Cells Making Machine Company | Cells Making Machine Supplier

During the whole winding process, in order to ensure the high consistency of the battery assembled from the cells, it is necessary to pay special attention to the tension control of the winding. Winding tension control is a high-speed dynamic balance process. The winder has high requirements in terms of electrical and software control, requiring fast response of the servo control system, and software programming also requires a unique level of experience.

The main purpose of coating is to uniformly coat the slurry with good stability, good viscosity and good fluidity on the surface of the positive and negative electrodes. Its significance to lithium batteries is mainly reflected in three aspects: consistency, cycle life and safety. In the coating process, it is strictly necessary to ensure that no particles, sundries, dust, etc. are mixed into the pole piece. If the sundries are mixed, it will cause a micro-short circuit inside the battery, and in severe cases, the battery will catch fire and explode.

Low-end slitting machines have low mechanical precision and simple tension control, which cannot be adapted to the slitting of ultra-thin film materials. With the improvement of users' requirements for slitting efficiency and slitting quality, high-end slitting machines gradually have the function of wavy edge slitting, and have better tension control technology to optimize slitting speed and slitting quality.