Low-cost supercapacitor based on colloidal graphite

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dc.contributor.authorDos Santos Klem, Maykel [UNESP]
dc.contributor.authorNogueira, Gabriel Leonardo [UNESP]
dc.contributor.authorAlves, Neri [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-05-01T09:47:32Z
dc.date.available2022-05-01T09:47:32Z
dc.date.issued2021-01-01
dc.description.abstractHere 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-1for 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-1and 3 Wh kg-1, respectively. All the experimental results indicate that the colloidal graphite Aquadag® is a promising material for application in supercapacitors.en
dc.description.affiliationUniversidade Estadual Paulista (UNESP) Faculdade de Tecnologia e Ciências, SP
dc.description.affiliationUnespUniversidade Estadual Paulista (UNESP) Faculdade de Tecnologia e Ciências, SP
dc.identifierhttp://dx.doi.org/10.1590/1980-5373-MR-2021-0013
dc.identifier.citationMaterials Research, v. 24.
dc.identifier.doi10.1590/1980-5373-MR-2021-0013
dc.identifier.issn1980-5373
dc.identifier.issn1516-1439
dc.identifier.scopus2-s2.0-85118165639
dc.identifier.urihttp://hdl.handle.net/11449/233754
dc.language.isoeng
dc.relation.ispartofMaterials Research
dc.sourceScopus
dc.subjectAquadag
dc.subjectColloidal Graphite
dc.subjectEnergy Storage
dc.subjectSupercapacitor
dc.titleLow-cost supercapacitor based on colloidal graphiteen
dc.typeArtigo

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