Nanostructured Manganese Dioxide for Hybrid Supercapacitor Electrodes
Hybrid supercapacitors, as emerging energy storage devices, have gained much attention in recent years due to their high energy density, fast charge/discharge and long cyclabilities. Among the wide range of systems covered by this topic, low cost, environmental friendliness and high power provide Mn...
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| Format: | Article |
| Language: | English |
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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/2313-0105/8/12/263 |
| _version_ | 1827641839481520128 |
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| author | Jon Rodriguez-Romero Idoia Ruiz de Larramendi Eider Goikolea |
| author_facet | Jon Rodriguez-Romero Idoia Ruiz de Larramendi Eider Goikolea |
| author_sort | Jon Rodriguez-Romero |
| collection | DOAJ |
| description | Hybrid supercapacitors, as emerging energy storage devices, have gained much attention in recent years due to their high energy density, fast charge/discharge and long cyclabilities. Among the wide range of systems covered by this topic, low cost, environmental friendliness and high power provide MnO<sub>2</sub> with great characteristics to be a competitive candidate. The present work reports a hybrid aqueous supercapacitor system using a commercial activated carbon as the negative electrode and a synthesized manganese dioxide as the positive electrode. Two manganese dioxide polymorphs (α-MnO<sub>2</sub> and δ-MnO<sub>2</sub>) were tested in different neutral and basic aqueous electrolytes. In this way, full cell systems that reached an energy density of 15.6 Wh kg<sup>−1</sup> at a power density of 1 kW kg<sup>−1</sup> were achieved. The electrode–electrolyte combination explored in this study exhibits excellent performance without losing capacity after 5000 charge/discharge cycles, leading to a promising approach towards more sustainable, high-performance energy storage systems. |
| first_indexed | 2024-03-09T17:20:20Z |
| format | Article |
| id | doaj.art-a2811ffae6134b70a0b1e8da9f97e87c |
| institution | Directory Open Access Journal |
| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-03-09T17:20:20Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Batteries |
| spelling | doaj.art-a2811ffae6134b70a0b1e8da9f97e87c2023-11-24T13:16:44ZengMDPI AGBatteries2313-01052022-11-0181226310.3390/batteries8120263Nanostructured Manganese Dioxide for Hybrid Supercapacitor ElectrodesJon Rodriguez-Romero0Idoia Ruiz de Larramendi1Eider Goikolea2Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainDepartamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainDepartamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainHybrid supercapacitors, as emerging energy storage devices, have gained much attention in recent years due to their high energy density, fast charge/discharge and long cyclabilities. Among the wide range of systems covered by this topic, low cost, environmental friendliness and high power provide MnO<sub>2</sub> with great characteristics to be a competitive candidate. The present work reports a hybrid aqueous supercapacitor system using a commercial activated carbon as the negative electrode and a synthesized manganese dioxide as the positive electrode. Two manganese dioxide polymorphs (α-MnO<sub>2</sub> and δ-MnO<sub>2</sub>) were tested in different neutral and basic aqueous electrolytes. In this way, full cell systems that reached an energy density of 15.6 Wh kg<sup>−1</sup> at a power density of 1 kW kg<sup>−1</sup> were achieved. The electrode–electrolyte combination explored in this study exhibits excellent performance without losing capacity after 5000 charge/discharge cycles, leading to a promising approach towards more sustainable, high-performance energy storage systems.https://www.mdpi.com/2313-0105/8/12/263hybrid supercapacitorenergy storage systemselectrochemistrypseudocapacitive electrodemanganese dioxide |
| spellingShingle | Jon Rodriguez-Romero Idoia Ruiz de Larramendi Eider Goikolea Nanostructured Manganese Dioxide for Hybrid Supercapacitor Electrodes Batteries hybrid supercapacitor energy storage systems electrochemistry pseudocapacitive electrode manganese dioxide |
| title | Nanostructured Manganese Dioxide for Hybrid Supercapacitor Electrodes |
| title_full | Nanostructured Manganese Dioxide for Hybrid Supercapacitor Electrodes |
| title_fullStr | Nanostructured Manganese Dioxide for Hybrid Supercapacitor Electrodes |
| title_full_unstemmed | Nanostructured Manganese Dioxide for Hybrid Supercapacitor Electrodes |
| title_short | Nanostructured Manganese Dioxide for Hybrid Supercapacitor Electrodes |
| title_sort | nanostructured manganese dioxide for hybrid supercapacitor electrodes |
| topic | hybrid supercapacitor energy storage systems electrochemistry pseudocapacitive electrode manganese dioxide |
| url | https://www.mdpi.com/2313-0105/8/12/263 |
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