As global electrification and energy storage both enter the fast lane of development, the demand for lithium batteries has shown explosive growth. Among them, Chongqing, the "mountain city", has gradually become the highland of the battery industry in southwest China by virtue of its unique geographical and resource advantages. The China International Battery Exhibition (CIBF2024) landed here for the first time, aiming to inject new impetus into the progress of the battery and new energy industry in southwest China.
As a model of "high specification" and "high level" in the industry, Dongguan Shengxiong Laser Advanced Equipment Co., Ltd. held the "500W picosecond all-laser high-speed production and lamination - seamless cutting and stacking integrated solution conference" at booth N3-T069 of Chongqing International Expo Center on April 27, which was upgraded again from the three levels of [higher power (500W), faster efficiency (240PPM), and lower cost (no consumables for four years)], providing a new solution for the battery manufacturing process.
At 11:00 a.m. on April 27th, Shengxiong Laser's 500W picosecond all-laser high-speed production and lamination - seamless cutting and stacking integrated solution press conference officially began.
At the press conference, Mr. Tao Xiongbing, chairman of Shengxiong Laser, first delivered a speech:
In recent years, laser technology has been widely used in the pre- and mid-section manufacturing processes of power batteries due to its high efficiency, precision, flexibility, reliability and stability, low welding consumables loss, high degree of automation and safety.
Previously, the cutting of pole pieces in the laminated structure of power batteries mostly relied on the processing technology of hardware knife molds and fiber nanosecond lasers. However, there are significant drawbacks to these two cutting methods: the maintenance cost of the hardware die is high, the flexible production capacity is insufficient, and the production effect is not satisfactory; although the fiber nanosecond laser has its own unique features, it is easy to produce molten beads and has a large heat-affected zone, and more problematicly, it cannot effectively cut the cathode area, and the technical bottleneck needs to be broken through urgently.
Therefore, we urgently need to explore more advanced and efficient cutting technologies to improve the performance and production efficiency of power batteries.
Mr. Tao said: In the past 12 years, Shengxiong Laser has been focusing on the exploration of cutting, drilling, etching and other application fields of solid-state lasers, and has deepened the understanding and cognition of solid-state laser technology through cooperation with the world's top companies.
The new solution released by Shengxiong Laser this time is mainly to use a 500W picosecond laser laser to make high-speed all-laser production and how to integrate it with lamination.
According to Mr. Tao, the solution places the laser on top of the equipment, and the amount of laser configuration is determined by the length of the battery. Given the high voltage predominance of power batteries on the market today, such as 800V power batteries, their compact size leads to a reduction in the number of lasers required, resulting in a more competitive cost.
After using the 500W picosecond laser to achieve high-speed production, the material is seamlessly connected to the full linear drive stacking module through the conveyor belt, and as long as the stacking machine can match the production speed, the processing efficiency of 240PPM of positive and negative electrode pieces can be easily achieved without width limitations. In addition, the solution is highly compatible, and old equipment can also be upgraded to achieve efficiency improvement without additional cost investment.
At present, if the 590 battery cell is all-laser cutting, the cutting and pulling time is accurately controlled within 0.1 seconds. Theoretically, 500W picosecond laser cutting can achieve a processing efficiency of 300PPM, but it has not yet been realized due to the processing efficiency of the lamination machine.
In addition, Shengxiong Laser's 500W picosecond all-laser high-speed production and lamination - seamless cutting and stacking integrated solution, whether it is matched with Z-stacking process, hot mixing process or multi-stacking process, is easy, mainly due to its fast laser production speed. With the core advantages of higher power, faster efficiency and lower cost, this all-laser high-speed seamless cutting and stacking solution can create greater profit margins for enterprises, effectively help enterprises achieve intelligent transformation, reduce costs and increase efficiency.
It is worth mentioning that Shengxiong Laser's 500W infrared picosecond laser is the highest-power infrared picosecond laser that can be industrially mass-produced, and the repetition rate is as high as 3-5MHz. In addition, Shengxiong Laser can be independent of core technologies such as seed source, electronic control system, galvanometer, and software system.
After the speech, Mr. Tao launched the unveiling ceremony of the new product. Subsequently, Shengxiong Laser's 500W picosecond all-laser high-speed production and lamination - seamless cutting and stacking integrated solution ushered in the world debut, and the audience and media reporters raised their cameras to commemorate this historic moment.
At the scene, Mr. Tao elaborated on the exquisite operating principle of the scheme and demonstrated it, which shows that the scheme efficiently integrates multiple devices to achieve the perfect combination of functions.
With the support of laser technology, the process technology can be streamlined, and the production cycle will be greatly reduced, so as to realize the integration of all-laser high-speed production, lamination and seamless cutting and stacking, reducing costs and increasing efficiency for the production of power batteries.
This wonderful demonstration attracted the audience to rush forward and have in-depth exchanges and discussions with Mr. Tao.
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At the Shengxiong laser new product launch conference, many guests witnessed the new application of laser technology in the field of lithium battery manufacturing, and the atmosphere of the conference was warm, and every link was full of innovation and breakthrough. The lottery event pushed the atmosphere to a climax, and the guests were enthusiastic and felt the charm and strength of Shengxiong Laser. After the exciting awards were announced one by one, the new product launch conference came to a successful conclusion.
However, Shengxiong Laser's journey is not over. Looking forward to the future, Shengxiong Laser will continue to deepen the field of laser technology and continuously promote the innovative application of laser technology in lithium battery manufacturing and other industries. Focus on the research and development of more efficient, more stable and more intelligent laser equipment, to provide customers with better service and more perfect solutions.
At the same time, Shengxiong Laser is also looking forward to working hand in hand with more partners to jointly create a new chapter in laser technology and contribute more to the prosperity and development of the industry.
From: ofweek
Reprinted by Chen Changjun of the Yangtze River Delta G60 Laser Alliance
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