Graphene Double-Layer Capacitor with ac Line-Filtering Performance

Miller, John R.; Outlaw, R. A.; Holloway, Brian C.

doi:10.1126/science.1194372

Cited by 1,272 publications

(1,196 citation statements)

References 13 publications

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“…Compared with other porous materials (ACs and graphene stacks), GNWs‐based supercapacitors show excellent capacitive behaviors even at relatively high frequencies. For example, a high frequency (120 Hz) alternating current (ac) line‐filtering can be realized with CNWs‐based supercapacitors due to ultrafast dynamic response 137. Later on, EDLC which can operate at kilohertz alternating current is also reported using VG nanosheets grown on nickel foam collectors 138…”

Section: Applications Of Graphene Grown By Pecvdmentioning

confidence: 99%

Controllable Synthesis of Graphene by Plasma‐Enhanced Chemical Vapor Deposition and Its Related Applications

et al. 2016

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Graphene and its derivatives hold a great promise for widespread applications such as field‐effect transistors, photovoltaic devices, supercapacitors, and sensors due to excellent properties as well as its atomically thin, transparent, and flexible structure. In order to realize the practical applications, graphene needs to be synthesized in a low‐cost, scalable, and controllable manner. Plasma‐enhanced chemical vapor deposition (PECVD) is a low‐temperature, controllable, and catalyst‐free synthesis method suitable for graphene growth and has recently received more attentions. This review summarizes recent advances in the PECVD growth of graphene on different substrates, discusses the growth mechanism and its related applications. Furthermore, the challenges and future development in this field are also discussed.

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Section: Applications Of Graphene Grown By Pecvdmentioning

confidence: 99%

Controllable Synthesis of Graphene by Plasma‐Enhanced Chemical Vapor Deposition and Its Related Applications

et al. 2016

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“…Graphene, a two-dimensional carbon sheet with monoatomic layer thickness, offers great potential for energy storage [11][12][13] . With its high theoretical surface area (2630 m 2 g À 1 ) and electrical conductivity, graphene could produce supercapacitors with ultrahigh power.…”

mentioning

confidence: 99%

“…With its high theoretical surface area (2630 m 2 g À 1 ) and electrical conductivity, graphene could produce supercapacitors with ultrahigh power. We 11 and others [13][14][15] have developed thin-film graphene supercapacitors that demonstrated high-power performance with superior frequency response. Although promising, the sandwich structure of these supercapacitors limits their integration into electronic circuits.…”

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confidence: 99%

Scalable fabrication of high-power graphene micro-supercapacitors for flexible and on-chip energy storage

2013

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The rapid development of miniaturized electronic devices has increased the demand for compact on-chip energy storage. Microscale supercapacitors have great potential to complement or replace batteries and electrolytic capacitors in a variety of applications. However, conventional micro-fabrication techniques have proven to be cumbersome in building cost-effective micro-devices, thus limiting their widespread application. Here we demonstrate a scalable fabrication of graphene micro-supercapacitors over large areas by direct laser writing on graphite oxide films using a standard LightScribe DVD burner. More than 100 micro-supercapacitors can be produced on a single disc in 30 min or less. The devices are built on flexible substrates for flexible electronics and on-chip uses that can be integrated with MEMS or CMOS in a single chip. Remarkably, miniaturizing the devices to the microscale results in enhanced charge-storage capacity and rate capability. These microsupercapacitors demonstrate a power density of B200 W cm À 3 , which is among the highest values achieved for any supercapacitor.

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“…The capacitance of this SWNT solid EDLC was around 80 F g −1 . B. C. Holloway' group76 demonstrated efficient filtering of 120‐Hertz current with EDLCs with electrodes made from vertically oriented graphene nanosheets grown directly on metal current collectors ( Figure 5 a,b). Graphene nanosheets have a preponderance of exposed edge planes that greatly increases charge storage.…”

Section: Symmetric Electrodes In Different Energy‐storage Systemsmentioning

confidence: 99%

“…Reproduced with permission 76. Copyright 2010, Science; c–f) Schematic of the fabrication of a micro‐supercapacitor integrated onto a silicon chip based on the bulk carbide‐derived carbon (CDC) film process.…”

Section: Symmetric Electrodes In Different Energy‐storage Systemsmentioning

confidence: 99%

Symmetric Electrodes for Electrochemical Energy‐Storage Devices

et al. 2016

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Increasing environmental problems and energy challenges have so far attracted urgent demand for developing green and efficient energy‐storage systems. Among various energy‐storage technologies, sodium‐ion batteries (SIBs), electrochemical capacitors (ECs) and especially the already commercialized lithium‐ion batteries (LIBs) are playing very important roles in the portable electronic devices or the next‐generation electric vehicles. Therefore, the research for finding new electrode materials with reduced cost, improved safety, and high‐energy density in these energy storage systems has been an important way to satisfy the ever‐growing demands. Symmetric electrodes have recently become a research focus because they employ the same active materials as both the cathode and anode in the same energy‐storage system, leading to the reduced manufacturing cost and simplified fabrication process. Most importantly, this feature also endows the symmetric energy‐storage system with improved safety, longer lifetime, and ability of charging in both directions. In this Progress Report, we provide the comprehensive summary and comment on different symmetric electrodes and focus on the research about the applications of symmetric electrodes in different energy‐storage systems, such as the above mentioned SIBs, ECs and LIBs. Further considerations on the possibility of mass production have also been presented.

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Graphene Double-Layer Capacitor with ac Line-Filtering Performance

Cited by 1,272 publications

References 13 publications

Controllable Synthesis of Graphene by Plasma‐Enhanced Chemical Vapor Deposition and Its Related Applications

Controllable Synthesis of Graphene by Plasma‐Enhanced Chemical Vapor Deposition and Its Related Applications

Scalable fabrication of high-power graphene micro-supercapacitors for flexible and on-chip energy storage

Symmetric Electrodes for Electrochemical Energy‐Storage Devices

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