CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Influence of Structural Imperfection on Electrochemical Behavior of Prussian Blue Cathode Materials for Sodium Ion Batteries
Yang, Y; Liu, ES; Yan, XM; Ma, CR; Wen, W; Liao, XZ; Ma, ZF; Ma, ZF (reprint author), Shanghai Jiao Tong Univ, Shanghai Electrochem Energy Devices Res Ctr, Dept Chem Engn, Shanghai 200240, Peoples R China.
2016
Source PublicationJOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN0013-4651
Volume163Issue:9Pages:A2117-A2123
Subtype期刊论文
AbstractPrussian 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.
DOI10.1149/2.0031610jes
Indexed BySCI
Language英语
WOS IDWOS:000388988100043
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/26541
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorLiao, XZ; Ma, ZF (reprint author), Shanghai Jiao Tong Univ, Shanghai Electrochem Energy Devices Res Ctr, Dept Chem Engn, Shanghai 200240, Peoples R China.
Recommended Citation
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.
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