In theory, quantum batteries could drastically improve the charging speed thanks to the phenomenon known as “superabsorption” of molecules nested together in a sort of hyper-dense quantum mesh. It is still necessary that we can move from theory to practice, which has just been done by a group of researchers from the University of Adelaide led by the American James Quach.
The latter explains in a paper published on the Science Advances website that “Superabsorption is a global quantum effect where transitions between states of molecules interfere constructively. This interference manifests itself in all types of waves [lumière, son, ondes sur l’eau], and occurs when several of them add up to give a greater effect than an individual wave. Thus, the combined molecules absorb light more efficiently than if each molecule acted individually. »
A quantum battery could thus ” more efficiently “ store energy and above all faster (much faster). Researchers at the University of Adelaide therefore created this famous “quantum” mesh with molecules of Lumogen-F Orange (a dye that serves here as a developer) and placed this mesh in an organic micro-cavity located itself between two highly reflective mirrors composed of several layers of dielectric materials. An ultrafast transient absorption spectroscope was then used to measure the energy absorption rate of the Lumogen-F Orange molecules.
The observation is clear: the charging speed increases proportionally to the increase in density of the molecular mesh. The phenomenon of superabsorption being verified, it is therefore now possible to envisage the creation of quantum batteries based on this phenomenon, even if we are talking here about a technology that would only be available in the very long term.