Elastomeric and Dynamic MnO2/CNT Core-Shell Structure Coiled Yarn Supercapacitor

Changsoon Choi; Hyeon Jun Sim; Geoffrey M. Spinks; Xavier Lepró; Ray H. Baughman; Seon Jeong Kim

doi:10.1002/aenm.201502119

Elastomeric and Dynamic MnO₂/CNT Core-Shell Structure Coiled Yarn Supercapacitor

Changsoon Choi, Hyeon Jun Sim, Geoffrey M. Spinks, Xavier Lepró, Ray H. Baughman, Seon Jeong Kim

Department of Energy and Materials Engineering

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

211 Scopus citations

Abstract

Reversibly deformable and highly performing solid-state yarn supercapacitors are obtained using MnO₂-deposited microcoiled yarn electrodes. The core(CNT)-shell(MnO₂)-structured coiled electrodes achieve high stretchability (37.5%) without the help of elastomeric substrates, minimizing the size of the supercapacitors. Therefore, high specific capacitances of 34.6 F cm^-3, 61.25 mF cm^-2, and 2.72 mF cm^-1 are achieved for coiled supercapacitors without impairing mechanical stretchability or electrochemical cyclability.

Original language	English
Article number	1502119
Journal	Advanced Energy Materials
Volume	6
Issue number	5
DOIs	https://doi.org/10.1002/aenm.201502119
State	Published - 9 Mar 2016

Keywords

carbon nanotubes
coils
electrodes
stretchable materials
supercapacitors

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1002/aenm.201502119

Cite this

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title = "Elastomeric and Dynamic MnO2/CNT Core-Shell Structure Coiled Yarn Supercapacitor",

abstract = "Reversibly deformable and highly performing solid-state yarn supercapacitors are obtained using MnO2-deposited microcoiled yarn electrodes. The core(CNT)-shell(MnO2)-structured coiled electrodes achieve high stretchability (37.5%) without the help of elastomeric substrates, minimizing the size of the supercapacitors. Therefore, high specific capacitances of 34.6 F cm-3, 61.25 mF cm-2, and 2.72 mF cm-1 are achieved for coiled supercapacitors without impairing mechanical stretchability or electrochemical cyclability.",

keywords = "carbon nanotubes, coils, electrodes, stretchable materials, supercapacitors",

author = "Changsoon Choi and Sim, {Hyeon Jun} and Spinks, {Geoffrey M.} and Xavier Lepr{\'o} and Baughman, {Ray H.} and Kim, {Seon Jeong}",

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AU - Sim, Hyeon Jun

AU - Spinks, Geoffrey M.

AU - Lepró, Xavier

AU - Baughman, Ray H.

AU - Kim, Seon Jeong

PY - 2016/3/9

Y1 - 2016/3/9

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AB - Reversibly deformable and highly performing solid-state yarn supercapacitors are obtained using MnO2-deposited microcoiled yarn electrodes. The core(CNT)-shell(MnO2)-structured coiled electrodes achieve high stretchability (37.5%) without the help of elastomeric substrates, minimizing the size of the supercapacitors. Therefore, high specific capacitances of 34.6 F cm-3, 61.25 mF cm-2, and 2.72 mF cm-1 are achieved for coiled supercapacitors without impairing mechanical stretchability or electrochemical cyclability.

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KW - coils

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