When a lithium ion battery is in normal operation, the negative terminal drawn from the negative current collector and the positive terminal drawn from the positive current collector form an electronic path with the external circuit. The lithium ions in the electrolyte and the positive and negative active materials form an ion path, an electronic path and an ion path Together to form a loop to achieve the purpose of normal work. As the demand for lithium-ion batteries gradually increases, people have higher and higher requirements for their performance in all aspects, especially for the cycle performance of the battery, and the amount of liquid injection of the battery is an important parameter to ensure the battery cycle. Too little liquid injection will cause the cycle to decay too fast, causing the battery life to decay too fast. However, too much liquid injection will cause the battery to swell and damage the overall structure of the battery.
In the traditional lithium battery injection production, the injection accuracy is low, the production efficiency is low, the safety is poor, and the sealing conditions are harsh. Moreover, the existing liquid injection machine does not have a sealing function, and the lithium battery after liquid injection needs a special sealing machine for sealing, and the production efficiency is low.
Provide a lithium battery production line. The lithium battery automatic production line can realize automatic scanning-injection-weighing-replenishment-sealing operations in the super clean glove box, realizing efficient and completely unmanned automatic production, greatly saving labor costs, and greatly improving Production capacity, product quality and yield, maximize the benefits for customers. It solves the problems of low electrolyte injection efficiency of the existing lithium battery, poor injection accuracy, and inability to seal the battery after injection. The automatic sealing lithium battery production line has automatic feeding and discharging. The feeding and discharging conveying speed is fast and the production efficiency is high.
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