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Electrolyte filling system and electrolyte filling method

An electrolyte and electrolyte injection technology, which is applied in the field of liquid injection system, can solve the problems of no involvement and reduce air bubbles, and achieve the effect of preventing air bubbles from mixing into the electrolyte

Active Publication Date: 2014-01-29
PANASONIC ENERGY WUXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] But above-mentioned patent document 1~3 all do not relate to how to reduce

Method used

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  • Electrolyte filling system and electrolyte filling method
  • Electrolyte filling system and electrolyte filling method
  • Electrolyte filling system and electrolyte filling method

Examples

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Embodiment Construction

[0034] Use the attached Figure 1~3 Specific embodiments of the present invention will be described.

[0035] figure 1 is a schematic diagram showing the electrolyte injection system of the present invention.

[0036] The electrolyte injection system includes: an electrolyte container 11 for storing electrolyte, a primary liquid storage tank 14 connected to the electrolyte container 11 through a pipeline S1, and a secondary liquid storage tank 16 connected to the primary liquid storage tank 14 through a pipeline S2 , the liquid injection nozzle 18 communicating with the secondary liquid storage tank 16 through the pipeline s3 , and the circulation pipe S4 communicating with the primary liquid storage tank 14 and the secondary liquid storage tank 16 .

[0037] Moreover, a pressurizing device 10 for pressurizing the electrolyte container 11 to output the electrolyte is also provided, and a flow meter 12 and a valve B1 for measuring the flow rate of the electrolyte are provided ...

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Abstract

The invention discloses an electrolyte filling system and an electrolyte filling method. The electrolyte filling system comprises an electrolyte container, a primary liquid storage tank, a secondary liquid storage tank, a filling nozzle, a circulating pump and a filling pump, wherein the electrolyte container is used for storing electrolyte and outputting the electrolyte through pressurization of a pressurizing unit; the primary liquid storage tank is connected with the electrolyte container by a pipeline, and stores the electrolyte supplied by the electrolyte container; the secondary liquid storage tank is connected with the primary liquid storage tank by the pipeline and stores the electrolyte supplied by the primary liquid storage tank; the filling nozzle is connected with the secondary liquid storage tank by the pipeline and used for filling the electrolyte in the secondary liquid storage tank into a battery enclosure; the circulating pump is arranged on the pipeline between the primary liquid storage tank and the secondary liquid storage tank, and used for supplying the electrolyte in the primary liquid storage tank to the secondary liquid storage tank; the filling pump is arranged on the pipeline between the secondary liquid storage tank and the filling nozzle and used for supplying the electrolyte in the second liquid storage tank to the filling nozzle; the electrolyte filling system further comprises a circulating tube for enabling gas and electrolyte escaped from the secondary liquid storage tank to flow to the primary liquid storage tank.

Description

technical field [0001] The invention relates to a liquid injection system and a liquid injection method for injecting electrolyte into batteries such as lithium batteries. Background technique [0002] Lithium batteries are widely used due to their small size and large capacity. A lithium battery is manufactured by housing an electrode plate group in a battery case, injecting an electrolytic solution, and sealing the opening of the battery case in an airtight state. [0003] As recorded in Patent Document 1, the existing electrolyte injection system such as the attached Figure 4 The sequence shown includes: an electrolyte container 1 filled with electrolyte, a flow meter 2, an air control valve 3, a liquid storage tank 4, a valve 5, a quantitative liquid injection pump 6, a liquid injection nozzle 7, and pipelines. Nitrogen gas is passed into the electrolyte container 1 to pressurize, the pneumatic valve is opened, and the electrolyte is pressed into the liquid storage tan...

Claims

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Application Information

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IPC IPC(8): H01M2/36H01M50/609H01M50/673
CPCH01M50/60Y02E60/10
Inventor 程剑锋
Owner PANASONIC ENERGY WUXI
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