Yulia D. Salnikova, Mikhail A. Kamenskii, Elena G. Tolstopyatova, Veniamin V. Kondratiev
{"title":"铝离子掺杂钒氧化物作为高稳定性锌离子电池阴极","authors":"Yulia D. Salnikova, Mikhail A. Kamenskii, Elena G. Tolstopyatova, Veniamin V. Kondratiev","doi":"10.1016/j.ssi.2025.116946","DOIUrl":null,"url":null,"abstract":"<div><div>In this work, Al<sup>3+</sup>- doped nanosized layered vanadium oxides (Al<sub>x</sub>V<sub>2</sub>O<sub>5</sub>) with different Al:V ratios have been synthesized by hydrothermal method. The morphology and structure of the obtained compounds were characterized by scanning electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. Thin layers of Al-doped vanadium oxide agglomerated in the form of “nanoflowers”. The presence of Al<sup>3+</sup> in the layered structure of the vanadium oxide Al<sub>x</sub>V<sub>2</sub>O<sub>5</sub> with expanded interlayer distance was confirmed. The electrochemical properties of the obtained cathode materials were investigated in coin-type zinc-ion battery cells with a zinc anode in an aqueous solution of 3 M ZnSO<sub>4</sub> by cyclic voltammetry and galvanostatic charge/discharge. The initial capacity of the cathodes depended on the aluminum content (<em>x</em>-values). The highest initial capacity of 383 mAh·g<sup>−1</sup> at a current density of 1.0 A·g<sup>−1</sup> was observed for Al<sub>0.060</sub>V<sub>2</sub>O<sub>5</sub>, which degraded faster due to the lower content of Al<sup>3+</sup> ions, and the capacity retention was 89 % of the initial value. Al<sub>0.072</sub>V<sub>2</sub>O<sub>5</sub> had the lowest initial discharge capacity (196 mAh·g<sup>−1</sup>), but was the most stable with a capacity retention of 98 % (192 mAh·g<sup>−1</sup> after 100 cycles) and 96 % (189 mAh·g<sup>−1</sup> after 300 cycles). Except for the first cycle, the coulombic efficiency of all cathodes is close to 100 %, confirming the perfect reversibility of the charge/discharge process.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"428 ","pages":"Article 116946"},"PeriodicalIF":3.0000,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Aluminum ion doped vanadium oxides as highly stable cathodes for aqueous zinc ion batteries\",\"authors\":\"Yulia D. Salnikova, Mikhail A. Kamenskii, Elena G. Tolstopyatova, Veniamin V. Kondratiev\",\"doi\":\"10.1016/j.ssi.2025.116946\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In this work, Al<sup>3+</sup>- doped nanosized layered vanadium oxides (Al<sub>x</sub>V<sub>2</sub>O<sub>5</sub>) with different Al:V ratios have been synthesized by hydrothermal method. The morphology and structure of the obtained compounds were characterized by scanning electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. Thin layers of Al-doped vanadium oxide agglomerated in the form of “nanoflowers”. The presence of Al<sup>3+</sup> in the layered structure of the vanadium oxide Al<sub>x</sub>V<sub>2</sub>O<sub>5</sub> with expanded interlayer distance was confirmed. The electrochemical properties of the obtained cathode materials were investigated in coin-type zinc-ion battery cells with a zinc anode in an aqueous solution of 3 M ZnSO<sub>4</sub> by cyclic voltammetry and galvanostatic charge/discharge. The initial capacity of the cathodes depended on the aluminum content (<em>x</em>-values). The highest initial capacity of 383 mAh·g<sup>−1</sup> at a current density of 1.0 A·g<sup>−1</sup> was observed for Al<sub>0.060</sub>V<sub>2</sub>O<sub>5</sub>, which degraded faster due to the lower content of Al<sup>3+</sup> ions, and the capacity retention was 89 % of the initial value. Al<sub>0.072</sub>V<sub>2</sub>O<sub>5</sub> had the lowest initial discharge capacity (196 mAh·g<sup>−1</sup>), but was the most stable with a capacity retention of 98 % (192 mAh·g<sup>−1</sup> after 100 cycles) and 96 % (189 mAh·g<sup>−1</sup> after 300 cycles). Except for the first cycle, the coulombic efficiency of all cathodes is close to 100 %, confirming the perfect reversibility of the charge/discharge process.</div></div>\",\"PeriodicalId\":431,\"journal\":{\"name\":\"Solid State Ionics\",\"volume\":\"428 \",\"pages\":\"Article 116946\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2025-07-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Solid State Ionics\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0167273825001651\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid State Ionics","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167273825001651","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Aluminum ion doped vanadium oxides as highly stable cathodes for aqueous zinc ion batteries
In this work, Al3+- doped nanosized layered vanadium oxides (AlxV2O5) with different Al:V ratios have been synthesized by hydrothermal method. The morphology and structure of the obtained compounds were characterized by scanning electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. Thin layers of Al-doped vanadium oxide agglomerated in the form of “nanoflowers”. The presence of Al3+ in the layered structure of the vanadium oxide AlxV2O5 with expanded interlayer distance was confirmed. The electrochemical properties of the obtained cathode materials were investigated in coin-type zinc-ion battery cells with a zinc anode in an aqueous solution of 3 M ZnSO4 by cyclic voltammetry and galvanostatic charge/discharge. The initial capacity of the cathodes depended on the aluminum content (x-values). The highest initial capacity of 383 mAh·g−1 at a current density of 1.0 A·g−1 was observed for Al0.060V2O5, which degraded faster due to the lower content of Al3+ ions, and the capacity retention was 89 % of the initial value. Al0.072V2O5 had the lowest initial discharge capacity (196 mAh·g−1), but was the most stable with a capacity retention of 98 % (192 mAh·g−1 after 100 cycles) and 96 % (189 mAh·g−1 after 300 cycles). Except for the first cycle, the coulombic efficiency of all cathodes is close to 100 %, confirming the perfect reversibility of the charge/discharge process.
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