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Do quantum batteries store energy?

Like normal batteries, quantum batteries—as they are imagined—store energy. But that’s where the similarities end. Unlike the chemical reactions that both charge up and expend a battery’s stored energy, quantum batteries are powered by quantum entanglement or behaviors that more closely tether the battery and its source.

What are the unique properties of quantum batteries?

These correlations underpin the unique properties of quantum batteries. Quantum batteries are a redesign of energy storage devices from the bottom up. They are modeled with the simplest quantum energy storage system: a collection of identical qubits, which can be sub-atomic particles, atoms or molecules.

What is a quantum battery?

“Quantum batteries are composed of many quantum cells that act like one big quantum battery,” said Ju-Yeon Gyhm, a quantum researcher at Seoul National University in South Korea, in an email to Gizmodo. “The challenge is how to maintain the quantum properties for a long time.”

How do quantum batteries work?

“Quantum batteries act more like a wave where the molecules or atoms act in unison, whereas in conventional batteries the molecules or atoms act more like individual particles,” said James Quach, a quantum researcher at the University of Adelaide in Australia, in an email to Gizmodo.

Can quantum batteries be used as a mobile energy source?

Quach believes that quantum batteries could be used as a mobile energy source in phones and cars, but many quantum systems currently need very cold, noiseless conditions to stay that way (as an aside, Quach’s 2022 experimental setup operated at room temperature).

What's the difference between a quantum battery and a lithium battery?

"Current batteries for low-power devices, such as smartphones or sensors, typically use chemicals such as lithium to store charge, whereas a quantum battery uses microscopic particles like arrays of atoms," explains Yuanbo Chen, a physics graduate student at the University of Tokyo.

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