Low-cost supercapacitor based on colloidal graphite

Detalhes bibliográficos
Autor(a) principal: Klem,Maykel dos Santos
Data de Publicação: 2021
Outros Autores: Nogueira,Gabriel Leonardo, Alves,Neri
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700219
Resumo: Abstract Here we report the production and characterization of a low-cost supercapacitor with electrodes based on colloidal graphite. We characterized the as-prepared device in terms of cyclic voltammetry (CV), Galvanostatic charge/discharge (GCD), and impedance spectroscopy. The supercapacitor exhibited good electrochemical performance with a high capacitance of 22 F g-1 for a discharge current of 2 mA. Long-term cyclability tests show that the device can keep about 85% of its capacitance after 500 cycles, even without encapsulation. We found power and energy densities of 110 W kg-1 and 3 Wh kg-1, respectively. All the experimental results indicate that the colloidal graphite Aquadag® is a promising material for application in supercapacitors.
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spelling Low-cost supercapacitor based on colloidal graphiteColloidal GraphiteAquadagSupercapacitorEnergy StorageAbstract Here we report the production and characterization of a low-cost supercapacitor with electrodes based on colloidal graphite. We characterized the as-prepared device in terms of cyclic voltammetry (CV), Galvanostatic charge/discharge (GCD), and impedance spectroscopy. The supercapacitor exhibited good electrochemical performance with a high capacitance of 22 F g-1 for a discharge current of 2 mA. Long-term cyclability tests show that the device can keep about 85% of its capacitance after 500 cycles, even without encapsulation. We found power and energy densities of 110 W kg-1 and 3 Wh kg-1, respectively. All the experimental results indicate that the colloidal graphite Aquadag® is a promising material for application in supercapacitors.ABM, ABC, ABPol2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700219Materials Research v.24 suppl.1 2021reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2021-0013info:eu-repo/semantics/openAccessKlem,Maykel dos SantosNogueira,Gabriel LeonardoAlves,Nerieng2021-08-30T00:00:00Zoai:scielo:S1516-14392021000700219Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2021-08-30T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Low-cost supercapacitor based on colloidal graphite
title Low-cost supercapacitor based on colloidal graphite
spellingShingle Low-cost supercapacitor based on colloidal graphite
Klem,Maykel dos Santos
Colloidal Graphite
Aquadag
Supercapacitor
Energy Storage
title_short Low-cost supercapacitor based on colloidal graphite
title_full Low-cost supercapacitor based on colloidal graphite
title_fullStr Low-cost supercapacitor based on colloidal graphite
title_full_unstemmed Low-cost supercapacitor based on colloidal graphite
title_sort Low-cost supercapacitor based on colloidal graphite
author Klem,Maykel dos Santos
author_facet Klem,Maykel dos Santos
Nogueira,Gabriel Leonardo
Alves,Neri
author_role author
author2 Nogueira,Gabriel Leonardo
Alves,Neri
author2_role author
author
dc.contributor.author.fl_str_mv Klem,Maykel dos Santos
Nogueira,Gabriel Leonardo
Alves,Neri
dc.subject.por.fl_str_mv Colloidal Graphite
Aquadag
Supercapacitor
Energy Storage
topic Colloidal Graphite
Aquadag
Supercapacitor
Energy Storage
description Abstract Here we report the production and characterization of a low-cost supercapacitor with electrodes based on colloidal graphite. We characterized the as-prepared device in terms of cyclic voltammetry (CV), Galvanostatic charge/discharge (GCD), and impedance spectroscopy. The supercapacitor exhibited good electrochemical performance with a high capacitance of 22 F g-1 for a discharge current of 2 mA. Long-term cyclability tests show that the device can keep about 85% of its capacitance after 500 cycles, even without encapsulation. We found power and energy densities of 110 W kg-1 and 3 Wh kg-1, respectively. All the experimental results indicate that the colloidal graphite Aquadag® is a promising material for application in supercapacitors.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700219
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700219
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2021-0013
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.24 suppl.1 2021
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212679774371840

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