Freestanding transparent metallic network based ultrathin, foldable and designable supercapacitors

Liu, Yanhua; Xu, Jianlong; Gao, Xu; Sun, Yang; Lv, Jingjing; Shen, Shanpu; Chen, Linsen; Wang, Sui‐Dong

doi:10.1039/c7ee02390a

Cited by 140 publications

(87 citation statements)

References 52 publications

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“…This flexibility test clearly reveals that the flexible ASC device with solid and liquid electrolyte rendered excellent flexibility and mechanical stability, which further confirms that our flexible ASC with solid/liquid electrolyte is working well under highly flexible circumstances (Figure S41, Supporting Information). Therefore, NiCo 2 N@NG//NiFeN@NG ASC with solid/liquid electrolyte is promising for flexible electronics in modern energy storage systems in the scientific world …”

Section: Resultsmentioning

confidence: 99%

Flexible Solid‐State Asymmetric Supercapacitors Based on Nitrogen‐Doped Graphene Encapsulated Ternary Metal‐Nitrides with Ultralong Cycle Life

Balamurugan

Nguyen

Aravindan

et al. 2018

Adv Funct Materials

239

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To meet a fast-emerging demand, flexible energy storage applications have a great interest in the development of highly flexible hierarchical nanoarchitectures. Metal nitrides have recently been paid a significant interest as a promising electrode material for supercapacitors (SCs) owing to their high electrical conductivity, excellent redox properties, and outstanding mechanical strength. However, poor electrochemical stability seriously limits the commercialization possibilities. Herein, a novel strategy is presented for the synthesis of nitrogen-doped graphene encapsulated with ultrasmall nickelcobalt nitride (NiCo 2 N) and nickel-iron nitride (NiFeN) core-shell architectures that are explored as advanced electrodes for flexible solid-state SC. The flexible NiCo 2 N@NG//NiFeN@NG asymmetric SC delivers an ultrahigh energy density of ≈94.93 Wh kg −1 at 0.79 kW kg −1 , exceptional power density (≈74.67 Wh kg −1 at 39.53 kW kg −1 ), and ultralong cycle life (≈5.07% drop in initial capacity after 25 000 cycles). These results promote the core-shell hybrids that can be served as advanced supercapacitor materials for flexible energy storage applications.

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Section: Resultsmentioning

confidence: 99%

Flexible Solid‐State Asymmetric Supercapacitors Based on Nitrogen‐Doped Graphene Encapsulated Ternary Metal‐Nitrides with Ultralong Cycle Life

Balamurugan

Nguyen

Aravindan

et al. 2018

Adv Funct Materials

239

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“…Specifically, replacing the conventional Al foil current collector (15 µm) with a AgNP current collector would give rise to a 78% reduction in the mass, while replacing a conventional Cu foil current collector (9 µm) would result in an 89% reduction in the mass. More interestingly, the freestanding AgNP is very thin, with a thickness of ≈2 µm (Figure e,f; Figure S4a, Supporting Information), constituting the thinnest metallic film yet reported for freestanding metallic‐based membranes . Obviously, by using a thinner current collector such as the AgNP, it would be possible to decrease the thickness of the cell and hence increase the volumetric capacity of the battery.…”

Section: Resultsmentioning

confidence: 93%

Lightweight, Thin, and Flexible Silver Nanopaper Electrodes for High‐Capacity Dendrite‐Free Sodium Metal Anodes

Wang

Zhang

Zhou

et al. 2018

Adv Funct Materials

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Owing to its resource-abundant and favorable theoretical capacity, sodium metal is regarded as a promising anode material for sodium metal batteries. However, uncontrolled Na plating/stripping, including Na dendrite growth during cycling, has hindered its practical application. Herein, a sodiophilic, thin, and flexible silver nanopaper (AgNP) is designed based on interpenetrated nanocellulose and silver nanowires and is used as a dendrite-free Na metal electrode. Due to a network of highly conducting silver nanowire (0.6 Ω sq −1 , 8200 S cm −1 ), the sodiophilic nature of silver, and the reduced internal strain within the flexible AgNP, a compact Na metal layer can be uniformly deposited on and reversibly stripped from the AgNP electrode without any observations of Na dendrites during cycling at 1 mA cm −2 for 800 h. As the AgNP electrode is only 2 µm thick, with a low mass loading of 0.88 mg cm −2 , the AgNP-Na anode deposited with a Na deposition charge of 6 mAh cm −2 exhibits a capacity of 995 mAh g −1 AgNP-Na , approaching that of a Na metal anode (1166 mAh g −1 Na ). The present approach provides new possibilities for the development of lightweight and stable metal batteries.

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Section: Engineering Nanomaterials Into Specific Nanostructures For Tmentioning

confidence: 99%

“…Liu et al. used this method to prepare Ni mesh, then electrodeposited MnO 2 on it as electrodes for transparent supercapacitors . As shown in Figure f and 5 g, simply, they used photoresist as coating masks on substrates, and then used laser direct writing techniques to etch specific patterns on the masks.…”

Section: Engineering Nanomaterials Into Specific Nanostructures For Tmentioning

confidence: 99%

Nano‐Engineered Materials for Transparent Supercapacitors

Wang

Liu

2019

ChemNanoMat

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Transparent supercapacitors are interesting for energy storage and management in future transparent electronics and have become an intriguing research topic at the interface of materials science, energy and electronics research. This minireview presents the recent progress in transparent supercapacitors, particularly the use of nano-engineered materials to construct transparent electrodes. Focusing on the two key features of transparency and capacitance, we analyze the influences of nanostructures on the electrode and device performances, and present the outlook the future perspectives for transparent supercapacitors.[a] J.

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Freestanding transparent metallic network based ultrathin, foldable and designable supercapacitors

Abstract: A freestanding transparent metallic network electrode is designed, fabricated and integrated for ultrathin, foldable and designable supercapacitor devices.

Cited by 140 publications

References 52 publications

Flexible Solid‐State Asymmetric Supercapacitors Based on Nitrogen‐Doped Graphene Encapsulated Ternary Metal‐Nitrides with Ultralong Cycle Life

Flexible Solid‐State Asymmetric Supercapacitors Based on Nitrogen‐Doped Graphene Encapsulated Ternary Metal‐Nitrides with Ultralong Cycle Life

Lightweight, Thin, and Flexible Silver Nanopaper Electrodes for High‐Capacity Dendrite‐Free Sodium Metal Anodes

Nano‐Engineered Materials for Transparent Supercapacitors

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