Monday, October 2, 2023

Wirelessly Rechargeable Quantum Batteries May Never Lose Their Efficiency

Wirelessly Rechargeable Quantum Batteries May Never Lose Their Efficiency Faced with current energy challenges, quantum batteries are emerging as a promising solution. Based on the principles of quantum mechanics, they offer optimized energy storage and release. The research reveals a charging potential that far exceeds that of conventional batteries. This technology could guarantee the availability of sustainable energy.

In the face of growing energy demand and ecological imperatives, the search for innovative solutions is more relevant than ever. Batteries, essential elements of our daily technological lives, are at the center of these innovations. These include quantum batteries, which offer the prospect of optimal wireless charging and efficiency.

According to a recent study by Lanzhou University (China), they may never lose efficiency, unlike traditional batteries that wear out quickly and lose autonomy over time. This breakthrough could push the limits of what we thought possible in energy storage. The study is available on the platform.
arXivawaiting peer review.


Quantum mechanics: a pillar of tomorrow’s batteries

Quantum mechanics, often perceived as complex and abstract, analyzes the behavior of particles on an extremely small scale, that of atoms and subatomic particles. At this scale, the classical laws of physics no longer apply, giving way to surprising and sometimes counterintuitive phenomena.

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It is precisely this singularity that is exploited in quantum batteries. Using the principles of quantum mechanics, these batteries have the ability to store energy differently than conventional batteries. This storage method allows for faster and more efficient energy release.

Although the growing interest in quantum batteries seems recent, it is important to note that the scientific foundations for this technology were laid several years ago. The various publications dedicated to this topic highlight an important characteristic of quantum batteries: their exceptional charging capacity.

While conventional batteries have well-defined limits on capacity and charging speed, quantum batteries appear to pave the way for significantly higher performance. Experts agree that this technology could redefine current standards, offering hitherto unexplored possibilities in the field of energy storage.

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Innovate charging method

However, these batteries are sensitive to external disturbances, which could lead to a loss of charging capacity or a decrease in efficiency over time. Jun-Hong An, lead author of the current study, and his team sought a solution to this problem by proposing a new charging method.

Instead of using a traditional method where the battery and charger are in direct physical contact, Jun-Hong An’s team explored a different approach. They introduced a “waveguide,” which is essentially a rectangular-shaped metal conduit. An electromagnetic field is generated within this conduit.

The battery and charger are placed in separate locations within this tube, without touching each other. The electromagnetic field present in the waveguide allows the battery to be charged, even without direct contact with the charger. It is this interaction between the field, battery, and charger within the waveguide that enables efficient wireless charging of quantum batteries.

The effectiveness of quantum batteries is just the tip of the iceberg. They could lead to less bulky devices, suitable for a new generation of thinner and lighter devices. In addition, its durability is another strong point. Unlike conventional batteries that weaken over time, quantum batteries could maintain their performance for a longer period, reducing the need for frequent replacements.

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Obstacles to overcome

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The widespread adoption of quantum batteries is not a mere formality. One of the main challenges has to do with large-scale production. Although the principles are established, the transition from theory to industrial practice requires technical adjustments and innovations.

In addition, Jun-Hong An and his team now plan to integrate more devices into their charging system, and even conduct experimental tests using small defective diamonds, already used in quantum communication.

More studies are needed to assess the risks. It is also imperative to estimate the ecological footprint of quantum batteries, from their manufacturing to the end of their useful life, to ensure that they truly contribute to a more sustainable future.

Times of National
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