Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 60, Issue -, Pages 74-77Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2015.08.014
Keywords
Na-ion batteries; Sb2Se3; Anode material; Conversion reaction; Alloying reaction
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Funding
- Natural Science Foundation of China [51307069]
- National Thousand Talents Program of China
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Carbon-coated Sb2Se3 composite (Sb2Se3@C) is prepared via high energy mechanical milling accompanied with planetary milling method and investigated as a novel anode for Na-ion batteries for the first time. It exhibits a high Na-storage capacity of 650 mAh g(-1) at 0.1 A g(-1), and maintains a reversible capacity of 624 mAh g(-1) with negligible capacity fading at 0.2 A g(-1) after 100 cycles, demonstrating a stable cycling performance. In addition, the ex situ XRD analysis reveals that the Na-storage mechanism of the Sb2Se3@C anode includes conversion reaction and alloying reaction. (C) 2015 Elsevier B.V. All rights reserved.
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