The lithium-ion battery manufacturing process is injected into the electrolyte link, which has a significant impact on the performance and quality of the lithium-ion battery. The amount of electrolyte has a significant impact on the cycle performance and overcharge resistance of the battery. When the amount of electrolyte is too much or too little, the cycle performance and safety performance Both are poor. Secondly, once the electrolyte absorbs moisture, when the lithium-ion battery is working, the electrochemical effect will produce a series of reactions that damage the performance of the lithium-ion battery, such as hydrofluoric acid, in order to prevent the lithium-ion battery from absorbing moisture during the injection process. Therefore, it is necessary to improve the quality of lithium-ion battery products and improve the existing electrolyte injection technology. Secondly, the existing lithium-ion battery manufacturing process needs to be stored for a period of time after the electrolyte is injected. The purpose of the storage is to distribute the electrolyte evenly on all parts of the battery cell. It requires high temperature storage, vacuum storage, or more. The measures make the electrolyte evenly distributed in all parts of the battery. Practice has proved that this static shelving method is difficult to achieve a very uniform distribution of the electrolyte in various parts of the cell in a short time. Therefore, under the existing liquid injection process, there are often undesirable consequences such as partial lithium deposition inside the battery, swelling of the battery cell, and low yield.
In order to overcome the shortcomings of the existing lithium-ion battery liquid injection system, a lithium battery automatic production line is provided. This production line can realize fully automatic code scanning-injection-weighing-replenishment-sealing operations in the super clean glove box to achieve high efficiency and completeness Unmanned automated production greatly saves labor costs, greatly improves production capacity, product quality and yield, and maximizes customer benefits. This production line is a revolution in the production of lithium batteries/super capacitors.
Function description
1. The battery raw material package enters the glove box from the input bin;
2. The battery raw material package is automatically scanned and weighed, and the weighed battery raw material package is automatically placed in the material conveying device;
3. The conveying device automatically enters the liquid injection cylinder for liquid injection;
4. The batteries after liquid injection enter the stationary cylinders 1, 2, and 3 respectively for standing;
5. The battery after standing still enters the sealing cylinder for vacuuming and sealing;
6. The sealed battery will be automatically weighed a second time, and unqualified products will enter the recovery transition bin on the left for processing;
7. Qualified batteries will be automatically sent to the delivery warehouse
