{"title":"实现先进钠离子电池用锆替代 O3 型 NaNi1/3Fe1/3Mn1/3O2 正极材料的高稳定性","authors":"Chunyu Jiang, Yingshuai Wang, Yuhang Xin, Xiangyu Ding, Shengkai Liu, Yanfei Pang, Baorui Chen, Yusong Wang, Lei Liu, Feng Wu, Hongcai Gao","doi":"10.1002/cnl2.115","DOIUrl":null,"url":null,"abstract":"<p>We successfully synthesized a series of O3-type NaNi<sub>1/3</sub>Fe<sub>1/3</sub>Mn<sub>1/3−<i>x</i></sub>Zr<sub><i>x</i></sub>O<sub>2</sub> (<i>x</i> = 0, 0.01, 0.02, 0.04) cathode materials by the solid-state reaction method. Energy dispersion spectroscopy, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy results confirmed the successful incorporation of Zr elements into the lattice to substitute Mn. Due to the introduction of Zr<sup>4+</sup>, the crystal structure modulation of O3-NaNi<sub>1/3</sub>Fe<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> has been realized. By increasing the Zr<sup>4+</sup> content, the width of the sodium diffusion layer expands, thereby facilitating the diffusion of sodium ions. Consequently, the material exhibits a remarkable enhancement in high-rate capability. At the same time, increasing the Zr<sup>4+</sup> content results in a notable decrease in both the average bond length of TM−O and the thickness of the TMO<sub>6</sub> octahedron in the transition metal layer, resulting in a significant improvement in the cycling performance and structural stability of the cathode material. Additionally, the in-situ XRD results demonstrate that the optimized cathode composition of O3-NaNi<sub>1/3</sub>Fe<sub>1/3</sub>Mn<sub>1/3–0.02</sub>Zr<sub>0.02</sub>O<sub>2</sub> (NFMZ2) undergoes a reversible phase transition of O3 → O3 + P3 → P3 → O3 + P3 → O3 during the charge–discharge process.</p>","PeriodicalId":100214,"journal":{"name":"Carbon Neutralization","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnl2.115","citationCount":"0","resultStr":"{\"title\":\"Toward high stability of O3-type NaNi1/3Fe1/3Mn1/3O2 cathode material with zirconium substitution for advanced sodium-ion batteries\",\"authors\":\"Chunyu Jiang, Yingshuai Wang, Yuhang Xin, Xiangyu Ding, Shengkai Liu, Yanfei Pang, Baorui Chen, Yusong Wang, Lei Liu, Feng Wu, Hongcai Gao\",\"doi\":\"10.1002/cnl2.115\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>We successfully synthesized a series of O3-type NaNi<sub>1/3</sub>Fe<sub>1/3</sub>Mn<sub>1/3−<i>x</i></sub>Zr<sub><i>x</i></sub>O<sub>2</sub> (<i>x</i> = 0, 0.01, 0.02, 0.04) cathode materials by the solid-state reaction method. Energy dispersion spectroscopy, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy results confirmed the successful incorporation of Zr elements into the lattice to substitute Mn. Due to the introduction of Zr<sup>4+</sup>, the crystal structure modulation of O3-NaNi<sub>1/3</sub>Fe<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> has been realized. By increasing the Zr<sup>4+</sup> content, the width of the sodium diffusion layer expands, thereby facilitating the diffusion of sodium ions. Consequently, the material exhibits a remarkable enhancement in high-rate capability. At the same time, increasing the Zr<sup>4+</sup> content results in a notable decrease in both the average bond length of TM−O and the thickness of the TMO<sub>6</sub> octahedron in the transition metal layer, resulting in a significant improvement in the cycling performance and structural stability of the cathode material. Additionally, the in-situ XRD results demonstrate that the optimized cathode composition of O3-NaNi<sub>1/3</sub>Fe<sub>1/3</sub>Mn<sub>1/3–0.02</sub>Zr<sub>0.02</sub>O<sub>2</sub> (NFMZ2) undergoes a reversible phase transition of O3 → O3 + P3 → P3 → O3 + P3 → O3 during the charge–discharge process.</p>\",\"PeriodicalId\":100214,\"journal\":{\"name\":\"Carbon Neutralization\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-02-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cnl2.115\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Carbon Neutralization\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/cnl2.115\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carbon Neutralization","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/cnl2.115","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Toward high stability of O3-type NaNi1/3Fe1/3Mn1/3O2 cathode material with zirconium substitution for advanced sodium-ion batteries
We successfully synthesized a series of O3-type NaNi1/3Fe1/3Mn1/3−xZrxO2 (x = 0, 0.01, 0.02, 0.04) cathode materials by the solid-state reaction method. Energy dispersion spectroscopy, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy results confirmed the successful incorporation of Zr elements into the lattice to substitute Mn. Due to the introduction of Zr4+, the crystal structure modulation of O3-NaNi1/3Fe1/3Mn1/3O2 has been realized. By increasing the Zr4+ content, the width of the sodium diffusion layer expands, thereby facilitating the diffusion of sodium ions. Consequently, the material exhibits a remarkable enhancement in high-rate capability. At the same time, increasing the Zr4+ content results in a notable decrease in both the average bond length of TM−O and the thickness of the TMO6 octahedron in the transition metal layer, resulting in a significant improvement in the cycling performance and structural stability of the cathode material. Additionally, the in-situ XRD results demonstrate that the optimized cathode composition of O3-NaNi1/3Fe1/3Mn1/3–0.02Zr0.02O2 (NFMZ2) undergoes a reversible phase transition of O3 → O3 + P3 → P3 → O3 + P3 → O3 during the charge–discharge process.