Fu-Quan Dou

The new scheme uses a light-filled cavity where photon pairs, like sharp jolts, instantaneously transfer energy to a chain of qubit cells. Quantum links inside the cells suppress leakage, making the battery immune to noise and defects.

Quantum batteries based on nuclear isomers store millions of times more energy than chemical ones and can hold a charge for millennia. Charging requires a precisely timed blast from an X-ray laser.