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Microsupercapacitors as miniaturized energy-storage components for on-chip electronics

Nature Nanotechnology volume 12, pages 7–15 (2017)Cite this article

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Abstract

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.

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Figure 1: Schematics of the configurations of microsupercapacitors.
Figure 2: Typical microfabrication processes for the realization of planar on-chip microsupercapacitors.
Figure 3: Schematic representation of an interdigitated microsupercapacitor with an internal 3D architecture.
Figure 4: Comparison of the performances of bulky and 2D thin-film microsupercapacitor electrodes reported over the past years.
Figure 5: Influence of the time constant τ on the power characteristics of microsupercapacitors.

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Authors and Affiliations

  1. LAAS-CNRS, Université de Toulouse, CNRS, Toulouse, 31400, France

    Nana Amponsah Kyeremateng & David Pech

  2. Institut des Matériaux Jean Rouxel, CNRS UMR 6502, Université de Nantes, 2 rue de la Houssinière, BP32229, Nantes Cedex 3, 44322, France

    Thierry Brousse

  3. Réseau sur le Stockage Electrochimique de l'Energie (RS2E), 3459, FR CNRS, France

    Thierry Brousse

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Kyeremateng, N., Brousse, T. & Pech, D. Microsupercapacitors as miniaturized energy-storage components for on-chip electronics. Nature Nanotech 12, 7–15 (2017). https://doi.org/10.1038/nnano.2016.196

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