Nanostructured Lead Electrodes with Reduced Graphene Oxide for High-Performance Lead–Acid Batteries
Nanostructured Pb electrodes consisting of nanowire arrays were obtained by electrodeposition, to be used as negative electrodes for lead–acid batteries. Reduced graphene oxide was added to improve their performances. This was achieved via the electrochemical reduction of graphene oxide directly on...
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| Format: | Article |
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MDPI AG
2022-11-01
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| Series: | Batteries |
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| Online Access: | https://www.mdpi.com/2313-0105/8/11/211 |
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| author | Matteo Rossini Fabrizio Ganci Claudio Zanca Bernardo Patella Giuseppe Aiello Rosalinda Inguanta |
| author_facet | Matteo Rossini Fabrizio Ganci Claudio Zanca Bernardo Patella Giuseppe Aiello Rosalinda Inguanta |
| author_sort | Matteo Rossini |
| collection | DOAJ |
| description | Nanostructured Pb electrodes consisting of nanowire arrays were obtained by electrodeposition, to be used as negative electrodes for lead–acid batteries. Reduced graphene oxide was added to improve their performances. This was achieved via the electrochemical reduction of graphene oxide directly on the surface of nanowire arrays. The electrodes with and without reduced graphene oxide were tested in a 5 M sulfuric acid solution using a commercial pasted positive plate and an absorbed glass mat separator in a zero-gap configuration. The electrodes were tested in deep cycling conditions with a very low cut-off potential. Charge–discharge tests were performed at 5C. The electrode with reduced graphene oxide outperformed the electrode without reduced graphene oxide, as it was able to work with a very high utilization of active mass and efficiency. A specific capacity of 258 mAhg<sup>−1</sup>–very close to the theoretical one–was achieved, and the electrode lasted for more than 1000 cycles. On the other hand, the electrode without reduced graphene oxide achieved a capacity close to 230 mAhg<sup>−1</sup>, which corresponds to a 90% of utilization of active mass. |
| first_indexed | 2024-03-09T19:15:48Z |
| format | Article |
| id | doaj.art-0a05c3eda9c34ae0a5fb6c09510c5340 |
| institution | Directory Open Access Journal |
| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-03-09T19:15:48Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Batteries |
| spelling | doaj.art-0a05c3eda9c34ae0a5fb6c09510c53402023-11-24T03:44:55ZengMDPI AGBatteries2313-01052022-11-0181121110.3390/batteries8110211Nanostructured Lead Electrodes with Reduced Graphene Oxide for High-Performance Lead–Acid BatteriesMatteo Rossini0Fabrizio Ganci1Claudio Zanca2Bernardo Patella3Giuseppe Aiello4Rosalinda Inguanta5Laboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università di Palermo, Viale delle Scienze, 90128 Palermo, ItalyLaboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università di Palermo, Viale delle Scienze, 90128 Palermo, ItalyLaboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università di Palermo, Viale delle Scienze, 90128 Palermo, ItalyLaboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università di Palermo, Viale delle Scienze, 90128 Palermo, ItalyLaboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università di Palermo, Viale delle Scienze, 90128 Palermo, ItalyLaboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università di Palermo, Viale delle Scienze, 90128 Palermo, ItalyNanostructured Pb electrodes consisting of nanowire arrays were obtained by electrodeposition, to be used as negative electrodes for lead–acid batteries. Reduced graphene oxide was added to improve their performances. This was achieved via the electrochemical reduction of graphene oxide directly on the surface of nanowire arrays. The electrodes with and without reduced graphene oxide were tested in a 5 M sulfuric acid solution using a commercial pasted positive plate and an absorbed glass mat separator in a zero-gap configuration. The electrodes were tested in deep cycling conditions with a very low cut-off potential. Charge–discharge tests were performed at 5C. The electrode with reduced graphene oxide outperformed the electrode without reduced graphene oxide, as it was able to work with a very high utilization of active mass and efficiency. A specific capacity of 258 mAhg<sup>−1</sup>–very close to the theoretical one–was achieved, and the electrode lasted for more than 1000 cycles. On the other hand, the electrode without reduced graphene oxide achieved a capacity close to 230 mAhg<sup>−1</sup>, which corresponds to a 90% of utilization of active mass.https://www.mdpi.com/2313-0105/8/11/211lead–acid batteriesnegative electrodenanostructuresreduced graphene oxidetemplate electrodepositionhigh C-rate |
| spellingShingle | Matteo Rossini Fabrizio Ganci Claudio Zanca Bernardo Patella Giuseppe Aiello Rosalinda Inguanta Nanostructured Lead Electrodes with Reduced Graphene Oxide for High-Performance Lead–Acid Batteries Batteries lead–acid batteries negative electrode nanostructures reduced graphene oxide template electrodeposition high C-rate |
| title | Nanostructured Lead Electrodes with Reduced Graphene Oxide for High-Performance Lead–Acid Batteries |
| title_full | Nanostructured Lead Electrodes with Reduced Graphene Oxide for High-Performance Lead–Acid Batteries |
| title_fullStr | Nanostructured Lead Electrodes with Reduced Graphene Oxide for High-Performance Lead–Acid Batteries |
| title_full_unstemmed | Nanostructured Lead Electrodes with Reduced Graphene Oxide for High-Performance Lead–Acid Batteries |
| title_short | Nanostructured Lead Electrodes with Reduced Graphene Oxide for High-Performance Lead–Acid Batteries |
| title_sort | nanostructured lead electrodes with reduced graphene oxide for high performance lead acid batteries |
| topic | lead–acid batteries negative electrode nanostructures reduced graphene oxide template electrodeposition high C-rate |
| url | https://www.mdpi.com/2313-0105/8/11/211 |
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