Supercapacitors based on carbon foams

摘要: A high energy density capacitor incorporating a variety of carbon foam electrodes is described. The foams, derived from the pyrolysis resorcinol-formaldehyde and related polymers, are (0.1 g/cc-1.0 g/cc) electrically conductive have surface areas (400 m2/g-1000 m2/g). Capacitances on order several tens farad per gram achieved. preferred embodiment has two cells. In upper cell (10), solder-wettable layer (32) an adhesive metal (30) overlie electrode (22). An separator (40) lies between (22) (10) (26) (10). Solder-wettable (36) (34) (26). similar shown in lower (12), with formed thereon. (24) (12).