With the rapid expansion of the new energy vehicle (NEV) market, battery safety and body structure strength have emerged as core areas of consumer concern. Addressing the specific manufacturing requirements of NEVs, HauqHi  (Shanghai) Connection New Technology Development Co., Ltd. has introduced two core technologies—laser welding and plasma activation. By focusing respectively on battery connection reliability and the bonding strength of body materials, these technologies serve to safeguard the safety of new energy vehicles.

In the realm of battery manufacturing, HauqHi  Connection’s laser welding technology demonstrates exceptional performance. For critical applications such as battery casing welding, tab welding, and busbar welding, the company offers integrated laser welding and cutting machines featuring high-precision galvanometer welding systems. These systems achieve welding speeds of up to 3,000 mm/s and are equipped with closed-loop control systems that monitor galvanometer positioning in real-time to ensure welding precision. Furthermore, the equipment supports various oscillating trajectories—including wave, spiral, and figure-eight patterns—enabling it to accommodate the diverse welding requirements of different battery component shapes. This effectively enhances welding strength and hermeticity, thereby preventing safety hazards such as battery leakage and overheating. Currently, this technology has been successfully deployed in the battery production lines of leading enterprises such as CATL and NIO, earning high acclaim from clients.

In the field of vehicle body manufacturing, the INONCON plasma cleaning and activation system—introduced by HauqHi  Connection from Austria—offers an innovative solution for bonding lightweight materials (such as aluminum alloys and PP/PE plastics) used in NEVs. By directing a plasma jet onto material surfaces, this system introduces oxygen-containing functional groups—such as CO, C=O, and O-H—thereby significantly enhancing surface wettability and adhesion. This approach effectively resolves the issues of high cost and environmental pollution associated with traditional primer application and flame treatment processes. Taking battery tray bonding as an example: following plasma activation treatment, the bonding strength of polyurethane-based adhesives is significantly improved. During bonding failure tests, the adhesive layer exhibited cohesive failure—indicating that the bonding reliability between the materials has been substantially reinforced—thereby effectively enhancing the overall structural strength and durability of the vehicle body. The Marketing Director at HauqHi  Connections stated: "The safety performance of new energy vehicles serves as the lifeline of the industry's development. Our R&D efforts consistently revolve around the core requirements of 'safety, reliability, and efficiency.' Moving forward, we will continue to deepen the application of laser welding and plasma activation technologies within the new energy vehicle sector, providing the industry with more targeted solutions and driving the continuous elevation of safety standards for new energy vehicles."