Recently, Colibri New Energy's "Laser Welding System" won the "2021 Technology Award" at the 2021 GGII Annual Conference and GG Golden Globe Award Ceremony.

Li Xiaobo, General Manager of Colibri New Energy, attended this award ceremony

In this award-winning "laser welding system," Colibri utilizes an integrated controller to integrate multiple technologies and address the problems in welding.

Integrated multi-compatible laser control system - high-speed response

The system utilizes the integrated control method of laser motion, which can reduce the interaction time between controllers (PPM increased from 15 to 24) through laser energy control (PSO), high-speed motion control, visual control, etc. It combines with the whole welding process detection system, which can obtain the real-time data like depth of fusion and weld width. The welding speed is fast with high efficiency and excellent consistency is good, thereby enhancing the product quality and yield.

To address the problems of weld penetration and fusion accumulation at the arc of the power battery cell top cover, Colibri New Energy Laser Welding System utilizes the new position-synchronized laser energy control technology, which features 2D/3D weld defect detection function. It also applies the self-learning trajectory planning algorithm, which is characterized by the visual auto-focus function, and can shorten the commissioning time.

Highlight and advantage:

• Digital scanning control system + PSO position synchronization output, zero latency
• The innovative welding mode significantly improves the speed, with the welding speed reaching 400mm/s
• With the whole process detection technology, it achieves the closed-loop control and the yield rate represents an increase of 99.8%;
• It has diversified wielding forms like top cover vertical welding, top cover side welding and top cover spin welding, which can be provided with the customized services as per the cell type.

Innovative welding mode notably improves the speed - long cell welding

It innovates the welding mode of welding head XY axis interpolation + fixed product welding, and utilizes the welding head + product multi-axis linkage, remarkably enhancing the welding speed, with the welding speed reaching 400mm/s;

Welding quality visual inspection technology increases yield

Through the self-developed visual algorithm, advanced laser coaxial and paraxial location technique, it combines with mainstream laser displacement sensors and laser welding real-time monitoring system, thereby quickly and precisely positioning before welding, monitoring welding temperature, power, and weld deviation and defective welding of connection online. It can also automatically detect and review the 2D/3D defect after welding. During the whole welding process, it adopts the quality closed-loop control that is fully transparent and traceable, which can reduce rework and increase the yield from 98% to 99.8%.

Colibri Technologies has been exploring the lithium battery industry for over ten years, focusing on the middle and back section manufacturing of lithium batteries. Colibri New Energy has focused on core technology platforms such as high-speed and high-precision motion control technology, machine vision and AI technology, and laser application technology. In the sectors of bare cell production, cell assembly, chemical composition and capacity of lithium battery manufacturing. It has a complete business line that covers all battery types.

In the future, Colibri New Energy will continue to implement product technical planning, further increase R&D investment, so as to ensure that the product had leading performance and create maximum value for customers. Under the opportunity of the third energy revolution, Colibri New Energy will provide leading intelligent manufacturing solutions for the sustainable energy industry, thereby contributing to achieving the great objective of carbon peak and carbon neutrality.