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A large-scale low-temperature storage and production liquid supply system and method for lithium battery electrolyte

A low-temperature storage and electrolyte technology, which is applied in the field of electrolyte, can solve problems such as impurity cannot be effectively removed, damage to electrolyte components, and container wall crystallization and scaling, so as to avoid the risk of leakage and metal pollution, ensure environmental protection and personnel health, The effect of preventing product quality problems

Active Publication Date: 2019-12-24
唐山金坤化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] These two methods of storage and liquid supply have the following disadvantages: 1. The storage volume is small, which is not suitable for large-scale production lines; 2. For the special electrolyte that requires low temperature storage, it cannot be stored for a long time; 3. It is impossible to avoid the entry of moisture in the air , destroying the composition of the electrolyte; 4. Bubbles are likely to be generated when the electrolyte is fed through nitrogen pressure, which affects production; 5. Crystal scaling occurs on the container wall after the electrolyte is stored; 6. Volatile organic gas pollutants during the storage of the electrolyte cause Pollution; 7. Low degree of automation, not suitable for large-scale continuous production; 8. Impurities generated during electrolyte manufacturing, transportation, and storage and transportation cannot be effectively removed

Method used

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  • A large-scale low-temperature storage and production liquid supply system and method for lithium battery electrolyte
  • A large-scale low-temperature storage and production liquid supply system and method for lithium battery electrolyte
  • A large-scale low-temperature storage and production liquid supply system and method for lithium battery electrolyte

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Experimental program
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Effect test

Embodiment 1

[0054] In this embodiment, 5 tons of the same electrolyte is required for production, and the storage temperature of the electrolyte is 5-10 degrees Celsius. See figure 2 ,Proceed as follows:

[0055] 1. The electrolyte is transported to the factory area by a tank truck, connected with the feed connection port of the tank area with a hose, and the electrolyte in the tank truck is pumped to the upper liquid inlet port of the constant temperature electrolyte storage tank through the unloading pump for the constant temperature electrolyte storage tank. The tank is filled with liquid, and the hose of the tank car is separated from the connection port after the unloading is completed.

[0056] 2. The constant temperature electrolyte storage tank is a 30 cubic horizontal constant temperature electrolyte storage tank. It is drawn out, and then sent back to the constant temperature electrolyte storage tank from the other side to form an external circulation.

[0057] 3. The top of...

Embodiment 2

[0063] In this embodiment, two kinds of electrolytes are required for production. The first electrolyte is 5 tons per day, and the storage temperature of the electrolyte is 10-20 degrees Celsius; the second electrolyte is 1 ton per day, and the storage temperature is -10-0 degrees Celsius. Such as figure 1 ,Proceed as follows:

[0064] 1. The two groups of electrolytes are transported to the factory area by tank trucks, and are respectively connected to the feed port of the tank area with independent hoses, and the electrolytes in the tank trucks are respectively pumped to two groups of constant temperature electrolytes by two sets of unloading pumps. The liquid inlet on the upper part of the storage tank fills the constant temperature electrolyte storage tank, and the hose of the tank car is separated from the connection port after unloading.

[0065] 2. The constant temperature electrolyte storage tanks are all horizontal constant temperature electrolyte storage tanks of 50...

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Abstract

The invention discloses a lithium battery electrolyte large-scale low-temperature storage and production liquid supply system and method. The lithium battery electrolyte large-scale low-temperature storage and production liquid supply system comprises constant-temperature electrolyte storage tanks, each constant-temperature electrolyte storage tank inlet is provided with a magnetic unloading pump,and each constant-temperature electrolyte storage tank outlet communicates with a casing pipe type constant-temperature conveying pipeline through a pipeline provided with a magnetic circulation conveying pump. Each casing pipe type constant-temperature conveying pipeline is provided with a micropore filter. One side of each casing pipe type constant-temperature conveying pipeline communicates with a constant-temperature workshop temporary storage tank. One side of each constant-temperature workshop temporary storage tank communicates with a tail gas washing tower through a pipeline. A pipeline, provided with an alkali liquor circulation pump, on one side of the tail gas washing tower extends to the top of the tail gas washing tower. The top of the tail gas washing tower communicates witha tail gas adsorption bed through a pipeline. The top of each constant-temperature electrolyte storage tank is provided with a cleaning solvent inlet pipe, wherein the cleaning solvent inlet pipe communicates with a cleaning sprayer arranged in the constant-temperature electrolyte storage tank. The electrolyte storage amount is large, the automation degree is high, and the lithium battery electrolyte large-scale low-temperature storage and production liquid supply system and method are suitable for large-scale continuous production.

Description

technical field [0001] The invention belongs to the technical field of electrolytes, and in particular relates to a large-scale low-temperature storage and production liquid supply system for lithium battery electrolytes, and at the same time, the invention also relates to a large-scale low-temperature storage and production supply method for lithium battery electrolytes. Background technique [0002] Electric vehicles and other industries that require lithium batteries have undergone rapid development, and the production scale has gradually expanded. In recent years, large-scale lithium battery production lines are becoming mainstream. In large-scale production, the electrolyte needs to be stored for a long time by manufacturer, grade, and type, and it is necessary to automatically, continuously and stably supply the electrolyte to the production line. In the whole process, higher requirements are put forward for safety, environmental protection, automation, and electrolyt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D1/14F17D3/16B08B9/093B01D53/02B01D53/14
CPCB01D53/02B01D53/1456B01D2252/10B08B9/0813F17D1/14F17D3/16
Inventor 潘锦陈卓周田田
Owner 唐山金坤化工有限公司