Activated carbon–carbon nanotube composite porous film for supercapacitor applications

Taberna, Pierre‐Louis; Chevallier, Geoffroy; Simon, Patrice; Plee, D.; Aubert, Thierry

doi:10.1016/j.materresbull.2005.09.029

Cited by 101 publications

(47 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, CNTs, which can be mass produced by fluidized bed chemical vapor deposition (CVD) at low cost, have been used as conductive agents and/or the electrochemical active phase for advanced electrodes. Supercapacitors with AC/CNT nanocomposite electrodes have been shown to exhibit enhanced electrochemical performance compared with CNT-free carbon materials [30,[41][42][43][44], although the original CNTs were strongly entangled with each other, and acid purification was always required. As a result, those CNTs well-dispersed in the electrode were too short to form a self-supporting network.…”

mentioning

confidence: 99%

Binder-free activated carbon/carbon nanotube paper electrodes for use in supercapacitors

et al. 2011

View full text Add to dashboard Cite

Novel inexpensive, light, flexible, and even rollup or wearable devices are required for multi-functional portable electronics and developing new versatile and flexible electrode materials as alternatives to the materials used in contemporary batteries and supercapacitors is a key challenge. Here, binder-free activated carbon (AC)/carbon nanotube (CNT) paper electrodes for use in advanced supercapacitors have been fabricated based on low-cost, industrial-grade aligned CNTs. By a two-step shearing strategy, aligned CNTs were dispersed into individual long CNTs, and then 90 wt%-99 wt% of AC powder was incorporated into the CNT pulp and the AC/CNT paper electrode was fabricated by deposition on a filter. The specific capacity, rate performance, and power density of the AC/CNT paper electrode were better than the corresponding values for an AC/acetylene black electrode. The capacity reached a maximum value of 267.6 F/g with a CNT loading of 5 wt%, and the energy density and power density were 22.5 W·h/kg and 7.3 kW/kg at a high current density of 20 A/g. The AC/CNT paper electrode also showed a good cycle performance, with 97.5% of the original capacity retained after 5000 cycles at a scan rate of 200 mV/s. This method affords not only a promising paper-like nanocomposite for use in low-cost and flexible supercapacitors, but also a general way of fabricating multi-functional paper-like CNT-based nanocomposites for use in devices such as flexible lithium ion batteries and solar cells.

show abstract

mentioning

confidence: 99%

Binder-free activated carbon/carbon nanotube paper electrodes for use in supercapacitors

et al. 2011

View full text Add to dashboard Cite

show abstract

“…Although the catalyst amount after synthesis has been decreased year after year, the toxicity is still questionable for industrial applications. However, studies have shown that such materials can be successfully used as conductive additive in electrodes [77,78]. This could be the case if the price is competitive with low-cost carbon black.…”

Section: Current Collector Working In Aqueous Mediummentioning

confidence: 99%

Manufacturing of Industrial Supercapacitors

Azaïs¹

2013

Supercapacitors

View full text Add to dashboard Cite

“…To further improve the performance of AC-based SCs, certain amounts of conductive additives have to be added to the AC electrodes so as to enhance their electrical conductivity to fully realize their power performance and maximize their charge storage capacity [4,20]. The most commonly used conductive additive is carbon black (CB) for its excellent electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

“…Carbon nanotubes have shown an outstanding electrical conductivity that enables the electrodes to achieve higher power density. However, caution was advised about carbon nanotube by Simon et al [14,15,20] after some systematically studies of its influence on the electrochemical performance of carbon/carbon SCs. They concluded that addition of carbon nanotube leads to both a lower specific capacitance and smaller energy density.…”

Section: Introductionmentioning

confidence: 99%

Enhanced performance of carbon/carbon supercapacitors upon graphene addition

Zhang

Lum

Pan

2017

Nanotechnol. Environ. Eng.

View full text Add to dashboard Cite

Graphene has great potential for application in capacitive energy storage devices. In this study, we have investigated the effects of employing reduced graphene oxide (rGO) either as an additional supplement or as a total replacement of carbon black, the current conductive additive used in commercial carbon/carbon supercapacitors. We also examined the impact of incorporating rGO before and during the slurry preparation. Some electrochemical and morphological studies were conducted to compare the rGO and carbon black in performance enhancement for conventional activated carbon-based electrodes. Our results have demonstrated the benefits of incorporating graphene into the current carbon/carbon supercapacitors.

show abstract

Activated carbon–carbon nanotube composite porous film for supercapacitor applications

Cited by 101 publications

References 18 publications

Binder-free activated carbon/carbon nanotube paper electrodes for use in supercapacitors

Binder-free activated carbon/carbon nanotube paper electrodes for use in supercapacitors

Manufacturing of Industrial Supercapacitors

Enhanced performance of carbon/carbon supercapacitors upon graphene addition

Contact Info

Product

Resources

About