Production method and production equipment of organic electrolyte of lithium ion battery

An organic electrolyte and lithium-ion battery technology, applied in the field of chemical production, can solve the problems of high cost and inefficient production methods, achieve the effects of reducing production equipment costs, improving production efficiency, and preventing lithium salt from being added too quickly

Active Publication Date: 2018-05-18
南宁翌思达新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the inefficiency and high cost defects of the existing electrolyte production methods, it is necessary to provide a production method and production equipment for lithium-ion organic electrolytes, which can achieve efficient production of electrolytes and greatly reduce the production of electrolytes. cost, with significant industrial value

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  • Production method and production equipment of organic electrolyte of lithium ion battery
  • Production method and production equipment of organic electrolyte of lithium ion battery
  • Production method and production equipment of organic electrolyte of lithium ion battery

Examples

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example 1

[0054] Such as figure 1 As shown, the production equipment of a lithium-ion battery organic electrolyte provided in the first embodiment includes a solvent mixing tank 1 , a pump 2 , a pipelined dissolution system, a cooling system and a finished product tank 7 . Wherein, the piped dissolving system is composed of pipes 4 , and the cooling system includes a cooling device 5 and a cooling liquid tank 6 .

[0055] The solvent mixing tank 1 communicates with the front end of the pipeline 4 through the pump 2 , and the end of the pipeline 4 communicates with the finished product tank 7 . The freezing liquid tank 6 is filled with freezing liquid, the pipeline 4 is completely submerged in the freezing liquid in the cooling liquid tank 6 , and the cooling device 5 is used to cool down the cooling liquid in the cooling tank. In this embodiment, ethylene glycol is selected as the cooling liquid, the material of the pipeline 4 is selected to be stainless steel passivated by pickling an...

example 2

[0067] Such as figure 2 As shown, the second embodiment provides an organic electrolyte production equipment for lithium-ion batteries, including a solvent mixing tank 1 , a pump 2 , a pipelined dissolution system, a cooling system, a buffer tank 8 and a finished product tank 7 . Wherein, the piped dissolving system is composed of pipes 4 , and the cooling system includes a cooling device 5 and a cooling liquid tank 6 .

[0068] The solvent mixing tank 1 communicates with the front end of the pipeline 4 through the pump 2 , and the end of the pipeline 4 communicates with the finished product tank 7 . One end of the buffer tank 8 communicates with the end of the pipeline 4, and the other end of the buffer tank 8 communicates with the front end of the pipeline 4 through the pump 2. The buffer tank 8, the pump 2 and the pipeline 4 form a closed loop. The freezing liquid tank is loaded with freezing liquid, the pipeline 4 is completely submerged in the freezing liquid in the fre...

example 3

[0082] Such as image 3 As shown, the production equipment of organic electrolyte for lithium-ion batteries provided by the third embodiment includes a solvent mixing tank 1 , a pump 2 , a pipelined dissolution system, a cooling system, a buffer tank 8 and a finished product tank 7 . Wherein, the pipelined dissolution system is composed of pipelines 4 , and the cooling system includes a cooling device 5 , a cooling liquid tank 6 and a cryojacket 9 .

[0083] The solvent mixing tank 1 communicates with the front end of the pipeline 4 through the pump 2 , and the end of the pipeline 4 communicates with the finished product tank 7 . One end of the buffer tank 8 communicates with the end of the pipeline 4, and the other end of the buffer tank 8 communicates with the front end of the pipeline 4 through the pump 2. The buffer tank 8, the pump 2 and the pipeline 4 form a closed loop. Freezing liquid is loaded in the freezing liquid tank 6 and the freezing sleeve 9, and the freezing ...

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Abstract

The invention discloses a production method and production equipment of an organic electrolyte of a lithium ion battery. The production method comprises the steps of 1, preparing an electrolyte organic solvent in a solvent mixing tank; 2, conveying the electrolyte organic solvent in the solvent mixing tank to a pipeline according to a set flowing speed and enabling the pipeline to be immersed intoa freezing medium of a cooling system, wherein the pipeline is at least provided with a curve, and lithium salt adding openings are formed in the pipeline; and 3, when it is detected that the temperature of the electrolyte organic solvent is lowered to be minus 5 to 0 DEG C, adding lithium salt through the lithium salt adding openings, and after the lithium salt is dissolved, obtaining the organic electrolyte of the lithium ion battery. By virtue of the production method, the dissolving speed of the lithium salt is greatly improved, production efficiency is improved, agglomeration and deposition of the lithium salt also can be prevented, adaptivity on the lithium salt in the production process is improved, production cost is lowered and the cooling effect is improved.

Description

technical field [0001] The invention designs a chemical production method, and in particular relates to a production method and production equipment of an organic electrolyte for a lithium ion battery. Background technique [0002] Electrolyte is one of the four key materials of lithium-ion batteries (positive electrode, negative electrode, diaphragm, and electrolyte). It is known as the "blood" of lithium-ion batteries and plays the role of conducting electrons between the positive and negative electrodes in the battery. Guarantee of high voltage, high specific energy and other advantages. The electrolyte is generally made of high-purity organic solvent, electrolyte lithium salt (LiPF 6 etc.), necessary additives and other raw materials are formulated in a certain proportion under certain conditions. [0003] When the lithium salt is dissolved in an organic solvent, a large amount of heat will be generated, which will increase the temperature of the electrolyte. Due to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0566H01M10/058
CPCH01M10/0566H01M10/058Y02E60/10Y02P70/50
Inventor 赖延清洪波范海林
Owner 南宁翌思达新能源科技有限公司
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