Electrolyte injection apparatus for battery

Abstract

The invention provides an electrolyte injection apparatus for a battery, belonging to the field of batteries. The objective of the invention is to provide the electrolyte injection apparatus capable of improving the electrolyte injection rate of the battery. The electrolyte injection apparatus comprises an electrolyte supplying mechanism, an electrolyte injection cup, an injected electrolyte sealing valve, a vacuum valve and positive valve, wherein the electrolyte supplying mechanism comprises an electrolyte storage box and a first electrolyte outlet; the first electrolyte outlet is communicated with the electrolyte storage box; the electrolyte injection cup comprises an electrolyte storage chamber, a first electrolyte inlet, a second electrolyte outlet, a vacuum opening and a positive voltage opening; the first electrolyte inlet, the second electrolyte outlet, the vacuum opening and the positive voltage opening are separately communicated with the electrolyte storage chamber; when an electrolyte is stored in the electrolyte storage chamber, the electrolyte can flow into the second electrolyte outlet and not into the vacuum opening; the first electrolyte outlet may be communicated with the first electrolyte inlet; the second electrolyte outlet is used for hermetic butt joint with an electrolyte inlet of the battery; the injected electrolyte sealing valve is matched with the first electrolyte inlet and can seal and open the first electrolyte inlet; the vacuum valve is communicated with the vacuum opening; and the positive valve is communicated with the positive voltage opening.

Description

technical field [0001] The present application relates to the field of batteries, in particular to a battery liquid injection device. Background technique [0002] In the battery production process, electrolyte filling is a very important link. Vacuum liquid injection is one of the commonly used liquid injection methods. Generally, the vacuum liquid injection method first injects the electrolyte into the cache cup, then vacuumizes the cache cup and the battery to a certain value, then opens the cache cup, and vacuums the electrolyte. fluid is sucked into the battery. However, according to the existing vacuum liquid injection method, the amount of electrolyte solution injected into the battery each time is small, so a large number of repeated operations are required to complete the sufficient liquid injection of the battery, resulting in low efficiency of battery liquid injection. Contents of the invention [0003] The problem to be solved in this application is to provid...

AI Technical Summary

Problems solved by technology

However, according to the existing vacuum liquid injection method, the amount of electrolyte solution injected into the battery each time is small, so a large number of repeated operations are required to complete the sufficient liquid injection of the battery, resulting in low efficiency of battery liquid injection

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