全场景电动化加速大圆柱验证，逸飞激光“牵头”技术升级

Core Viewpoint - The active demand in the large cylindrical battery terminal market is driving technological iteration and the maturity of production processes [3][10]. Group 1: Market Trends and Projections - By 2025, the industrialization and commercialization of large cylindrical batteries will accelerate, with increasing penetration in the passenger car market due to advantages in energy density, fast charging, and safety [4]. - The demand for large cylindrical batteries is expected to explode as they expand into various applications, including energy storage, eVTOL, lightweight power, and more [5][6]. - High-tech research predicts that by 2030, the shipment volume of cylindrical batteries in China will exceed 400 GWh, with a compound annual growth rate of over 50.1% from 2023 to 2030 [5]. Group 2: Technological Advancements and Collaborations - The project initiated by Yifei Laser aims to enhance the mass production process and equipment level of large cylindrical batteries through collaborative innovation among government, industry, academia, and research [6][10]. - The focus of the project is on the laser welding of full-tab cylindrical batteries, addressing challenges such as high-reflectivity materials and precise temperature control during welding [6]. - Yifei Laser has made significant breakthroughs in key processes and technologies for full-tab cylindrical batteries, achieving mass production with a yield of thousands of parts per million (ppm) [5][10]. Group 3: Industry Collaborations and Equipment Development - Yifei Laser has launched a series of equipment for assembling full-tab cylindrical battery cells, which are favored by leading battery manufacturers and automotive companies due to their high efficiency and yield [8]. - The company has provided professional and efficient technical verification and engineering services to over 170 universities, research institutes, and industry chain enterprises, effectively addressing key bottlenecks in technology transfer [10].