Graphene Doped Carbon‐Gels and MnO2 for Next Generation of Solid‐State Asymmetric Supercapacitors
Abstract Supercapacitors are playing a very relevant role in many applications due to their capability to supply high power density and long durability. However, there is a growing demand to increase their energy density, in gravimetric and volumetric basis. There are different strategies to increas...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-12-01
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| Series: | ChemElectroChem |
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| Online Access: | https://doi.org/10.1002/celc.202300161 |
| _version_ | 1827585310187323392 |
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| author | Dr. Natalia Rey‐Raap Dr. Samantha L. Flores‐López Dr. Lucía dosSantos‐Gómez Antonino Brigandì Dr. Minju Thomas Prof. Dr. Antonia E. Stoyanova Dr. Francesco Lufrano Prof. Dr. Ana Arenillas |
| author_facet | Dr. Natalia Rey‐Raap Dr. Samantha L. Flores‐López Dr. Lucía dosSantos‐Gómez Antonino Brigandì Dr. Minju Thomas Prof. Dr. Antonia E. Stoyanova Dr. Francesco Lufrano Prof. Dr. Ana Arenillas |
| author_sort | Dr. Natalia Rey‐Raap |
| collection | DOAJ |
| description | Abstract Supercapacitors are playing a very relevant role in many applications due to their capability to supply high power density and long durability. However, there is a growing demand to increase their energy density, in gravimetric and volumetric basis. There are different strategies to increase supercapacitor performance by improving the active materials used in the electrodes, the type of electrolyte used or even the configuration employed in the cell. In this work, a combination of these strategies is presented with the use of different active materials, electrolytes, and symmetric vs. asymmetric configuration. The supercapacitor with asymmetric configuration using the graphene‐doped carbon xerogel in the negative electrode and the manganese oxide in the positive electrode, along with the use of Na+‐form Aquivion electrolyte membrane as solid electrolyte, seems to be a promising combination to obtain a substantial enhancement of both gravimetric and volumetric capacitance. Furthermore, the device presents great stability in a wide operational voltage window from 0 to 1.8 V and with a neutral pH polymer electrolyte which contributes to improve the performance, safety, and long cycle life of the device. |
| first_indexed | 2024-03-08T23:43:43Z |
| format | Article |
| id | doaj.art-66f977541b1c4bd0820b50dd4f3e540f |
| institution | Directory Open Access Journal |
| issn | 2196-0216 |
| language | English |
| last_indexed | 2024-03-08T23:43:43Z |
| publishDate | 2023-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemElectroChem |
| spelling | doaj.art-66f977541b1c4bd0820b50dd4f3e540f2023-12-14T03:57:12ZengWiley-VCHChemElectroChem2196-02162023-12-011024n/an/a10.1002/celc.202300161Graphene Doped Carbon‐Gels and MnO2 for Next Generation of Solid‐State Asymmetric SupercapacitorsDr. Natalia Rey‐Raap0Dr. Samantha L. Flores‐López1Dr. Lucía dosSantos‐Gómez2Antonino Brigandì3Dr. Minju Thomas4Prof. Dr. Antonia E. Stoyanova5Dr. Francesco Lufrano6Prof. Dr. Ana Arenillas7Instituto de Ciencia y Tecnología del Carbono (INCAR) CSIC 33011 Oviedo SpainInstituto de Ciencia y Tecnología del Carbono (INCAR) CSIC 33011 Oviedo SpainUniversidad de Málaga, Dpto. de Química Inorgánica Cristalografía y Mineralogía 29071 Málaga SpainIstituto di Tecnologie Avanzate per L'Energia “Nicola Giordano” CNR-ITAE 98126 Messina ItalyIstituto di Tecnologie Avanzate per L'Energia “Nicola Giordano” CNR-ITAE 98126 Messina ItalyInstitute of Electrochemistry and Energy Systems Bulgarian Academy of Sciences 1113 Sofia BulgariaIstituto di Tecnologie Avanzate per L'Energia “Nicola Giordano” CNR-ITAE 98126 Messina ItalyInstituto de Ciencia y Tecnología del Carbono (INCAR) CSIC 33011 Oviedo SpainAbstract Supercapacitors are playing a very relevant role in many applications due to their capability to supply high power density and long durability. However, there is a growing demand to increase their energy density, in gravimetric and volumetric basis. There are different strategies to increase supercapacitor performance by improving the active materials used in the electrodes, the type of electrolyte used or even the configuration employed in the cell. In this work, a combination of these strategies is presented with the use of different active materials, electrolytes, and symmetric vs. asymmetric configuration. The supercapacitor with asymmetric configuration using the graphene‐doped carbon xerogel in the negative electrode and the manganese oxide in the positive electrode, along with the use of Na+‐form Aquivion electrolyte membrane as solid electrolyte, seems to be a promising combination to obtain a substantial enhancement of both gravimetric and volumetric capacitance. Furthermore, the device presents great stability in a wide operational voltage window from 0 to 1.8 V and with a neutral pH polymer electrolyte which contributes to improve the performance, safety, and long cycle life of the device.https://doi.org/10.1002/celc.202300161asymmetric configurationgraphenesol-gel synthesissolid-state electrolytesupercapacitors |
| spellingShingle | Dr. Natalia Rey‐Raap Dr. Samantha L. Flores‐López Dr. Lucía dosSantos‐Gómez Antonino Brigandì Dr. Minju Thomas Prof. Dr. Antonia E. Stoyanova Dr. Francesco Lufrano Prof. Dr. Ana Arenillas Graphene Doped Carbon‐Gels and MnO2 for Next Generation of Solid‐State Asymmetric Supercapacitors ChemElectroChem asymmetric configuration graphene sol-gel synthesis solid-state electrolyte supercapacitors |
| title | Graphene Doped Carbon‐Gels and MnO2 for Next Generation of Solid‐State Asymmetric Supercapacitors |
| title_full | Graphene Doped Carbon‐Gels and MnO2 for Next Generation of Solid‐State Asymmetric Supercapacitors |
| title_fullStr | Graphene Doped Carbon‐Gels and MnO2 for Next Generation of Solid‐State Asymmetric Supercapacitors |
| title_full_unstemmed | Graphene Doped Carbon‐Gels and MnO2 for Next Generation of Solid‐State Asymmetric Supercapacitors |
| title_short | Graphene Doped Carbon‐Gels and MnO2 for Next Generation of Solid‐State Asymmetric Supercapacitors |
| title_sort | graphene doped carbon gels and mno2 for next generation of solid state asymmetric supercapacitors |
| topic | asymmetric configuration graphene sol-gel synthesis solid-state electrolyte supercapacitors |
| url | https://doi.org/10.1002/celc.202300161 |
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