Quantum batteries promise to revolutionize energy storage forever. Electric cars could say goodbye to lithium-ion or solid-state models and mobile phones would have a practically infinite charge.
This milestone will not be easy, although Japanese scientists from the RIKEN Center for Quantum Computing and Huazhong University of Science and Technology have made an unprecedented achievement. A quantum battery allows energy to be transferred with almost zero resistance to thermal dissipation.
The batteries of the future will be quantum
Scientists from RIKEN and Huazhong University of Science and Technology have designed an extremely efficient topological quantum battery. This model takes advantage of the laws of physics to store energy without losses.
The prototype uses the topological characteristics of photonic waveguides and the quantum state of atoms themselves to store and transfer energy. The study published in Science Daily could open a new path in nanoscale energy storage and optical quantum communication.
Quantum batteries store energy in this state through phenomena such as superposition, entanglement and coherence, it does not follow the traditional chemical reactions of lithium-ion models.
The advantages of these models are innumerable, one of the most useful would be faster charging with record figures. If equipped in an electric car, Recovering full capacity could be faster even than refueling a combustion engine. In addition, they have greater capacity and efficiency in energy extraction.
Quantum batteries are the new promise of science
Lithium-ion batteries seemed to be the future, but solid-state models soon arrived. Environmental sustainability has become a global concern and more efficient models such as quantum batteries are beginning to gain weight.
The next generation of energy storage could use tiny models with no power loss and record-breaking performance. The RIKEN and Huazhong University project is promising, but they will have to overcome the challenges of quantum systems themselves.
The use of non-topological waves instead of conventional ones is the first challenge. The channels that direct the photons are extremely sensitive to curvatures or imperfections. Ambient noise or temperature can also break this perfect stability and cause efficiency to plummet.
The researchers have shown in the study that topological waves allow for almost perfect energy transfer, but it is extremely difficult to maintain optimal conditions.
«By overcoming the practical performance limitations of quantum batteries caused by long-distance energy transmission and dissipation, we hope to accelerate the transition from theory to practical application of quantum batteries,» said Zhi-Guang Lu, first author of the study.