Cotton textile enabled, all-solid-state flexible supercapacitors

Zan Gao; Ningning Song; Yunya Zhang; Xiaodong Li

doi:10.1039/c5ra00028a

Cotton textile enabled, all-solid-state flexible supercapacitors

Zan Gao, Ningning Song, Yunya Zhang, Xiaodong Li^*

^*Corresponding author for this work

University of Virginia School of Engineering and Applied Science

Research output: Contribution to journal › Article › peer-review

106 Citations (Scopus)

Abstract

A hierarchical NiCo₂O₄@NiCo₂O₄ core/shell nanostructure was grown on flexible cotton activated carbon textiles (ACTs) to fabricate NiCo₂O₄@NiCo₂O₄/ACT electrodes. After dipping with PVA/KOH polymer gel which served as both the solid state electrolyte and separator, the flexible NiCo₂O₄@NiCo₂O₄/ACT hybrid electrode exhibited an exceptional combination of electrochemical and mechanical properties in terms of specific capacitance (1929 F g^-1, based on the mass of NiCo₂O₄), energy density (83.6 Wh kg^-1), power density (8.4 kW kg^-1), cycling stability, and mechanical robustness (the tensile strength is 6.4 times higher than that of pure ACT). The outstanding electrochemical performance is ascribed to the unique core/shell nanostructure with high active-surface area, morphological stability, and short ion transport path. Such hierarchical core/shell nanostructure of the same material on a cotton-enabled flexible substrate should inspire us to develop flexible solid-state textile energy storage devices for future wearable electronics.

Original language	English
Pages (from-to)	15438-15447
Number of pages	10
Journal	RSC Advances
Volume	5
Issue number	20
DOIs	https://doi.org/10.1039/c5ra00028a
Publication status	Published - 2015
Externally published	Yes

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title = "Cotton textile enabled, all-solid-state flexible supercapacitors",

abstract = "A hierarchical NiCo2O4@NiCo2O4 core/shell nanostructure was grown on flexible cotton activated carbon textiles (ACTs) to fabricate NiCo2O4@NiCo2O4/ACT electrodes. After dipping with PVA/KOH polymer gel which served as both the solid state electrolyte and separator, the flexible NiCo2O4@NiCo2O4/ACT hybrid electrode exhibited an exceptional combination of electrochemical and mechanical properties in terms of specific capacitance (1929 F g-1, based on the mass of NiCo2O4), energy density (83.6 Wh kg-1), power density (8.4 kW kg-1), cycling stability, and mechanical robustness (the tensile strength is 6.4 times higher than that of pure ACT). The outstanding electrochemical performance is ascribed to the unique core/shell nanostructure with high active-surface area, morphological stability, and short ion transport path. Such hierarchical core/shell nanostructure of the same material on a cotton-enabled flexible substrate should inspire us to develop flexible solid-state textile energy storage devices for future wearable electronics.",

author = "Zan Gao and Ningning Song and Yunya Zhang and Xiaodong Li",

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T1 - Cotton textile enabled, all-solid-state flexible supercapacitors

AU - Gao, Zan

AU - Song, Ningning

AU - Zhang, Yunya

AU - Li, Xiaodong

N1 - Publisher Copyright: © The Royal Society of Chemistry 2015.

PY - 2015

Y1 - 2015

N2 - A hierarchical NiCo2O4@NiCo2O4 core/shell nanostructure was grown on flexible cotton activated carbon textiles (ACTs) to fabricate NiCo2O4@NiCo2O4/ACT electrodes. After dipping with PVA/KOH polymer gel which served as both the solid state electrolyte and separator, the flexible NiCo2O4@NiCo2O4/ACT hybrid electrode exhibited an exceptional combination of electrochemical and mechanical properties in terms of specific capacitance (1929 F g-1, based on the mass of NiCo2O4), energy density (83.6 Wh kg-1), power density (8.4 kW kg-1), cycling stability, and mechanical robustness (the tensile strength is 6.4 times higher than that of pure ACT). The outstanding electrochemical performance is ascribed to the unique core/shell nanostructure with high active-surface area, morphological stability, and short ion transport path. Such hierarchical core/shell nanostructure of the same material on a cotton-enabled flexible substrate should inspire us to develop flexible solid-state textile energy storage devices for future wearable electronics.

AB - A hierarchical NiCo2O4@NiCo2O4 core/shell nanostructure was grown on flexible cotton activated carbon textiles (ACTs) to fabricate NiCo2O4@NiCo2O4/ACT electrodes. After dipping with PVA/KOH polymer gel which served as both the solid state electrolyte and separator, the flexible NiCo2O4@NiCo2O4/ACT hybrid electrode exhibited an exceptional combination of electrochemical and mechanical properties in terms of specific capacitance (1929 F g-1, based on the mass of NiCo2O4), energy density (83.6 Wh kg-1), power density (8.4 kW kg-1), cycling stability, and mechanical robustness (the tensile strength is 6.4 times higher than that of pure ACT). The outstanding electrochemical performance is ascribed to the unique core/shell nanostructure with high active-surface area, morphological stability, and short ion transport path. Such hierarchical core/shell nanostructure of the same material on a cotton-enabled flexible substrate should inspire us to develop flexible solid-state textile energy storage devices for future wearable electronics.

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DO - 10.1039/c5ra00028a

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SP - 15438

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JO - RSC Advances

JF - RSC Advances

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ER -

Cotton textile enabled, all-solid-state flexible supercapacitors

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