Why do lithium battery ovens need to use vacuum baking

Let me give you an example of mobile phone lithium batteries. With the development of smartphones, mobile phone lithium batteries should be familiar to everyone. They are basically in contact every day, and during use, it is often found that lithium batteries heat up and become hot, but many times it does not attract everyone's attention. If there is a moisture factor inside the lithium battery, the prolonged heating of the phone will increase the heat of the battery itself, causing the internal moisture to evaporate and the air to expand violently, resulting in the battery protruding outward severely, and the battery will explode,Vacuum ovenIt is specially developed and manufactured for battery baking production technology, which can dry lithium batteries in a vacuum state with fast drying speed and low pollution. It is a very environmentally friendly testing equipment. Nowadays, the country advocates low-carbon living, so environmentally friendly production process equipment should be used. Due to the strict control of moisture content inside lithium batteries, and the significant impact of moisture on the performance of lithium batteries, including voltage, internal resistance, self discharge and other indicators, high moisture content can lead to product scrap, quality decline, and even explosion safety hazards. Therefore, in multiple production processes of lithium batteries, multiple vacuum baking should be carried out on positive and negative electrode cells and batteries to remove moisture as much as possible and minimize harm. With vacuum ovens, it is necessary to... It can effectively drain and prevent oxidation, Traditional ovens use oil type rotary vane pumps to solve vacuum applications, but there is a problem of oil pollution. Therefore, dry screw vacuum pumps should be selected. Lithium ion battery vacuum pumps can be customized non-standard. When producing lithium-ion batteries, corrosive gases are contained in the process, so corrosion-resistant vacuum pumps should be selected. In the production and baking process of lithium-ion battery vacuum pumps, there are two types of pumps: ordinary baking process and oven process. The selected pump is different. Ordinary baking process requires slightly lower vacuum degree, oven process requires high vacuum, ordinary process selects stainless steel vacuum pump unit, and vacuum oven must choose dry screw vacuum pump unit.