Solid oxide electrolysis cells (SOECs), a key technology for producing green hydrogen without carbon emissions, require a high-temperature “sintering” process to harden ceramic powders. Researchers at KAIST, led by Professor Kang Taek Lee from the Department of Mechanical Engineering, have successfully shortened this process from six hours to just 10 minutes, while also reducing the required temperature from 1,400°C to 1,200°C.