In the last paper presented by scientists from the Paul Scherrer Institute and the Polytechnic Federal School of Zurich (Switzerland) talk about how a procedure very simple and above all profitable allows significantly optimize the performance of conventional lithium ion batteries so you can substantially increase its capacity and above all significantly reduce the usual load times.
To the seems and as reviewed Claire Vilevieille, head of the research group in charge of the development of this project, apparently this new find has taken place thanks to all the study has tried to give a completely different approach to this technology. One of the main advantages is that, while today many are teams of researchers seeking to develop new batteries currently using completely different to those used compounds, they have focused on working with known materials.
Best batteries thanks to the internal optimization of graphite sheets
According to the feasibility of this technique studies carried out by the team of researchers, while optimization achieved is very high, the truth is that in the commercial batteries the results would not be as good because, as they explain, that the complexity of its construction would be very high. Even so, talk that the storage capacity would be increased in a proportion that would be around 30-50%.
The real key to achieve this optimization can be found in the new approach it has given to the anodes which, in turn, are made of graphite. When the battery is being charged, electrons must travel from cathode to anode through a fluid electrolyte. When the battery is in use, the ions must travel back to the cathode, but are forced to take many detours due to the dense mass of graphite. Because of this is much committed the battery performance. One way to avoid these detours is which has developed the team making graphite flakes lay out vertically during the process of production of anodes.
