Lithium-ion batteries, used in almost all modern gadgets, have several key disadvantages. Among them - a negative impact on the environment and the high cost of production. Scientists from the Chalmers University of Technology in Sweden and the National Institute of Chemistry in Slovenia have found a solution to these and many other problems of modern nutrition.
According to researchers, aluminum-containing cells can be considered a promising alternative to lithium-ion batteries. The thing is that aluminum is not only cheap to manufacture, but also much more environmentally friendly. The only obvious drawback of aluminum batteries is their low energy storage density. This is due to the need to use graphite cathodes, which essentially put an end to the low cost of such batteries.
In a new concept presented by Patrick Johansson of Chalmers together with a research team in Ljubljana led by Robert Dominko, graphite was replaced by an organic nanostructured cathode made from a carbon molecule of anthraquinone.
The developer of the new cathode, Jan Bitenk, argues that the advantage of this organic molecule in the cathode material is that it allows you to store positive charge carriers from the electrolyte - a solution in which ions move between the electrodes, which makes it possible to have a higher energy density in the battery. According to experts, the density can be increased by 2 times.
When asked about the prospects of the new technology, scientists replied that the potential of aluminum in the production of batteries has just begun to unfold. Research is underway to find an even more efficient electrolyte since the current version contains chlorine. Despite the current difficulties, scientists believe in the success of aluminum batteries and believe that they have every chance to replace lithium-ion cells.