High stability of Cu-doped O3-type NaNi1/3Fe1/3Mn1/3O2 cathode material for sodium-ion battery
文献类型：期刊论文
| 作者 | Xu, Xiaojing1; Liu, Guoqiang1,2; Su, Chang1; Zhang, Yixuan1; Wen, Lei3 |
| 刊名 | IONICS
 |
| 出版日期 | 2024-05-09 |
| 页码 | 11 |
| 关键词 | Cu-doping O3-Na[Fe1/3Ni1/3Mn1/3](1-x)CuxO2 Structure stability, Air stability |
| ISSN号 | 0947-7047 |
| DOI | 10.1007/s11581-024-05511-7 |
| 通讯作者 | Liu, Guoqiang(liugq@smm.neu.edu.cn) ; Wen, Lei(leiwen@imr.ac.cn) |
| 英文摘要 | In this work, Cu-doped O3-Na[Fe1/3Ni1/3Mn1/3](1-x)CuxO2 cathodes were studied to enhance the structure stability and air stability. XPS analysis reveals that Cu-doping changes the electronic structure of Mn, thus enhancing the electrochemical performance of the NFM. The Cu-doped O3-Na[Fe1/3Ni1/3Mn1/3](0.95)Cu0.05O2 (NFMC-0.05) cathode remains a capacity of 81.6 mAh g(-1) at 10 C and keeps a capacity retention of 80.7% after 200 cycles at 0.5 C, while the undoped O3-NaFe1/3Ni1/3Mn1/3O2 (NFM) can only remain a capacity of 59.9 mAh g(-1) at 10 C and keep a capacity retention of 68.9% after 200 cycles at 0.5 C. The 9-day air-exposed NFMC-0.05 exhibits a higher capacity of 97.3 mAh g(-1) than the 9-day air-exposed NFM (58 mAh g(-1)) at 0.1 C, showing greatly enhanced air stability. Moreover, Cu-doping reduces the Rct value and the polarization, leading to a significant improvement in electronic conductivity. These results confirm that a small quantity (5 at. %) of Cu-doping improves the structural stability and air stability of the material, leading to the excellent electrochemical performance. |
| 资助项目 | National Natural Science Foundation of China ; [51574081] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001221010300001 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | National Natural Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Guoqiang; Wen, Lei |
| 作者单位 | 1.Northeastern Univ, Sch Met, Key Lab Ecol Met Multimetall Mineral, Minist Educ, Shenyang 110819, Peoples R China 2.Sichuan Vocat & Tech Coll, Suining 629000, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Xiaojing,Liu, Guoqiang,Su, Chang,et al. High stability of Cu-doped O3-type NaNi1/3Fe1/3Mn1/3O2 cathode material for sodium-ion battery[J]. IONICS,2024:11. |
| APA | Xu, Xiaojing,Liu, Guoqiang,Su, Chang,Zhang, Yixuan,&Wen, Lei.(2024).High stability of Cu-doped O3-type NaNi1/3Fe1/3Mn1/3O2 cathode material for sodium-ion battery.IONICS,11. |
| MLA | Xu, Xiaojing,et al."High stability of Cu-doped O3-type NaNi1/3Fe1/3Mn1/3O2 cathode material for sodium-ion battery".IONICS (2024):11. |
入库方式： OAI收割
来源：金属研究所
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