Batteries continue to be the great pending challenge for electric mobility. Electric motors have amply demonstrated their effectiveness, offering high performance, silent operation and immediate response. However, weight, cost, dependence on critical raw materials and recharging times remain difficult obstacles to overcome. Therefore, any advance in this field arouses enormous interest, even when it is still in a purely experimental phase. As is the case.
Precisely, and as we are telling you, that is what happens with research carried out by scientists from the Northwestern Universityin the United States. The team has developed a liquid material with an unusual capacity. Yes, you can capture energy, store it, and release it using a single system, something that currently requires several different components. The results have been published in the scientific journal Chem and they represent a completely different concept from the conventional batteries we know today.
This is the secret of the liquid battery that can change everything
The key to this technology lies in a yellow fluid that changes radically when charged with energy. During this process, the liquid transforms into a type of dark gel capable of conserving the accumulated energy for long periods of time. When the time comes to use that energy, the material can be discharged and subsequently returned to its original state. The most surprising thing is the simplicity of the process. In fact, it is enough to expose it to air for the oxygen to break down the gel structure and turn it back into a liquid. From there, the cycle can repeat itself over and over again.
Furthermore, the system does not depend on a single energy source. According to researchers, it is capable of capturing energy from light, chemical reactions, electricity and even X-ray radiation, which opens the door to very diverse applications in the future.
The inspiration for this development comes from the biological world. The scientists took as a reference the functioning of the cellular cytoskeleton, a complex network of structures that allows cells to constantly change shape and adapt to the needs of each moment. Unlike the rigid and permanent human skeleton, the cytoskeleton is continually built and disassembled. The new energetic material acts in a very similar way: it reorganizes its molecular structure when it needs to store energy and modifies it again when it needs to release it.
The researchers sought precisely to create a system capable of behaving dynamically, almost like a living organism, but intended for a specific technological function. The result is a material that literally rebuilds itself during the energy storage process. Another particularly striking aspect is that it can continue generating electrons even when the light source disappears. This phenomenon, known as dark photocatalysis, allows the process to continue once the light exposure has ended, something unusual in photosensitive materials.
Could electric motorcycles one day come? For the moment, the answer is clear: no. At least not in the short term. Those responsible for the project themselves recognize that the current energy capacity is extremely limited. According to their estimates, just one gram of this material could store the energy necessary to power a smart watch. A figure very far from the several kilowatt-hours required by any modern electric motorcycle.
This means that high-performance models such as current electric motorcycles will continue to depend on lithium batteries for many years. However, the true interest of this research is not in the capacity it offers today, but in the concept it proposes for the future. The possibility of developing water-based storage systems, without the need for heavy metals or large amounts of plastic, and with potentially unlimited recharge cycles, represents a particularly promising line of research.
If this technology manages to evolve and significantly increase its energy density, it could become a very interesting alternative to solve some of the main problems that currently affect electric mobility. At the moment, we are dealing with a laboratory experiment and not a commercial product. But, it is also true that many of the technologies that we consider common today began exactly like this.
