Multi-Functional Potassium Ion Assists Ammonium Vanadium Oxide Cathode for High-Performance Aqueous Zinc-Ion Batteries
Ammonium vanadium oxide (NH<sub>4</sub>V<sub>4</sub>O<sub>10</sub>) is a promising layered cathode for aqueous zinc-ion batteries owing to its high specific capacity (>300 mA h g<sup>−1</sup>). However, the structural instability causes serious cycl...
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MDPI AG
2022-08-01
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| Series: | Batteries |
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| Online Access: | https://www.mdpi.com/2313-0105/8/8/84 |
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| author | Dan He Tianjiang Sun Qiaoran Wang Tao Ma Shibing Zheng Zhanliang Tao Jing Liang |
| author_facet | Dan He Tianjiang Sun Qiaoran Wang Tao Ma Shibing Zheng Zhanliang Tao Jing Liang |
| author_sort | Dan He |
| collection | DOAJ |
| description | Ammonium vanadium oxide (NH<sub>4</sub>V<sub>4</sub>O<sub>10</sub>) is a promising layered cathode for aqueous zinc-ion batteries owing to its high specific capacity (>300 mA h g<sup>−1</sup>). However, the structural instability causes serious cycling degradation through irreversible insertion/extraction of NH<sub>4</sub><sup>+</sup>. Herein, a new potassium ammonium vanadate K<i><sub>x</sub></i>(NH<sub>4</sub>)<sub>1−<i>x</i></sub>V<sub>4</sub>O<sub>10</sub> (named KNVO) is successfully synthesized by a one-step hydrothermal method. The inserted of K<sup>+</sup> can act as structural pillars, connect the adjacent layers closer and partially reduce the de-insertion of NH<sub>4</sub><sup>+</sup>. Due to the multi-functional of K<sup>+</sup>, the prepared KNVO presents a high specific discharge capacity of 432 mA h g<sup>−1</sup> at a current density of 0.4 A g<sup>−1</sup>, long cycle stability (2000 cycles, 94.2%) as well as impressive rate performance (200 mA h g<sup>−1</sup> at 8 A g<sup>−1</sup>). |
| first_indexed | 2024-03-09T11:53:57Z |
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| id | doaj.art-359e301912784e9ca64026c00ab3de8e |
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| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-03-09T11:53:57Z |
| publishDate | 2022-08-01 |
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| series | Batteries |
| spelling | doaj.art-359e301912784e9ca64026c00ab3de8e2023-11-30T23:11:39ZengMDPI AGBatteries2313-01052022-08-01888410.3390/batteries8080084Multi-Functional Potassium Ion Assists Ammonium Vanadium Oxide Cathode for High-Performance Aqueous Zinc-Ion BatteriesDan He0Tianjiang Sun1Qiaoran Wang2Tao Ma3Shibing Zheng4Zhanliang Tao5Jing Liang6Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, ChinaKey Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, ChinaKey Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, ChinaKey Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, ChinaKey Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, ChinaKey Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, ChinaKey Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, ChinaAmmonium vanadium oxide (NH<sub>4</sub>V<sub>4</sub>O<sub>10</sub>) is a promising layered cathode for aqueous zinc-ion batteries owing to its high specific capacity (>300 mA h g<sup>−1</sup>). However, the structural instability causes serious cycling degradation through irreversible insertion/extraction of NH<sub>4</sub><sup>+</sup>. Herein, a new potassium ammonium vanadate K<i><sub>x</sub></i>(NH<sub>4</sub>)<sub>1−<i>x</i></sub>V<sub>4</sub>O<sub>10</sub> (named KNVO) is successfully synthesized by a one-step hydrothermal method. The inserted of K<sup>+</sup> can act as structural pillars, connect the adjacent layers closer and partially reduce the de-insertion of NH<sub>4</sub><sup>+</sup>. Due to the multi-functional of K<sup>+</sup>, the prepared KNVO presents a high specific discharge capacity of 432 mA h g<sup>−1</sup> at a current density of 0.4 A g<sup>−1</sup>, long cycle stability (2000 cycles, 94.2%) as well as impressive rate performance (200 mA h g<sup>−1</sup> at 8 A g<sup>−1</sup>).https://www.mdpi.com/2313-0105/8/8/84aqueous zinc-ion batteriescathode materialsvanadium-basedpotassium ammonium vanadate |
| spellingShingle | Dan He Tianjiang Sun Qiaoran Wang Tao Ma Shibing Zheng Zhanliang Tao Jing Liang Multi-Functional Potassium Ion Assists Ammonium Vanadium Oxide Cathode for High-Performance Aqueous Zinc-Ion Batteries Batteries aqueous zinc-ion batteries cathode materials vanadium-based potassium ammonium vanadate |
| title | Multi-Functional Potassium Ion Assists Ammonium Vanadium Oxide Cathode for High-Performance Aqueous Zinc-Ion Batteries |
| title_full | Multi-Functional Potassium Ion Assists Ammonium Vanadium Oxide Cathode for High-Performance Aqueous Zinc-Ion Batteries |
| title_fullStr | Multi-Functional Potassium Ion Assists Ammonium Vanadium Oxide Cathode for High-Performance Aqueous Zinc-Ion Batteries |
| title_full_unstemmed | Multi-Functional Potassium Ion Assists Ammonium Vanadium Oxide Cathode for High-Performance Aqueous Zinc-Ion Batteries |
| title_short | Multi-Functional Potassium Ion Assists Ammonium Vanadium Oxide Cathode for High-Performance Aqueous Zinc-Ion Batteries |
| title_sort | multi functional potassium ion assists ammonium vanadium oxide cathode for high performance aqueous zinc ion batteries |
| topic | aqueous zinc-ion batteries cathode materials vanadium-based potassium ammonium vanadate |
| url | https://www.mdpi.com/2313-0105/8/8/84 |
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