Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 695, Issue -, Pages 632-637Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.11.135
Keywords
Biomass; Rape seed shuck; Anode; Sodium-ion batteries
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Funding
- National Natural Science Foundation of China [51672165]
- Innovation Team Assistance Foundation of Shaanxi Province [2013KCT-06]
- Scientific Special Foundation of Shaanxi Province Office of Education [15JK1074]
- Doctoral Initial Foundation [BJ14-16]
- 973 Special Preliminary Study Plan [2014CB260411]
- Graduate Innovation Fund of Shaanxi University of Science and Technology
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Hard carbon with large interlayer spacing is suitable as the anode material for sodium-ion batteries. Rape seed shuck derived lamellar hard carbon is synthesized through hydrothermal and pyrolysis processes. As the anode, it exhibited good cycling stability, delivering a capacity of 143 mAh g(-1) after 200 cycles at 100 mA g(-1). The promising performances are attributed to the sheet structure with expanded interlayer distance (0.39 nm) and much void which can lower the sodium-ion insertion-extraction barrier and promote Na-ion diffusion and storage. The effect of pyrolysis temperature on the performance is also investigated. (C) 2016 Elsevier B.V. All rights reserved.
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