Electrochemical Double-Layer Capacitors Using Carbon Nanotube Electrode Structures

Signorelli, Riccardo; Ku, Daniel C.; Kassakian, J.G.; Schindall, Joel

doi:10.1109/jproc.2009.2030240

Cited by 128 publications

(70 citation statements)

References 9 publications

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“…Electrochemical double-layer capacitors (EDLCs) are known to operate in a variety of aqueous and organic electrolytes, and can have extremely high specific power and cycle life 20 . However, the cycling of an EDLC electrode proceeds by the physical formation and dispersal of a double layer of charge at the electrode surface with no faradaic reaction involving the bulk material 21 .…”

Section: Resultsmentioning

confidence: 99%

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

et al. 2012

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new types of energy storage are needed in conjunction with the deployment of solar, wind and other volatile renewable energy sources and their integration with the electric grid. no existing energy storage technology can economically provide the power, cycle life and energy efficiency needed to respond to the costly short-term transients that arise from renewables and other aspects of grid operation. Here we demonstrate a new type of safe, fast, inexpensive, long-life aqueous electrolyte battery, which relies on the insertion of potassium ions into a copper hexacyanoferrate cathode and a novel activated carbon/polypyrrole hybrid anode. The cathode reacts rapidly with very little hysteresis. The hybrid anode uses an electrochemically active additive to tune its potential. This high-rate, high-efficiency cell has a 95% round-trip energy efficiency when cycled at a 5C rate, and a 79% energy efficiency at 50C. It also has zero-capacity loss after 1,000 deep-discharge cycles.

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Section: Resultsmentioning

confidence: 99%

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

et al. 2012

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“…Nano-supercapacitors can also be fabricated with DWNTs [164][165][166]. Namely, Cooper et al [166] used DNA-dispersed DWNTs to fabricate electrodes for supercapacitors.…”

Section: Applications Involving Dwnts and Twntsmentioning

confidence: 99%

A Review of Double-Walled and Triple-Walled Carbon Nanotube Synthesis and Applications

Fujisawa

Kim

et al. 2016

Applied Sciences

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Double-and triple-walled carbon nanotubes (DWNTs and TWNTs) consist of coaxially-nested two and three single-walled carbon nanotubes (SWNTs). They act as the geometrical bridge between SWNTs and multi-walled carbon nanotubes (MWNTs), providing an ideal model for studying the coupling interactions between different shells in MWNTs. Within this context, this article comprehensively reviews various synthetic routes of DWNTs' and TWNTs' production, such as arc discharge, catalytic chemical vapor deposition and thermal annealing of pea pods (i.e., SWNTs encapsulating fullerenes). Their structural features, as well as promising applications and future perspectives are also discussed.

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“…This is a physical phenomenon rather than a chemical reaction and is highly reversible. The metallic plates are coated with a porous substance such as activated charcoal, and immersed in an electrolyte, resulting in a larger area to store a higher charge [14]. The electrolyte-soaked plates are separated by a thin insulator.…”

Section: Introductionmentioning

confidence: 99%

Performance of Commercially Available Supercapacitors

2017

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High energy density storage device exhibiting a reliable lifecycle is needed in the 21st century. Hence, energy storage research is critical for reducing energy consumption. Supercapacitors exhibit such characteristics via interfacial ion electrosorption and fast redox reactions. They are a feasible solution for transportation applications, among others, due to their superb characteristics. In this paper, we provide a background on supercapacitors, review public data on commercially available supercapacitors for performance characteristics, and finally summarize their performance in terms of energy density, equivalent series resistance, and device time consistency.

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Electrochemical Double-Layer Capacitors Using Carbon Nanotube Electrode Structures

Abstract: These capacitors can store large amounts of energy and deliver very high peak power; they are used in electric vehicles and may have applications in linear motor drives.

Cited by 128 publications

References 9 publications

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

A Review of Double-Walled and Triple-Walled Carbon Nanotube Synthesis and Applications

Performance of Commercially Available Supercapacitors

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