The capacity of a lithium-ion battery can be nearly doubled by using an anode made from tiny nanoparticles of silicon wrapped in several layers of graphene. Researchers from South Korea – including electronics giant Samsung – have found that the graphene coating boosts the electrical conductivity of the particles and stops them from being damaged as their volume expands when the battery is charged. The scientists describe their work as “a meaningful step” towards the development of commercial batteries with silicon anodes…..
http://nanotechweb.org/cws/article/tech/61797
