明确稀土钡铜氧从“能用”到“好用”路线图

Core Insights - The report released by the Chinese Academy of Sciences focuses on the development of REBCO high-temperature superconducting tapes, outlining the current state of research, industrialization, and application globally, and identifies ten critical scientific and technological issues that need to be addressed for large-scale application [1][2]. Group 1: REBCO High-Temperature Superconducting Tapes - REBCO high-temperature superconducting materials have a critical temperature above the liquid nitrogen range (-196°C), significantly reducing cooling costs and enabling broader practical applications compared to traditional superconductors that require extremely low temperatures (-269°C) [1]. - Since its commercialization in 2006, REBCO tapes have shown great potential in key areas such as magnetic confinement nuclear fusion, advanced medical imaging, large scientific installations, and superconducting power equipment [2]. Group 2: Applications and Systems - In the power system sector, REBCO tapes are primarily used in superconducting cables and fault current limiters, which enhance the safety and stability of power grids by allowing high-capacity, low-loss transmission [2]. - In the magnet system sector, REBCO tapes are applied in high-end equipment such as nuclear fusion devices and high-field magnetic resonance imaging, where high mechanical strength and operational stability are critical [2]. Group 3: Challenges and Future Directions - The report identifies ten key scientific and technological challenges that hinder the large-scale application of REBCO tapes, emphasizing the need for improvements in material performance, processing techniques, and application integration [3]. - Future development should focus on optimizing the internal structure of the superconducting layer, improving the balance of strength and toughness in the composite structure, and developing scalable, consistent manufacturing processes to meet the growing demand for large-scale applications [3].