【中国新闻网】中国发布国际首个聚焦高温超导带材发展战略研究报告

Core Insights - The report titled "2025 REBCO High-Temperature Superconducting Tape Strategic Research Report" was officially released by the Chinese Academy of Sciences, focusing on the development of REBCO (Rare Earth Barium Copper Oxide) high-temperature superconducting tape [1][2] - The report outlines the current state of research, industrialization, and application of REBCO globally, identifying ten key scientific and technological challenges that need to be addressed for large-scale application of high-temperature superconducting materials [1][3] Industry Overview - Superconducting materials are recognized for their zero electrical resistance and complete diamagnetism, making them strategically valuable in various fields such as energy, transportation, medical, and scientific research [3] - Traditional superconductors operate at extremely low temperatures, leading to high cooling costs and reliance on scarce helium resources, which has limited their application to specialized areas like particle accelerators and high-end medical devices [3] - REBCO high-temperature superconductors, with critical temperatures above liquid nitrogen levels, significantly reduce cooling costs and enhance performance in carrying current and resisting magnetic fields, paving the way for broader applications since their commercialization in 2006 [3][4] Applications - In the power system, REBCO tapes can be used to manufacture superconducting cables and fault current limiters, which are essential for urban grid upgrades and ensuring grid safety during short circuits [4] - In magnetic systems, REBCO tapes are applicable in nuclear fusion devices, high-field magnetic resonance imaging, and superconducting motors, which require high mechanical strength and stability [4] Key Scientific and Technological Challenges - The report identifies ten critical scientific and technological issues hindering the large-scale application of REBCO tapes, spanning from the base layer to the superconducting functional layer [5] - These challenges include improving the yield strength and fatigue resistance of alloy substrates, overcoming limitations in buffer layer materials, achieving stability and uniformity in thin-film deposition, and enhancing the bonding strength between layers [5][6] Future Directions - The report emphasizes the need for collaborative innovation in materials, processes, and applications to enhance the performance of REBCO tapes [7] - Key areas for future development include optimizing the internal structure of the superconducting layer, improving the balance of strength and toughness in the substrate and buffer layers, and developing scalable and consistent manufacturing processes to meet growing application demands [7]