In some peoples’ opinion, electric cars won’t become truly viable until their batteries offer a lot more driving range, and can be recharged much more quickly than is currently possible. Well, those people may soon be getting their wish. Scientists at the University of Southern California have developed a new type of lithium-ion battery with silicon nanoparticles, that they claim holds three times as much energy as a conventional li-ion, and can be recharged in just ten minutes.
The battery was developed that it utilizes anodes made from porous silicon nanoparticles – anodes are the electrodes through which electrical current flows into a battery. Ordinarily, anodes in li-ion batteries are made from graphite.
About use of silicon nanoparticles, one possible approach to prevent the oxidation of silicon nanoparticles during a dispersing process is to use a dispersing medium, which does not contain any oxygen atoms in its structure, e.g. toluene. However, dispersing nanoparticles in such a non-polar organic medium is a major challenge, because the particles tend to aggregate very easily. The attempt of wet-grinding non-stabilized SiNP in toluene with a stirred media mill results in μm-sized aggregates that precipitate rapidly. In order to achieve stable suspensions with regard to aggregation a suitable additive, added during the process of dispersion, is necessary. more detailed info, pls contact us at hwnano@xuzhounano.com. thanks
