Influence of Structural Imperfection on Electrochemical Behavior of Prussian Blue Cathode Materials for Sodium Ion Batteries
文献类型：期刊论文
| 作者 | Yang, Y; Liu, ES; Yan, XM; Ma, CR; Wen, W; Liao, XZ; Ma, ZF |
| 刊名 | JOURNAL OF THE ELECTROCHEMICAL SOCIETY
 |
| 出版日期 | 2016 |
| 卷号 | 163期号:9页码:A2117-A2123 |
| ISSN号 | 0013-4651 |
| 通讯作者 | Liao, XZ ; Ma, ZF (reprint author), Shanghai Jiao Tong Univ, Shanghai Electrochem Energy Devices Res Ctr, Dept Chem Engn, Shanghai 200240, Peoples R China. |
| 英文摘要 | Prussian blue compounds (PBs) have been intensely studied as promising cathode materials for sodium ion batteries due to their rigid open framework which benefits Na+ insertion/extraction. However, the existence of Fe(CN)(6) vacancies occupied by coordinating H2O in the framework has great influence on the electrochemical performance. In this work, we prepared PB compounds using simple solution precipitation method at 0 degrees C, 40 degrees C and 80 degrees C, respectively. The obtained Na1.73Fe[Fe(CN)(6)](0.98)square(0.02) (PB0), Na1.27Fe[Fe(CN)(6)](0.94)square(0.06) (PB40) and Na1.12Fe[Fe(CN)(6)](0.92)square(0.08) (PB80) samples were investigated to clarify the effects of Fe(CN) 6 vacancies and the coordinating H2O molecules on the electrochemical behavior. CV tests indicated that coordinating H2O could be gradually extracted and attend side reaction at near 4.0V, which led to impedance growth and caused capacity decrease during cycling. Dehydrated PB samples showed increased reversible capacities. However, the cycling stability of the PBs mainly depended on the perfection of the lattice structure. Low defect structure Na1.73Fe[Fe(CN)(6)](0.98)square(0.02) exhibited superior cycling stability with initial reversible capacity of 105 mAh g(-1) (100 mA g(-1)) and intact cubic phase lattice structure during long term cycling. Dehydrated Na1.73Fe[Fe(CN)(6)](0.98)square(0.02) showed further improved reversible capacities of 123 mAh g(-1) (100 mA g(-1)) with 73% capacity retention after 200 cycles. (C) 2016 The Electrochemical Society. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000388988100043 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/26541]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Yang, Y,Liu, ES,Yan, XM,et al. Influence of Structural Imperfection on Electrochemical Behavior of Prussian Blue Cathode Materials for Sodium Ion Batteries[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2016,163(9):A2117-A2123. |
| APA | Yang, Y.,Liu, ES.,Yan, XM.,Ma, CR.,Wen, W.,...&Ma, ZF.(2016).Influence of Structural Imperfection on Electrochemical Behavior of Prussian Blue Cathode Materials for Sodium Ion Batteries.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,163(9),A2117-A2123. |
| MLA | Yang, Y,et al."Influence of Structural Imperfection on Electrochemical Behavior of Prussian Blue Cathode Materials for Sodium Ion Batteries".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 163.9(2016):A2117-A2123. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。