Suppressing the P2-O2 Phase Transition of Na0.67Mn0.67Ni0.33O2 by Magnesium Substitution for Improved Sodium-Ion Batteries
文献类型：期刊论文
| 作者 | Wang, Peng-Fei1,2; You, Ya1; Yin, Ya-Xia1; Wang, Yue-Sheng3; Wan, Li-Jun1; Gu, Lin3; Guo, Yu-Guo1,2 |
| 刊名 | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
 |
| 出版日期 | 2016-06-20 |
| 卷号 | 55期号:26页码:7445-7449 |
| 关键词 | cyclability electrochemistry magnesium phase transitions sodium-ion batteries |
| 英文摘要 | Room-temperature sodium-ion batteries (SIBs) have shown great promise in grid-scale energy storage, portable electronics, and electric vehicles because of the abundance of low-cost sodium. Sodium-based layered oxides with a P2-type layered framework have been considered as one of the most promising cathode materials for SIBs. However, they suffer from the undesired P2-O2 phase transition, which leads to rapid capacity decay and limited reversible capacities. Herein, we show that this problem can be significantly mitigated by substituting some of the nickel ions with magnesium to obtain Na0.67Mn0.67Ni0.33-xMgxO2 (0 <= x <= 0.33). Both the reversible capacity and the capacity retention of the P2-type cathode material were remarkably improved as the P2-O2 phase transition was thus suppressed during cycling. This strategy might also be applicable to the modulation of the physical and chemical properties of layered oxides and provides new insight into the rational design of high-capacity and highly stable cathode materials for SIBs. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/35280]  |
| 专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Peng-Fei,You, Ya,Yin, Ya-Xia,et al. Suppressing the P2-O2 Phase Transition of Na0.67Mn0.67Ni0.33O2 by Magnesium Substitution for Improved Sodium-Ion Batteries[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2016,55(26):7445-7449. |
| APA | Wang, Peng-Fei.,You, Ya.,Yin, Ya-Xia.,Wang, Yue-Sheng.,Wan, Li-Jun.,...&Guo, Yu-Guo.(2016).Suppressing the P2-O2 Phase Transition of Na0.67Mn0.67Ni0.33O2 by Magnesium Substitution for Improved Sodium-Ion Batteries.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,55(26),7445-7449. |
| MLA | Wang, Peng-Fei,et al."Suppressing the P2-O2 Phase Transition of Na0.67Mn0.67Ni0.33O2 by Magnesium Substitution for Improved Sodium-Ion Batteries".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 55.26(2016):7445-7449. |
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来源：化学研究所
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