Highly Concentrated, Ultrathin Nickel Hydroxide Nanosheet Ink for Wearable Energy Storage Devices

© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 29(2017), 40 vom: 01. Okt.
1. Verfasser: Shi, Peipei (VerfasserIn)
Weitere Verfasser: Chen, Rong, Hua, Li, Li, Li, Chen, Ruyi, Gong, Yujiao, Yu, Chenyang, Zhou, Jinyuan, Liu, Bin, Sun, Gengzhi, Huang, Wei
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article nickel hydroxide printing supercapacitors ultrathin nanosheets wearable devices
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520 |a Solution-based techniques are considered as a promising strategy for scalable fabrication of flexible electronics owing to their low-cost and high processing speed. The key to the success of these techniques is dominated by the ink formulation of active nanomaterials. This work successfully prepares a highly concentrated two dimensional (2D) crystal ink comprised of ultrathin nickel hydroxide (Ni(OH)2 ) nanosheets with an average lateral size of 34 nm. The maximum concentration of Ni(OH)2 nanosheets in water without adding any additives reaches as high as 50 mg mL-1 , which can be printed on arbitrary substrates to form Ni(OH)2 thin films. As a proof-of-concept application, Ni(OH)2 nanosheet ink is coated on commercialized carbon fiber yarns to fabricate wearable energy storage devices. The thus-fabricated hybrid supercapacitors exhibit excellent flexibility with a capacitance retention of 96% after 5000 bending-unbending cycles, and good weavability with a high volumetric capacitance of 36.3 F cm-3 at a current density of 0.4 A cm-3 , and an energy density of 11.3 mWh cm-3 at a power density of 0.3 W cm-3 . As a demonstration of practical application, a red light emitting diode can be lighted up by three hybrid devices connected in series 
650 4 |a Journal Article 
650 4 |a nickel hydroxide 
650 4 |a printing 
650 4 |a supercapacitors 
650 4 |a ultrathin nanosheets 
650 4 |a wearable devices 
700 1 |a Chen, Rong  |e verfasserin  |4 aut 
700 1 |a Hua, Li  |e verfasserin  |4 aut 
700 1 |a Li, Li  |e verfasserin  |4 aut 
700 1 |a Chen, Ruyi  |e verfasserin  |4 aut 
700 1 |a Gong, Yujiao  |e verfasserin  |4 aut 
700 1 |a Yu, Chenyang  |e verfasserin  |4 aut 
700 1 |a Zhou, Jinyuan  |e verfasserin  |4 aut 
700 1 |a Liu, Bin  |e verfasserin  |4 aut 
700 1 |a Sun, Gengzhi  |e verfasserin  |4 aut 
700 1 |a Huang, Wei  |e verfasserin  |4 aut 
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773 1 8 |g volume:29  |g year:2017  |g number:40  |g day:01  |g month:10 
856 4 0 |u http://dx.doi.org/10.1002/adma.201703455  |3 Volltext 
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