Microsupercapacitors as miniaturized energy-storage components for on-chip electronics.
The push towards miniaturized electronics calls for the development of miniaturized energy-storage components that can enable sustained, autonomous operation of electronic devices for applications such as wearable gadgets and wireless sensor networks. Microsupercapacitors have been targeted as a viable route for this purpose, because, though storing less energy than microbatteries, they can be charged and discharged much more rapidly and have an almost unlimited lifetime. In this Review, we discuss the progress and the prospects of integrated miniaturized supercapacitors. In particular, we discuss their power performances and emphasize the need of a three-dimensional design to boost their energy-storage capacity. This is obtainable, for example, through self-supported nanostructured electrodes. We also critically evaluate the performance metrics currently used in the literature to characterize microsupercapacitors and offer general guidelines to benchmark performances towards prospective applications.
LAAS-CNRS, Université de Toulouse, CNRS, 31400 Toulouse, France.
Nana Amponsah
NA
Kyeremateng
Institut des Matériaux Jean Rouxel, CNRS UMR 6502, Université de Nantes, 2 rue de la Houssinière, BP32229, 44322 Nantes Cedex 3, France.|Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, France.
Thierry
T
Brousse
LAAS-CNRS, Université de Toulouse, CNRS, 31400 Toulouse, France.
David
D
Pech