Views: 0 Author: Site Editor Publish Time: 2025-06-25 Origin: Site
As the global demand for clean energy surges, energy storage stations are becoming pivotal in balancing energy supply and demand and boosting efficiency. In the first half of 2024, newly grid - connected energy storage projects in China exceeded 1GWh in individual scale, signaling the arrival of the "GWh era" for energy storage.
However, the scaling - up poses multiple challenges for energy storage station construction, among which the efficient connection and safe operation of battery modules are crucial, and welding equipment plays a vital role in this regard.
Battery modules, formed by series and parallel connections of cells, have their connection quality directly impacting the performance and safety of energy storage stations. Unstable welds can increase contact resistance, cause heat buildup, reduce energy conversion efficiency, and even trigger thermal runaway.
Currently, various welding devices are used for battery modules, such as resistance - based spot welders and laser welders. Resistance spot welders apply pressure through electrodes and pass a large current to generate heat at the workpiece contact area, rapidly heating the metal to a plastic or molten state for a secure weld. This method is fast and minimizes thermal impact on other battery parts. Laser welders, utilizing high - energy - density laser beams, enable precise welding in tiny areas with a small heat - affected zone, making them ideal for high - precision, thermal - control - demanding scenarios like welding tabs of pouch cells and internal electrode connections of prismatic aluminum - cased batteries.
In practical battery module welding for energy storage stations, welding equipment encounters many challenges. Different cell types (prismatic, cylindrical, pouch) have varying tab materials, thicknesses, and shapes. Welding equipment must therefore be highly flexible and adaptable, adjusting parameters to achieve precise welding. For instance, traditional equipment may struggle with ultra - thin tabs, causing poor or excessive welding, while advanced laser welders with auxiliary functions can overcome this.
In mass production, welding equipment needs to operate continuously at high speed while maintaining consistent quality. Take automatic spot welders: each unit must complete hundreds of welds per hour and automatically discard defective products by monitoring welding current and temperature in real - time to ensure product quality.
To meet these demands, welding equipment is constantly innovating. Flexible designs accommodate different battery types, and intelligent upgrades enhance quality and efficiency. PDKJ welders, with nearly two decades of dedicated R & D and production experience, hold multiple authoritative certifications. Their galvanometer laser welders offer high control precision and good thermal efficiency for various metal welding applications. The handheld continuous laser welders are easy to operate, highly efficient, and capable of handling complex scenarios. Additionally, PDKJ provides timely after - sales support, making it a reliable welding equipment choice for energy storage station construction.
If you have welding machine requirements, please contact Ms. Zhao
E-Mail: pdkj@gd-pw.com
Phone: +86-13631765713
