Pouch cell is one of the most common lithium ion battery cell types. Compared with lead-acid battery, it has many advantages, such as small volume, light weight, high specific energy, high safety, flexible design and so on.

In the making process of pouch cell battery, the main body of pouch cell needs to be dried before injecting electrolyte. Due to the isolation film in the main body of pouch cell is not resistant to very high temperature, so its drying temperature should not be too high. As we all know, under normal pressure, the evaporation temperature of water is more than 100℃, while the isolation film in the main body of soft pack battery is easy to deteriorate at more than 90℃, the battery performance will decline and the capacity will become smaller, resulting in an increase in the defective rate and reduced economic benefits.

Therefore, in the existing technology, the pouch cell body is dried under vacuum conditions, which can reduce the drying temperature, avoid damage to the pouch cell body under high temperature conditions and reduce the defective rate. The injection of electrolyte into the dried pouch cell body is carried out in a positive pressure drying environment.Trace water in the environment will be injected into the cell with the electrolyte. The excess water will reduce the performance of the battery, increase the defective rate, increase the production cost and reduce the economic benefit.There is a need for improvement.

In order to overcome the above defects, ACEY NEW ENERGY TECHNOLOGY CO.,LTD provides the vacuum condition equipment- glove box for lithium battery cell making. It is applicable to the operation of liquid injection and sealing. Keep the cell in a glove box without water or oxygen. The sealing process is all operated in a controllable anhydrous and oxygen free environment to provide the most solid protection for the quality of the battery.