phones and camcorders occupies a dominant position. In recent years, relying on its own comprehensive advantages, it is entering a larger industrial group - the field of power batteries. [0003] The rapid development of lithium-ion batteries has driven the development of related battery materials. Electrolyte is one of the four key mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/28
Inventor 桑俊利赵庆云郭西凤王巧娟王卫华
Owner TIANJIN JINNIU POWER SOURCES MATERIAL
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