Moisture has the greatest impact on the performance of lithium batteries. It is necessary to remove the moisture and residual NMP inside the battery core before injection, so as not to affect the quality of lithium batteries.
In the negative pressure environment of the electrode and the core baking, the cartridge is placed on the frame body in the baking box, and the electrode and the core are baked and dried by filling the inert gas. The electrode and the core are exposed to the heat radiation of the heating plate and the convective heat conduction of the inert gas. In the process of heat transfer to the product, on the one hand, it is used to increase the temperature of the core and on the other hand, it is used for the evaporation of free water in the core.