The nano revolution also needs electricity, very clear. A research group of scientists from Harvard and the University of Illinois may now have found the solution: they have managed to print a 3D printer with batteries that are smaller than a grain of sand. The team used a conventional extruder 3D printer with a mouth of one millimeter to pour two different lithium oxide pastes in the form of comb, so that thereby arise anode and cathode. Equipped with an electrolyte thus creating a battery that is thinner than a hair, but offers a performance that is comparable with commercial batteries in terms of charging and discharging cycles and energy density.
