Core Insights - The demand for Backup Battery Units (BBU) is expected to rise significantly due to the transition from traditional Internet Data Centers (IDC) to Artificial Intelligence Data Centers (AIDC), with a projected need for over 600 million high-rate cylindrical batteries by 2030 [1][2] Industry Overview - The BBU supply chain consists of battery manufacturers, equipment companies, and server enterprises, with Japanese and Korean companies dominating over 80% of the market share [2] - Domestic companies such as Weilan Lithium Chip, Yiwei Lithium Energy, and Xinneng An are beginning to supply samples, while Taiwanese firms like Delta and New Power are key players in the equipment sector [2][5] - NVIDIA holds a significant market share in the server segment, integrating BBU solutions into its GB200 and GB300 models [2] Market Dynamics - The profitability of BBU batteries is notably higher than that of standard batteries, prompting many Chinese companies to focus on this sector, with several launching new products aimed at high-rate applications by 2025 [5] - Domestic companies like Weilan Lithium Chip have initiated small-scale supplies to major clients, while Yiwei Lithium Energy and Xinneng An have begun production of their full-tab batteries [5] - As demand for BBU batteries increases, Chinese battery manufacturers are positioned to rapidly capture market share [5]