characteristic; Vacuum oven, also known as vacuum oven, vacuum drying oven, vacuum baking oven, is widely used in industries such as chemical, electronics, food, light industry, medicine, etc. It can dry materials in a vacuum state. It has the advantages of fast drying speed, low pollution, and no damage to the internal quality of the dried goods.

The battery specific vacuum oven is a vacuum oven designed specifically for the baking process of lithium-ion batteries. Due to the special nature of the oven materials, the lithium battery specific oven needs to have characteristics such as strong acid and alkali corrosion resistance, precise temperature control, efficient program control, stability and safety

Purpose; Due to the strict control of moisture content inside lithium batteries, moisture has a significant impact on the performance of lithium batteries, including indicators such as voltage, internal resistance, and self discharge. Excessive moisture content can lead to product scrap, decreased quality, and even product explosion. Therefore, in multiple production processes of lithium batteries, multiple vacuum baking is required for the positive and negative electrode plates, battery cells, and batteries to remove as much moisture as possible.

After heating under normal pressure for a period of time in a lithium battery specific vacuum oven, the moisture in the battery or electrode piece is converted into water vapor; After the evaporation of water, vacuuming can extract the water vapor; Fill nitrogen to break the vacuum and maintain a dry environment. In the actual baking process, the order of the above three steps varies according to different processes, and generally requires multiple cycles.