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Method for improving electrolyte injecting efficiency of lithium ion battery

A lithium-ion battery and electrolyte technology, which is used in battery pack parts, non-aqueous electrolyte batteries, and electrolyte battery manufacturing, etc., can solve the problems of bad ratio, difficulty in filling liquid, and low efficiency of electrolysis, so as to improve production capacity and improve Production process, the effect of improving the production qualification rate

Inactive Publication Date: 2018-04-13
惠州市华维机电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above disadvantages and provide a method for improving the efficiency of lithium-ion battery electrolyte injection, which firstly solves the bottleneck problems of the existing lithium-ion battery, such as low injection efficiency, difficult liquid injection, and poor ratio.

Method used

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  • Method for improving electrolyte injecting efficiency of lithium ion battery
  • Method for improving electrolyte injecting efficiency of lithium ion battery
  • Method for improving electrolyte injecting efficiency of lithium ion battery

Examples

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Embodiment 1

[0026] Such as Figure 2-4 As shown, the present invention provides a method for improving the electrolyte injection efficiency of a lithium-ion battery. The method is to apply a pressure F to the outside of the lithium-ion battery winding core 5 by using a pressure device, and use the method of forming a relative vacuum inside the battery winding core 5 Filling the electrolyte; specifically includes: before injecting the liquid, apply a certain pressure F to the battery core 5 with a pressure device to clamp the battery core 5, so that the air 6 inside the battery core is discharged; and then in the battery air bag 1 Inject the electrolyte 2; after the injection of the electrolyte 2 is completed, the pressure of the battery core 5 is released, and the battery core 5 expands outward according to its own elasticity, releasing a certain space, and a relative vacuum is formed inside the battery core 5; in a relative vacuum Under the action of the suction force, the electrolyte so...

Embodiment 2

[0028] Such as Figure 5 As shown, a pressure device used in a method for improving the electrolyte injection efficiency of lithium-ion batteries of the present invention includes a base 12, a fixed plate 11 and a thrust device, and the thrust device includes a compression cylinder 10 and The thrust plate 8 connected to the compression cylinder 10; the fixed plate 11 is vertically and longitudinally arranged on one side of the base 12; the fixed plate 11 and the thrust plate 8 are arranged opposite; the fixed plate 11 is provided with a battery toward the inside of the thrust plate 8 Shelf 9; the battery shelf 9 is fixed on the fixed plate 11 with bolts, which is convenient for adjustment according to the type of the battery.

[0029] When the electrolyte is injected, the battery is first placed between the fixed plate 11 of the pressure device and the thrust device, placed on the battery shelf 9, and adjusted so that the battery winding core 5 is in a suitable position, so th...

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Abstract

The invention provides a method for improving electrolyte injecting efficiency of a lithium ion battery. According to the method, pressure is applied to the exterior of a lithium ion battery roll core, and a relative vacuum state is formed in the battery roll core to realize electrolyte injection. According to the method for improving electrolyte injecting efficiency of the lithium ion battery adopted in the invention, pressure is applied to the exterior of the lithium ion battery roll core, and a relative vacuum state is formed in the battery roll core to realize electrolyte injection, so that electrolyte injecting efficiency is improved, battery contamination is eliminated, battery corrosion is lowered, and production percent of pass of the product is further improved; and therefore, themethod has high social and economic benefits.

Description

technical field [0001] The invention relates to a method for filling electrolyte in a battery, in particular to a method for improving the electrolyte injection efficiency of a lithium-ion battery. Background technique [0002] At present, the electrolyte injection process in the lithium-ion battery industry generally has the problem of low electrolyte injection efficiency, especially for large-capacity, high-rate batteries, the amount of injected electrolyte is large, making it difficult for the electrolyte to penetrate into the battery core. , because the electrolyte cannot go down, the industry has deliberately added a vacuuming process after the electrolyte injection process to promote the electrolysis to quickly immerse into the inside of the battery core. For large-capacity, high-rate batteries, multiple vacuuming and multiple The production by injecting the electrolyte once seriously affects the production efficiency and the promotion of automation, and because the el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/36H01M10/058H01M50/60
CPCH01M10/058H01M50/60Y02E60/10Y02P70/50
Inventor 王勇军李保福
Owner 惠州市华维机电设备有限公司
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