Anion and Cation Co-Modified Vanadium Oxide for Cathode Material of Aqueous Zinc-Ion Battery
Aqueous zinc-ion batteries (ZIBs) have been regarded as a promising alternative to traditional lithium-based batteries due to their intrinsic advantages of safety, low cost, and abundance. However, the strong electrostatic interaction between Zn<sup>2+</sup> and the layer-structured cath...
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MDPI AG
2023-07-01
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| author | Xueqi Zhang Ruilin Bian Zhiyuan Sang Shandong Tan Ji Liang Liqun Wang Feng Hou |
| author_facet | Xueqi Zhang Ruilin Bian Zhiyuan Sang Shandong Tan Ji Liang Liqun Wang Feng Hou |
| author_sort | Xueqi Zhang |
| collection | DOAJ |
| description | Aqueous zinc-ion batteries (ZIBs) have been regarded as a promising alternative to traditional lithium-based batteries due to their intrinsic advantages of safety, low cost, and abundance. However, the strong electrostatic interaction between Zn<sup>2+</sup> and the layer-structured cathodes is still a key issue that hinders the batteries from storing more Zn. Herein, we report partially nitrided and cation-doped vanadium oxide for improved Zn storage performance. Specifically, the defects and nitride species that are generated inside the material upon nitriding improve the conductivity of the material and introduce a new Zn storage mechanism. The intercalation of cations, in contrast, widens the interlayer spacing to store more Zn<sup>2+</sup> ions and enhances the cycling stability of the material. These merits synergistically lead to significantly enhanced electrochemical Zn<sup>2+</sup> ion storage performance, in terms of a high specific capacity of 418.5 mAh·g<sup>−1</sup> at a current density of 0.1 A·g<sup>−1</sup> and a capacity retention of 81.2% after 500 cycles at 2.0 A·g<sup>−1</sup>. The new modification strategy for V<sub>2</sub>O<sub>5</sub> suggested in this work could provide insight into the development of high-performance ZIBs. |
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| language | English |
| last_indexed | 2024-03-11T01:18:17Z |
| publishDate | 2023-07-01 |
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| spelling | doaj.art-1549d74662c94f889df83421b5abed9c2023-11-18T18:18:46ZengMDPI AGBatteries2313-01052023-07-019735210.3390/batteries9070352Anion and Cation Co-Modified Vanadium Oxide for Cathode Material of Aqueous Zinc-Ion BatteryXueqi Zhang0Ruilin Bian1Zhiyuan Sang2Shandong Tan3Ji Liang4Liqun Wang5Feng Hou6Key Laboratory of Advanced Ceramics and Machining Technology of the Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, ChinaKey Laboratory of Advanced Ceramics and Machining Technology of the Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, ChinaKey Laboratory of Advanced Ceramics and Machining Technology of the Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, ChinaKey Laboratory of Advanced Ceramics and Machining Technology of the Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, ChinaKey Laboratory of Advanced Ceramics and Machining Technology of the Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, ChinaApplied Physics Department, College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, ChinaKey Laboratory of Advanced Ceramics and Machining Technology of the Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, ChinaAqueous zinc-ion batteries (ZIBs) have been regarded as a promising alternative to traditional lithium-based batteries due to their intrinsic advantages of safety, low cost, and abundance. However, the strong electrostatic interaction between Zn<sup>2+</sup> and the layer-structured cathodes is still a key issue that hinders the batteries from storing more Zn. Herein, we report partially nitrided and cation-doped vanadium oxide for improved Zn storage performance. Specifically, the defects and nitride species that are generated inside the material upon nitriding improve the conductivity of the material and introduce a new Zn storage mechanism. The intercalation of cations, in contrast, widens the interlayer spacing to store more Zn<sup>2+</sup> ions and enhances the cycling stability of the material. These merits synergistically lead to significantly enhanced electrochemical Zn<sup>2+</sup> ion storage performance, in terms of a high specific capacity of 418.5 mAh·g<sup>−1</sup> at a current density of 0.1 A·g<sup>−1</sup> and a capacity retention of 81.2% after 500 cycles at 2.0 A·g<sup>−1</sup>. The new modification strategy for V<sub>2</sub>O<sub>5</sub> suggested in this work could provide insight into the development of high-performance ZIBs.https://www.mdpi.com/2313-0105/9/7/352aqueous zinc-ion batteriescathode materialsvanadium oxidepartial nitridationanion/cation co-doping |
| spellingShingle | Xueqi Zhang Ruilin Bian Zhiyuan Sang Shandong Tan Ji Liang Liqun Wang Feng Hou Anion and Cation Co-Modified Vanadium Oxide for Cathode Material of Aqueous Zinc-Ion Battery Batteries aqueous zinc-ion batteries cathode materials vanadium oxide partial nitridation anion/cation co-doping |
| title | Anion and Cation Co-Modified Vanadium Oxide for Cathode Material of Aqueous Zinc-Ion Battery |
| title_full | Anion and Cation Co-Modified Vanadium Oxide for Cathode Material of Aqueous Zinc-Ion Battery |
| title_fullStr | Anion and Cation Co-Modified Vanadium Oxide for Cathode Material of Aqueous Zinc-Ion Battery |
| title_full_unstemmed | Anion and Cation Co-Modified Vanadium Oxide for Cathode Material of Aqueous Zinc-Ion Battery |
| title_short | Anion and Cation Co-Modified Vanadium Oxide for Cathode Material of Aqueous Zinc-Ion Battery |
| title_sort | anion and cation co modified vanadium oxide for cathode material of aqueous zinc ion battery |
| topic | aqueous zinc-ion batteries cathode materials vanadium oxide partial nitridation anion/cation co-doping |
| url | https://www.mdpi.com/2313-0105/9/7/352 |
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