How long does it take to weld a battery pack?

For a battery pack consisting of 117 Cells (9 x 13), this means there are 234 sites to weld and total process time of 514.8 seconds. Since laser welding is a non-contact process, the only motion is making a weld pattern and the motion moving the beam from cell to cell. The weld cycle time is a combination of shots and small motion on a cell.

How much energy does a battery pack use?

Of this, 38% of the energy is consumed by the electrode drying process and 43% by the dry room equipment. The energy consumption of the battery pack assembly process was only 0.03 kWh/kg during the battery pack production . Figure 2. Current and future direct costs of BEVs and ICEVs .

Can a laser be used for battery module welding?

Laser welding is significantly faster showing the allure of the laser for battery module welding. Cycle time can be reduced even further with the use of a galvo scanning system, where some motion is handled by quick motions in the galvo head, and then indexed after all cells within the welding field are addressed.

Do high-volume production requirements affect welding performance in battery assembly?

Moreover, the high-volume production requirements, meaning the high number of joints per module/BP, increase the absolute number of defects. The first part of this study focuses on associating the challenges of welding application in battery assembly with the key performance indicators of the joints.

How much energy does the battery pack assembly process consume?

The energy consumption of the battery pack assembly process was only 0.03 kWh/kg during the battery pack production . Figure 2. Current and future direct costs of BEVs and ICEVs . However, the assembly of a battery pack is a critical process for the major OEMs.

How are battery cells welded?

Different welding processes are used depending on the design and requirements of each battery pack or module. Joints are also made to join the internal anode and cathode foils of battery cells, with ultrasonic welding (UW) being the preferred method for pouch cells.