Toshiba’s superconducting motor boosts hydrogen-powered flight future

Toshiba and Airbus have launched a joint research initiative to develop superconducting motor technology for hydrogen-powered aircraft. Central to this collaboration is Toshiba’s 2-megawatt prototype superconducting motor, completed in 2022, which is notably compact and lightweight—about one-tenth the weight of conventional motors with similar output. This high power-to-weight ratio is crucial for aviation, where reducing weight directly impacts efficiency and feasibility. The motor is intended for electric propulsion systems where hydrogen fuel cells generate electricity to power the superconducting motors, differing from traditional hydrogen combustion engines. A key innovation in this research is leveraging the cryogenic properties of liquid hydrogen fuel, stored onboard at −253°C, to simultaneously serve as the coolant for the superconducting motor. This dual-use approach could eliminate the need for separate cooling systems, significantly enhancing overall efficiency and potentially extending flight range. While still in early stages, the technology shows promise not only for aviation but also for maritime and space applications. The joint effort aims to