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STRONG AND CHEAP LITHIUM-ION BATTERY IN DEVELOPMENT

- Jun 14, 2018 -

Scientists in order to upgrade the performance of the conventional batteries have developed a new design that uses porous silicon nanoparticles in place of the traditional graphite anodes.


This new development which is based on a provisional patent and can be commercialized within three years; is due to the fact that these new batteries can have as much as 3 times the energy of conventional lithium-ion batteries and can be recharged within 10 minutes which is an excellent development and will enable a new generation of lithium-ion batteries.


This development was first based on silicon in battery anodes; as it’s a cheap material and packs a high capacity. But the problem with using silicon in anode design is that they are some tiny plates of material which break and become useless during the charge and discharging cycles.


The team has already experimented with silicon nanowires in small dimensions (about 100 nanometers in diameter). The material allowed the silicon to expand and contract while the surface area increases as well, all that without breaking. As result the lithium-ions diffuse in and out of the battery more quickly, which also increased the performance of the lithium-ion battery.


A mass production of the nanowires is very difficult, even though the results of the experience are good which led the scientists to consider using tiny silicon spheres available on the market and combine them with the porous materials as the nanowires, this solution can enable a big quantity production.


With this new development, they are expecting a life span of more than 2000 cycles. This could impact the usage of battery in the upcoming future.


Now, the best will be to find a high capacity cathode material which can pair well with the silicon anode design and could lead to a commercially available new design battery.