World’s First Quantum Battery: Faster Charging Energy Storage Developed in Australia
Australian researchers have demonstrated the world’s first proof-of-concept quantum battery, a development that could dramatically accelerate energy storage and delivery for a range of technologies. The prototype, engineered by a team led by the Commonwealth Scientific and Industrial Research Organisation (CSIRO), in collaboration with RMIT University and the University of Melbourne, successfully charged, stored, and discharged energy, marking a significant step toward realizing the potential of quantum mechanics in energy systems.
The research, published in Light: Science & Applications, details the creation of a multi-layered organic microcavity battery wirelessly charged using a laser. Researchers verified the prototype’s performance using advanced spectroscopy techniques at the University of Melbourne’s Ultrafast Laser Laboratory. “Similar to conventional batteries, quantum batteries charge, store and discharge energy,” explained University of Melbourne Associate Professor James Hutchison. “But while everyday batteries rely on chemical reactions, quantum batteries leverage properties of quantum mechanics.”
A key advantage of the quantum approach, according to Hutchison, lies in its ability to absorb light in a single, collective event, resulting in faster charging times. Professor Trevor Smith, as well of the University of Melbourne, highlighted the critical role of the Ultrafast Laser Laboratory in confirming the battery’s rapid charging behavior. “The unique capabilities of our Ultrafast Laser Lab…were critical in enabling us to record ultrafast signals over orders of magnitude in time,” he said.
The prototype retained stored energy for six orders of magnitude longer than it took to charge, a result that confirms key predictions about quantum batteries. Dr. James Quach, quantum science and technologies science leader at CSIRO, who led the team that engineered the prototype, emphasized the counterintuitive nature of the findings. “Our findings confirm a fundamental quantum effect that’s completely counterintuitive: quantum batteries charge faster as they obtain larger. Today’s batteries don’t function like that,” he stated.
While fully functioning quantum batteries are still years away, the successful demonstration of this proof-of-concept validates the potential for unprecedented efficiency and speed in energy storage. Quach envisions a future where electric vehicles can be charged as quickly as refueling a gasoline car, and devices can be charged wirelessly over long distances. “The research and proof-of-concept validates the exciting potential of quantum batteries to achieve rapid, scalable charging and energy storage at room temperature, laying the groundwork for next-gen energy solutions,” he said.
The next phase of research will focus on extending the duration of energy storage within the quantum battery, according to Dr. Quach. The team is also exploring methods for scaling up the technology for practical applications.