Graphenano and the University of Valencia report major milestone with first cell made without metals

Graphenano and the Institute of Molecular Science (ICMol) of the University of Valencia have developed a battery cell without current collectors or metal terminals, which uses graphene and carbon nanomaterials instead. The system enables the creation of safer, lighter and more efficient batteries for electric cars, aviation, stationary storage and more. Image The scientists have succeeded in removing the copper, aluminium or steel sheets, the materials generally used in conventional batteries to evacuate the electric current generated. Simultaneously, the metallic tabs (current terminals), usually made of nickel or other metals, which are responsible for transferring the energy from the inside to the outside of the battery, have been eliminated. The replacement of these metals by graphene and other carbon nanomaterials significantly reduces the weight and volume of the devices. Furthermore, the team reported that tests have ascertained that this replacement increases the energy density by 30-60% and eliminates the risk of explosion or fire accidents on contact with air.