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Electric double layer capacitors prepared with polyvinyl alcohol and multi-walled carbon nanotubes
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 03, 2018 by SAE International in United States
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Portable electronics, wearables, electric vehicles and solar cells are sectors in increasingly development which include innovation and miniaturization of the devices. In this scenario, the development of smaller and lightweight energy storage devices, which store more energy, is required. Besides, it is desirable for these devices to be environmentally friendly to minimize pollution. In an attempt to meet these requirements, this work purposes the development and the characterization of nanofibers-based electrode composed of Polyvinyl alcohol (PVA) and multi-walled carbon nanotubes (MWCNT) for electric double layer capacitors (ELCDs) devices with aqueous electrolyte. This composite has been prepared by electrospinning technique and consolidate an electrical conductive and high-surface material electrode. After that, the PVA/MWCNT electrode was assembled in coin cell device with Sodium Sulfate (Na2SO4) electrolyte for electrochemical characterization. The characterization results showed that EDLCs devices present specific capacitance of ∼4.8 Fg-1, energy density of ∼0.1 Wh kg-1, power density of ∼600W kg-, fast charge transfer at electrode/electrolyte interface and high lifetime All these results encourage further development on PVA/MWCNT materials as electrode for EDLCs and Li-Air batteries devices. This new generation of devices are opening niches of applications on multi billionaire markets from communication to transport.
- Carla Giselle Martins Real - Carbon Sci-Tech Labs, School of Electrical and Computer Engi
- Rafael Vicentini - Carbon Sci-Tech Labs, School of Electrical and Computer Engi
- Willian Gonçalves Nunes - Carbon Sci-Tech Labs, School of Electrical and Computer Engi
- Otávio Vilas Boas - Carbon Sci-Tech Labs, School of Electrical and Computer Engi
- Lenon Henrique Costa - Carbon Sci-Tech Labs, School of Electrical and Computer Engi
- Davi Marcelo Soares - Carbon Sci-Tech Labs, School of Electrical and Computer Engi
- Hudson Zanin - Carbon Sci-Tech Labs, School of Electrical and Computer Engi
CitationReal, C., Vicentini, R., Nunes, W., Boas, O. et al., "Electric double layer capacitors prepared with polyvinyl alcohol and multi-walled carbon nanotubes," SAE Technical Paper 2018-36-0313, 2018, https://doi.org/10.4271/2018-36-0313.
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