Experimental demonstration of a scalable room-temperature quantum battery

TL;DR

This paper reports the first experimental demonstration of a scalable, room-temperature quantum battery using an organic-microcavity design, showcasing superextensive charging and power generation.

Contribution

It introduces a practical, scalable quantum battery at room temperature with novel properties like superextensive charging and power, advancing quantum energy storage technology.

Findings

Demonstrated superextensive charging and power generation in a quantum battery.

Achieved a full cycle demonstration of a quantum battery in a single device.

Showed metastabilisation of stored energy at room temperature.

Abstract

Harnessing quantum phenomena in energy storage systems offers an opportunity to introduce a new generation of batteries with quantum-enhanced performance. Until now, the quantum battery has largely remained a theoretical concept, with little progress towards experimental realisation, due to the challenges in quantum coherent control. Here, we experimentally demonstrate a scalable room-temperature quantum battery with a multi-layered organic-microcavity design. We show that it exhibits superextensive charging, metastabilisation of stored energy, and generates superextensive electrical power, the latter an unpredicted phenomenon. The combination of these properties in a single device is the first demonstration of the full cycle of a quantum battery, laying the framework for future designs.