During normal operation of a lithium ion battery, the negative electrode terminal from the negative electrode current collector and the positive electrode terminal from the positive electrode current collector form an electronic path with an external circuit. The lithium ion 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 cycle performance of the battery, and the amount of battery injection is an important parameter to ensure the cycle of the battery. Too little injection volume will cause the cycle to decay too quickly, causing the battery life to decay too quickly. 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. The lithium battery after the liquid injection needs a special sealing machine for sealing, and the production efficiency is low.

Provide a lithium battery production line. The lithium battery automated production line can realize fully automatic code scanning-injection-weighing-rehydration-sealing operation in the super purification glove box, realizing efficient and completely unmanned automated production, greatly saving labor costs and greatly improving Capacity and product quality and yield to maximize customer benefits. It solves the problems that the existing lithium battery electrolyte has low liquid injection efficiency, poor liquid injection accuracy, and cannot seal the battery after liquid injection. Automatically sealed lithium battery production line, its feeding and discharging are completed automatically, the feeding and discharging speed is fast, and the production efficiency is high.