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Superabsorption unlocks key to next-generation quantum batteries

By IQT News posted 19 Jan 2022

Researchers at the University of Adelaide and their overseas partners have taken a key step in making quantum batteries a reality. They have successfully proved the concept of superabsorption, a crucial idea underpinning quantum batteries.
“Quantum batteries, which use quantum mechanical principles to enhance their capabilities, require less charging time the bigger they get,” said Dr. James Q. Quach, who is a Ramsay Fellow in the School of Physical Sciences and the Institute for Photonics and Advanced Sensing (IPAS), at the University of Adelaide.
“It is theoretically possible that the charging power of quantum batteries increases faster than the size of the battery which could allow new ways to speed charging.”
The idea of the quantum battery has the potential to significantly impact energy capture and storage in renewable energy and in miniature electronic devices.
By 2040, energy consumed by people is expected to have increased by 28 percent from 2015 levels. The majority of energy will still come from fossil fuels at great cost to the environment. A battery that is capable of harvesting and storing light energy simultaneously would provide significant cost reduction while reducing the unpredictability of energy from solar technologies.
A new vista in battery technology, driven by the power of quantum mechanics, could become a reality by applying the team’s work.
“The concepts that Dr. Quach and his team have worked on opens up the possibility of a new class of compact and powerful -storing devices,” said the University of Adelaide’s Professor Peter Veitch, Head of School of Physical Sciences.
The next step is to develop a fully functioning quantum battery prototype.

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