ASIPP Develops Megajoule-class 10kA Forced-flow Cooled HTS Energy Storage Magnet System
2025-11-22
On November 18, 2025, the Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), announced that it had successfully developed a megajoule-class, 10 kA forced-flow-cooled high-temperature superconducting energy storage magnet system, the system has completed low-temperature excitation performance testing and has officially passed evaluation by an expert review panel. In close collaboration with ASIPP, Shanghai Superconductor provided all the REBCO tapes(wires) required for the magnet system, playing a key role in supplying essential materials and process support.
The system achieves a maximum current-carrying capacity of 10.5 kA, with a pressure drop of less than 0.5 bar under forced-flow cooling. During fast ramping at 6kA and 200A/s, the coil temperature rise is kept within 2K, enabling long-term stable operation at high currents and rapid alternating current performance.
The expert review panel unanimously recognized that the related technology is at the internationally leading level, and the next step can be expanded to applications in nuclear fusion, large-scale accelerators, and high-field magnet facilities.
This project's success not only enhances China's independent R&D capabilities for core components of large scientific devices, but also demonstrates the enormous application potential and commercial value of high-temperature superconducting technology as a transformative frontier technology in broad fields such as fusion energy, high-end medical treatment, large scientific devices, and high-speed maglev.