Does the lithium battery production workshop need to use a dehumidifier?

Does the lithium battery production workshop need to use a dehumidifier?

Battery is a kind of daily necessities. Lithium battery is a reusable secondary battery. Because of its environmental protection, energy saving, strong applicability, good safety performance and long service life, it is widely used in electronics, automobiles, solar energy, Telecommunications, electric power, national defense, medical and other fields.

In the production process of lithium batteries, moisture will cause adverse effects on them. If too much water enters the lithium battery, it will seriously affect the performance of the lithium battery, and even cause an explosion; dust in the air can also cause a short circuit of the lithium battery. Therefore, effective control of the lithium battery production environment, especially temperature and humidity control, plays an important role in improving the safety and quality of lithium battery production.

If the air humidity in the lithium battery production workshop and storage environment is too high, the lithium battery will absorb moisture in the air, and its internal humidity will increase accordingly. After charging, the moisture will decompose and the internal pressure of the battery will be high. At the same time, during the electrolyte injection process, the electrolyte contains Lipf6, which will generate hydrogen fluoride (HF) when it meets with water to form a gas, which will cause a drum shell and affect the thickness and SEI film. Incomplete formation and so on. Therefore, the absolute dehumidification and purification of the lithium battery production workshop has become an indispensable key link for all lithium battery companies.

Generally, the higher the environmental humidity of a lithium battery workshop, the easier it is for battery materials to absorb moisture in the air. Conversely, the better the humidity control, the more limited the battery material's ability to absorb moisture in the air.

So how can we effectively control the environmental humidity in the lithium battery workshop?

A dehumidifier is a good way. The dehumidifier is a domestic dehumidifier brand with a good price/performance ratio. Its industrial dehumidifier is a product suitable for dehumidification in large areas such as production workshops and warehouses. It adopts the principle of freezing and dehumidification to carry out large-scale and strong dehumidification. It can create a suitable humidity environment for the lithium battery workshop.