期刊
CARBON
卷 125, 期 -, 页码 375-383出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2017.09.080
关键词
NiCo2O4@ C/carbon cloth composite; Physical vapor deposition; Anodes; Sodium/lithium ion storage; Electrochemical performance
资金
- Research Fund for the Doctoral Program of Higher Education of China [20136102110046]
- Innovation Foundation of Shanghai Aerospace Science and Technology [SAST2016114]
- Natural Science Foundation of Shaanxi Province [2015JZ014]
With the advent of flexible electronics, flexible secondary rechargeable batteries have attracted considerable attentions as a promising power source in the new generation of flexible electronics such as roll-up displays, smart electronics, and implantable medical devices. In this work, we report the fabrication of 3D NiCo2O4 arrays on carbon cloth as a binder-free anode for sodium/lithium ion storage. Amorphous carbon layer is used to modify the surface of NiCo2O4 arrays by physical vapor deposition (PVD). The electrochemical performance measurements demonstrate that the amorphous carbon layer can improve the electrochemical stability of NiCo2O4. The NiCo2O4@ C/carbon cloth electrode exhibits a high reversible capacity of 749.9 mAh g(-1), stable cycling with more than 535.47 mAh g(-1) at 500 mA g(-1) over 100 cycles and impressive rate capability (318 mAh g(-1) at 5 A g(-1) over 700 cycles) for SIBs and excellent electrochemical performance for LIBs (reversible capacity of 807.63 mAh g(-1) were observed for 100 cycles). (C) 2017 Elsevier Ltd. All rights reserved.
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