Hydrogen is often stored in its liquid form at cryogenic temperatures (≈ −253 °C). This ultra-cold environment can be leveraged to cool power electronics in stationary fuel cell systems or hydrogen-powered aviation, while also drastically reducing conduction losses.
But there’s an important design aspect to address in cryogenic power electronics: operating the devices at these temperatures can introduce an often overlooked, safety-critical thermal runaway mechanism involving the device junction temperature—and it becomes more pronounced as the coolant temperature drops.
To read more about this newly described phenomenon visit: 10.1109/TPEL.2025.3564345
