Pure graphene for industrial functions is often obtained from graphite. Typical manufacturing strategies have a really low yield of pure graphene, which must be separated from waste merchandise at nice expense. Nonetheless, due to a earlier analysis undertaking, the Empa researchers have an ace up their sleeve: They developed a course of with which high-quality graphene could be “exfoliated” from graphite each cost-effectively and effectively, and processed right into a gel-like printable ink.
This graphene ink affords a decisive benefit within the manufacturing of supercapacitor electrodes. By cleverly mixing two several types of graphene, the researchers can selectively affect the dimensions of the pores between the graphene layers. “If the pore measurement of the electrode is matched to the dimensions of the ions within the electrolyte, the power density of the supercapacitor will increase dramatically,” explains Azad. With activated carbon, controlling pore measurement is unattainable.
