高工锂电·2025-07-31 09:40Group 1 - The 2025 High-tech Lithium Battery Annual Conference will be held from November 18-20, 2025, at JW Marriott Hotel in Shenzhen, featuring the 15th anniversary celebration and the Golden Ball Award ceremony [2] - The cylindrical lithium batteries (18650, 21700, etc.) are widely used in various consumer markets, including 3C electronics, electric two-wheelers, and portable energy storage, due to their standardized design and scalability [2][3] - The recent resumption of H20 chip supply by NVIDIA is expected to accelerate the construction of domestic data centers and intelligent computing centers, increasing the demand for Battery Backup Units (BBUs) [2] Group 2 - BBUs generally prefer using cylindrical lithium batteries like 18650 and 21700 due to their compact size and cost-effectiveness, making them suitable for direct installation in servers [3] - Major manufacturers of BBUs include tech giants like NVIDIA, Apple, and Microsoft, with domestic battery companies such as Aibot, Yiwei Lithium Energy, and Xinnengda quickly entering this market [3] - The demand for cylindrical battery cells for BBUs is projected to reach 220 million units by 2025 and exceed 600 million units by 2030, indicating a significant growth opportunity [4] Group 3 - The all-tab technology is emerging as a new trend in cylindrical battery technology, aimed at reducing internal resistance and heat generation [4] - BBU batteries typically use high-nickel ternary cylindrical batteries, which improve energy density but may increase safety risks; however, all-tab technology enhances stability and safety for data centers [5]