Automatic Delivery Lithium Battery Electrolyte Injection System


When the lithium ion battery is in normal operation, the negative electrode terminal drawn from the negative electrode current collector and the positive electrode terminal drawn from the positive electrode current collector form an electronic path with the external circuit, and the lithium ions in the electrolyte and the positive and negative electrode active materials form an ion path, an electronic path and an ion path Together form a loop to achieve the purpose of normal work. As the demand for lithium-ion batteries gradually increases, people's performance requirements in all aspects are getting higher and higher, especially for the cycling performance of the battery, and the battery's liquid injection volume is an important parameter to ensure the battery cycle. Too little liquid injection will cause the cycle to decay too fast, causing the battery's service life to decay too quickly. However, too much liquid injection will cause the battery to swell and destroy the overall structure of the battery.
In the traditional lithium battery injection production, the manual injection method is generally used to perform one-to-one injection processing. The injection accuracy is low, the production efficiency is low, and the safety is poor.

Although there are also two types of automatic electrolyte injection machines in the prior art, the positive injection type and the vacuum reverse suction type, the vacuum reverse suction type injection method requires high sealing performance and sealing conditions for the equipment pipeline. Harsh; and the positive liquid injection method also has the technical problem of difficult control of liquid injection precision. Moreover, the existing liquid injection machine still needs manual loading and unloading, and the production efficiency still needs to be improved.
In view of this, an automated lithium battery production line is provided to solve the technical problems of low electrolyte injection efficiency and poor injection precision of existing lithium batteries. Both feeding and discharging are automatically completed, the feeding and discharging speed is fast, and the production efficiency is high.

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