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Title: Editable supercapacitors with customizable stretchability based on mechanically strengthened ultralong MnO2 nanowire composite
Authors: Lv, Zhisheng
Luo, Yifei
Tang, Yuxin
Wei, Jiaqi
Zhu, Zhiqiang
Zhou, Xinran
Li, Wenlong
Zeng, Yi
Zhang, Wei
Zhang, Yanyan
Qi, Dianpeng
Pan, Shaowu
Loh, Xian Jun
Chen, Xiaodong
Keywords: Engineering::Materials
Issue Date: 2018
Source: Lv, Z., Luo, Y., Tang, Y., Wei, J., Zhu, Z., Zhou, X., . . . Chen, X. (2018). Editable supercapacitors with customizable stretchability based on mechanically strengthened ultralong MnO2 nanowire composite. Advanced Materials, 30(2), 1704531-. doi:10.1002/adma.201704531
Journal: Advanced Materials
Abstract: Although some progress has been made on stretchable supercapacitors, traditional stretchable supercapacitors fabricated by predesigning structured electrodes for device assembling still lack the device-level editability and programmability. To adapt to wearable electronics with arbitrary configurations, it is highly desirable to develop editable supercapacitors that can be directly transferred into desirable shapes and stretchability. In this work, editable supercapacitors for customizable shapes and stretchability using electrodes based on mechanically strengthened ultralong MnO2 nanowire composites are developed. A supercapacitor edited with honeycomb-like structure shows a specific capacitance of 227.2 mF cm-2 and can be stretched up to 500% without degradation of electrochemical performance, which is superior to most of the state-of-the-art stretchable supercapacitors. In addition, it maintains nearly 98% of the initial capacitance after 10 000 stretch-and-release cycles under 400% tensile strain. As a representative of concept for system integration, the editable supercapacitors are integrated with a strain sensor, and the system exhibits a stable sensing performance even under arm swing. Being highly stretchable, easily programmable, as well as connectable in series and parallel, an editable supercapacitor with customizable stretchability is promising to produce stylish energy storage devices to power various portable, stretchable, and wearable devices.
ISSN: 0935-9648
DOI: 10.1002/adma.201704531
Rights: © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in Advanced Materials and is made available with permission of WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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