07/20/2025
In a groundbreaking leap for clean energy, UK-based Materials Nexus has developed MagNex, a powerful rare-earth-free permanent magnet, using artificial intelligence.
Created in just three months—200 times faster than traditional methods—MagNex offers a sustainable alternative to conventional magnets reliant on rare-earth metals like neodymium and dysprosium, which are critical for electric vehicles (EVs), wind turbines, robotics, and drones.
These metals, primarily sourced from China, are costly, environmentally damaging, and geopolitically sensitive.
With EV magnet demand projected to surge tenfold by 2030, MagNex, produced at 20% of the material cost and with 70% lower carbon emissions, addresses urgent supply chain and sustainability challenges.
Partnering with the Henry Royce Institute and the University of Sheffield, Materials Nexus leveraged its AI platform to analyze over 100 million compositions, optimizing MagNex for performance, cost, and environmental impact.
Unlike earlier rare-earth-free magnets, which took over a decade to develop through trial-and-error, MagNex’s rapid creation highlights AI’s transformative potential in materials science.
This approach could extend beyond magnets to innovate semiconductors, superconductors, and catalysts, accelerating solutions for climate challenges.
While MagNex’s proprietary composition is undisclosed, its performance must rival rare-earth magnets in properties like saturation magnetization and temperature stability to compete in high-demand applications.
Scalability and industry adoption remain hurdles, given the conservative nature of sectors like automotive and renewable energy.
Supported by Innovate UK funding, MagNex could lower costs and environmental impacts, advancing net-zero goals.