Core Viewpoint - The CR450 high-speed train, recognized as the "world's fastest high-speed train," has achieved remarkable speed records, showcasing advancements in technology and innovation in the rail industry, particularly through the contributions of Changhong Power's AI lithium-ion battery system [1][5]. Group 1: Technological Innovations - The CR450 train set a new record with a single train speed of 453 km/h and a relative speed of 896 km/h during tests [1]. - The AI lithium-ion battery system developed by Changhong Power is 57% lighter and incorporates a predictive health management (PHM) technology that can foresee faults [1][3]. - The PHM system functions like a "smart brain" for the battery, allowing real-time tracking and analysis of electrical parameters, which enhances fault prediction and battery management [3][5]. Group 2: Development Challenges - The development team faced significant challenges in 2023, needing to reduce the battery system's weight by 200 kg to meet overall vehicle weight requirements [5]. - The design team, led by the chief designer, worked extensively to achieve weight reduction while maintaining structural integrity, resulting in a final battery weight of 920 kg [5]. Group 3: Market Impact and Future Applications - The CR450 battery system has received multiple certifications and has achieved a 50% market share in its niche [5][6]. - The technologies developed for the CR450 project can be applied to other sectors, including next-generation subways, low-capacity urban rail, and high-voltage new energy locomotives, indicating potential for market expansion [6].