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Self-assembled three-dimensional and compressible interdigitated thin-film supercapacitors and batteries

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Nyström, Gustav, Marais, Andrew, Karabulut, Erdem, Wågberg, Lars, Cui, Yi, Hamedi, Mahiar M.·2015·Nature Communications

Abstract

Traditional thin-film energy-storage devices consist of stacked layers of active films on two-dimensional substrates and do not exploit the third dimension. Fully three-dimensional thin-film devices would allow energy storage in bulk materials with arbitrary form factors and with mechanical properties unique to bulk materials such as compressibility. Here we show three-dimensional energy-storage devices based on layer-by-layer self-assembly of interdigitated thin films on the surface of an open-cell aerogel substrate. We demonstrate a reversibly compressible three-dimensional supercapacitor with carbon nanotube electrodes and a three-dimensional hybrid battery with a copper hexacyanoferrate ion intercalating cathode and a carbon nanotube anode. The three-dimensional supercapacitor shows stable operation over 400 cycles with a capacitance of 25 F g−1 and is fully functional even at compressions up to 75%. Our results demonstrate that layer-by-layer self-assembly inside aerogels is a rapid, precise and scalable route for building high-surface-area 3D thin-film devices.

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Metadata

Authors
Nyström, G., Marais, A., Karabulut, E., Wågberg, L., Cui, Y., & Hamedi, M. M.
Venue
Nature Communications
Published
2015-05-29
Volume
6
Issue
1
Pages
7259-7259
ISSN
2041-1723 (ISSN-L)
OpenAlex
W946063174
Cited by
280
References
1
FWCI
13.89
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Self-assembled three-dimensional and compressible interdigitated thin-film supercapacitors and batteries. https://app.cochat.ai/papers/10.1038/ncomms8259
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Nyström, G., Marais, A., Karabulut, E., Wågberg, L., Cui, Y., & Hamedi, M. M. (2015). Self-assembled three-dimensional and compressible interdigitated thin-film supercapacitors and batteries. Nature Communications. https://doi.org/10.1038/ncomms8259

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