期刊
MATERIALS LETTERS
卷 213, 期 -, 页码 193-196出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2017.11.061
关键词
Composite materials; Corrosion; Energy storage and conversion; Sodium-ion batteries; Nickelous sulphide
资金
- Natural Science Foundation of China [NSFC 51672158, 51772169, 51572151, 51402168]
- Outstanding Youth Science and Technology Innovation Team Project of Hubei Educational Committee [T201603]
Acicular NiS on Ni foam was successfully prepared via a low temperature sulfuration method, using Ni foam as raw material. The as-prepared NiS-Ni electrode exhibits superior electrochemical performance as freestanding anode for half-cell and full-cell sodium-ion batteries. At a specific current of 0.03 A g(-1), it delivers initial discharge and charge capacities of 1368.8 and 813.6 mAh g(-1), maintaining of 504.8 and 497.4 mAh g(-1) after 50 cycles. After 50 cycles at various specific current from 0.05 to 0.4 A g(-1), the discharge capacity can restore to 570.6 mAh g(-1) when reverting specific current to 0.05 A g(-1). When matching with Na3V2(PO4)(3) cathode, the full cell shows charge and discharge capacities of 172.8 and 163.5 mAh g(-1) after 100 cycles at a specific current of 0.05 A g(-1). (C) 2017 Elsevier B.V. All rights reserved.
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