A hydrogen battery that works at 250 °C without a drop of water: researchers solve a problem that had been stalled for decades

Monash University researchers developed an ultrathin membrane for hydrogen fuel cells that works at 250°C without water.

The membrane uses graphene and boron nitride nanosheets to confine phosphoric acid and enable proton transport.

It showed high conductivity, strong power density, and stable operation for 150 hours in tests.

The advance could lower cost and complexity for hydrogen vehicles, energy systems, and industrial electrochemical uses.