Quantum battery charges in a quadrillionth of a second with a laser — larger prototypes could last for years after charging for just a minute

A battery that charges in one minute and stays charged for two years. That's not science fiction — that's the promise of the world's first working quantum battery, built by researchers and detailed in the journal Light: Science & Applications.

Unlike conventional lithium-ion batteries, which rely on chemical reactions, this device stores energy as electromagnetic excitation among molecules behaving according to the strange rules of quantum mechanics. The result is what researchers call "super absorption" — where charging actually gets faster as the battery gets bigger.

"The advantage of quantum is that the system absorbs light in a single, giant 'super absorption' event and this charges the battery faster," researcher Hutchinson explained.

Right now, it's a proof of concept. Scaling it up without losing its quantum properties remains a significant challenge. But scientists say potential applications are striking — from powering drones mid-flight via laser charging, to running quantum computers at remarkably low energy costs.