NDLI: Scalable fabrication of MnO<sub>2</sub> nanostructure deposited on free-standing Ni nanocone arrays for ultrathin, flexible, high-performance micro-supercapacitor

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Scalable fabrication of MnO₂ nanostructure deposited on free-standing Ni nanocone arrays for ultrathin, flexible, high-performance micro-supercapacitor

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Rational design of a metal–organic framework host for sulfur storage in fast, long-cycle Li–S batteries

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Energy & Environmental Science Vol - 7 Issue - 7

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Energy & Environmental Science Vol - 7 Issue - 3

Energy & Environmental Science Vol - 7 Issue - 2

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Scalable fabrication of MnO₂ nanostructure deposited on free-standing Ni nanocone arrays for ultrathin, flexible, high-performance micro-supercapacitor

Content Provider	Royal Society of Chemistry (RSC)
Author	Yang, Cheng Li, Baohua Su, Zijin Liu, Jingping Xie, Binghe Zhang, Zhexu Lin, Ziyin Wong, Ching Ping Kang, Feiyu
Copyright Year	2014
Abstract	Ultrathin and flexible power sources are essential for the rapid development of portable and wearable electronics. The deployment of 3-dimensional (3-D) nanostructured materials on the current collectors has recently emerged as a promising strategy for preparing high-performance supercapacitors. Additionally, it is equally important to develop an appropriate device packaging technique, so as to maximize the improvement of the electrode performance characteristic. Herein, we develop a simple and efficient method for fabricating ultrathin and flexible supercapacitor electrodes containing a manganese dioxide (MnO2) nanostructure deposited onto 3-D nickel nanocone arrays (NCAs). The MnO2-NCAs electrode was prepared by an electro-deposition technology, which involves the cathode deposition of NCAs on a titanium carrier film as the current collector and subsequent anode deposited from the MnO2 nanostructures as the active material. The electrode can be peeled off from the carrier film and thus the resulting freestanding electrode is as thin as 3 μm, and exhibits outstanding mechanical robustness, high specific capacitance (632 F g−1), enhanced energy density (52.2 W h kg−1) and excellent cycle performance (95.3% retention after 20 000 cycles). We further fabricated ultrathin supercapacitors with a total thickness of ∼27 μm, which achieved unprecedented features including superior energy density by volume (2.7 × 10−3 W h cm−3), superior flexibility and reliability. We demonstrated the application of the MnO2-NCAs supercapacitor as an ultrathin power source such as driving a LED indicator. This technology may find vast applications in future wearable electronics.
Starting Page	2652
Ending Page	2659
Page Count	8
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	7
Issue Number	8
Journal	Energy & Environmental Science
DOI	10.1039/c4ee01195c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Wearable computer Electrode Supercapacitor Manganese dioxide Nanostructure Nickel Plating Cathode Titanium Anode Micrometer Capacitance Energy density
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Microfluidic etching for fabrication of flexible and all-solid-state micro supercapacitor based on MnO₂ nanoparticles

Ultrathin porous hierarchically textured NiCo₂O₄–graphene oxide flexible nanosheets for high-performance supercapacitors

Preparation of Flexible Substrate Electrode for Supercapacitor With High-Performance MnO2 Stalagmite Nanorod Arrays

A reduced graphene oxide/mixed-valence manganese oxide composite electrode for tailorable and surface mountable supercapacitors with high capacitance and super-long life

Carbon-Supported Manganese Dioxide as Electrode Material For Asymmetric Electrochemical Capacitors Ilona Acznik

Highly conductive and flexible molybdenum oxide nanopaper for high volumetric supercapacitor electrode

Hierarchical NiCo₂O₄ nanosheets/nitrogen doped graphene/carbon nanotube film with ultrahigh capacitance and long cycle stability as a flexible binder-free electrode for supercapacitors

Fe₂O₃-decorated millimeter-long vertically aligned carbon nanotube arrays as advanced anode materials for asymmetric supercapacitors with high energy and power densities

A phytic acid etched Ni/Fe nanostructure based flexible network as a high-performance wearable hybrid energy storage device

Scalable fabrication of MnO₂ nanostructure deposited on free-standing Ni nanocone arrays for ultrathin, flexible, high-performance micro-supercapacitor

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Scalable fabrication of MnO₂ nanostructure deposited on free-standing Ni nanocone arrays for ultrathin, flexible, high-performance micro-supercapacitor