Effect of conductive additives to gel electrolytes on activated carbon-based supercapacitors
| dc.contributor.author | Barzegar, Farshad | |
| dc.contributor.author | Dangbegnon, Julien K. | |
| dc.contributor.author | Bello, Abdulhakeem | |
| dc.contributor.author | Momodu, Damilola Y. | |
| dc.contributor.author | Johnson, Alan T. Charlie | |
| dc.contributor.author | Manyala, Ncholu I. | |
| dc.contributor.email | ncholu.manyala@up.ac.za | en_ZA |
| dc.date.accessioned | 2015-11-11T10:04:38Z | |
| dc.date.available | 2015-11-11T10:04:38Z | |
| dc.date.issued | 2015-09-24 | |
| dc.description.abstract | This article is focused on polymer based gel electrolyte due to the fact that polymers are cheap and can be used to achieve extended potential window for improved energy density of the supercapacitor devices when compared to aqueous electrolytes. Electrochemical characterization of a symmetric supercapacitor devices based on activated carbon in different polyvinyl alcohol (PVA) based gel electrolyteswas carried out. The device exhibited a maximum energy density of 24 Wh kg−1 when carbon black was added to the gel electrolyte as conductive additive. The good energy densitywas correlated with the improved conductivity of the electrolyte medium which is favorable for fast ion transport in this relatively viscous environment. Most importantly, the device remained stable with no capacitance lost after 10,000 cycles. | en_ZA |
| dc.description.librarian | am2015 | en_ZA |
| dc.description.sponsorship | The South African Research Chair Initiative (SARChi) in Carbon Technology and Materials of the Department of Science and Technology (DST) and the National Research Foundation (NRF). F. Barzegar and D. Y. Momodu acknowledge financial support from the University of Pretoria and the NRF for their PhD bursaries, while A. Bello acknowledges NRF through SARChI in Carbon Technology and Materials and University of Pretoria for his Postdoctoral financial support. A.T. C. Johnson acknowledges support from the Laboratory for Research on the Structure of Matter, National Science Foundation MRSEC, grant number DMR-1120901. | en_ZA |
| dc.description.uri | http://scitation.aip.orgcontent/aip/journal/adva | en_ZA |
| dc.identifier.citation | Barzegar, F, Dangbegnon, JK, Bello, A, Momodu, DY, Johnson, ATC & Manyala, N 2015, 'Effect of conductive additives to gel electrolytes on activated carbon-based supercapacitors', AIP Advances, vol. 5, no. 9, pp. 097171-1-9. | en_ZA |
| dc.identifier.issn | 2158-3226 | |
| dc.identifier.other | 10.1063/1.4931956 | |
| dc.identifier.uri | http://hdl.handle.net/2263/50417 | |
| dc.language.iso | en | en_ZA |
| dc.publisher | American Institute of Physics | en_ZA |
| dc.rights | © 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. | en_ZA |
| dc.subject | Polymer | en_ZA |
| dc.subject | Supercapacitor devices | en_ZA |
| dc.subject | Polyvinyl alcohol (PVA) | en_ZA |
| dc.subject | Gel electrolyte | en_ZA |
| dc.subject | Energy density | en_ZA |
| dc.title | Effect of conductive additives to gel electrolytes on activated carbon-based supercapacitors | en_ZA |
| dc.type | Article | en_ZA |