Liquid injection device

By designing positioning and adsorption components for the electrolyte injection device, the electrolyte injection is automated, solving the problems of increased costs and chemical reaction risks associated with manual injection, thus achieving cost reduction and yield improvement.

CN224204332UActive Publication Date: 2026-05-05CHONGQING TALENT NEW ENERGY CO LTD
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Patent Information

Application Number
CN202520920065.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2026-05-05
Estimated Expiration
2035-05-08

AI Technical Summary

Technical Problem

In the lithium battery manufacturing process, manual electrolyte injection increases labor costs, and too many personnel can affect the electrolyte injection environment and pose a risk of electrolyte chemical reactions.

Method used

Design a liquid injection device, including a working frame, a positioning component, an adsorption component, and a liquid injection tank. The positioning component supports the battery cell, the adsorption component opens the liquid injection port, and the liquid injection tank injects electrolyte, reducing the number of manual operators and improving the degree of automation.

Benefits of technology

It reduces the processing cost of battery cells and lithium batteries, reduces the impact of environmental moisture on electrolytes, improves battery cell yield, and reduces the risk of chemical reactions.

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Abstract

The utility model relates to a liquid injection device which comprises an operation frame, a positioning assembly, an adsorption assembly and a liquid injection tank. The positioning assembly is installed on a side frame of the operation frame, the positioning assembly can make contact with a battery cell in the first direction and support the battery cell, the adsorption assembly is installed on the operation frame, the adsorption assembly can adsorb and pull open a liquid injection opening of the battery cell in the first direction, and the first direction is perpendicular to the height direction of the operation frame. The liquid injection tank is installed on the top frame of the operation frame, and a liquid outlet of the liquid injection tank can be in butt joint with the liquid injection opening so as to inject electrolyte into the battery cell. Compared with manual electrolyte injection, the electrolyte injection device has the advantages that the number of people needed in the battery cell electrolyte injection process is reduced, the electrolyte injection cost of the battery cell is reduced, namely, the processing cost of the battery cell and the lithium battery is reduced, meanwhile, the influence of too many people on the electrolyte injection environment is reduced, namely, the risk of chemical reaction of the electrolyte caused by high moisture in the electrolyte injection environment is reduced, and the service life of the electrolyte is prolonged. And the yield of the battery cell is improved.
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