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Record-breaking 3D printed supercapacitor paves way for new energy storage devices

Scientists from the University of California Santa Cruz and the Lawrence Livermore National Laboratory (LLNL) have broken performance records using a 3D printed supercapacitor electrode. The electrodes reportedly achieved the highest areal capacitance—the electric charge stored per unit of surface area—of any supercapacitor ever. The research project, recently published in the journal Joule , consisted of 3D printing the electrodes out of a graphene aerogel, which were printed into a porous scaffold structure loaded with pseudocapacitive material. Supercapacitors are energy storage devices which offer certain advantages. For instance, they can be charged in seconds or minutes and can retain their storage capacity over tens of thousands of charge cycles. In terms of applications, supercapacitors are used in electric vehicles for regenerative braking systems. However, there are still some limitations to using supercapacitors, as they hold less energy than batteries and do not hold their charge for as long. Top […]

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