Pouch Cell Production Line Equipment On-site Inspection

TOB NEW ENERGY built a 200MWh pouch cell production line for clients in Europe.

In August 2024, TOB NEW ENERGY battery equipment factory ushered in the customer's acceptance team.

In order to meet the client's production plan for pouch cell, the pouch cell production line of clients in Europe was prepared and constructed in a short period of time, and plans to produce 200MWh of pouch cell per year. The construction of the customer's European manufacturing base will enable the company to further expand its production scale to realize the company's plan to explore more types of battery fields in the next few years.

The 200MWh pouch cell production line project has now progressed to the on-site inspection and delivery stage. The inspection work at this stage is mainly focused on the assembly process, especially the electrode cutting and stacking processes.

High speed auto electrode cutting machine

This is a fully automatic high-speed electrode cutting machine, which is suitable for die-cutting and forming positive and negative electrode sheets in the stacking process of power lithium cells. Its production efficiency is≥160PPM, the qualified rate is≥99.5%, and the utilization rate is≥98%.

It adopts double unwinding mechanism, one set is used and the other set is prepared, which can realize fast roll change and improve efficiency. It is equipped with two sets of correction systems, unwinding correction and overall correction, to ensure the forming accuracy of the electrode sheet. With double-sided blank detection function, the servo motor automatically adjusts the feeding length to eliminate coating misalignment errors and ensure the size of the tab material. The dual manipulator moves left and right to collect materials at high speed. Non-contact dust and iron removal, remove dust on the front and back of the electrode. FFU fan is installed on the top of the equipment to supply air. The industrial dust removal system vacuums multiple stations such as die cutting and collecting materials with negative pressure, so that the air inside the machine circulates and absorbs the floating powder in the machine.

Auto stacking machine with CCD checking

The stacking efficiency of this fully automatic stacking machine is≤0.6s/pcs per station. The qualified rate is≥99.5% and the utilization rate is≥98%. It uses a linear motor to drive the manipulator to pick up the sheets and load the materials, and a linear motor to drive the stacking table to move the sheets. It achieves high-speed and high-precision stacking while reducing the noise of machine operation. The CCD system is used to take photos and locate the electrode. The servo three-axis alignment platform corrects the electrode position, and the CCD positioning accuracy is≤±0.1mm. The electrode and the ear can also be positioned to detect the corners, corners, and dimensions, and bad electrodes can be automatically removed.