4.5 Article

Two-Dimensional Layered BiOX (X = Cl, Br) Compounds as Anode Materials for Lithium-Ion Batteries

期刊

ENERGY TECHNOLOGY
卷 3, 期 11, 页码 1115-1120

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.201500161

关键词

bismuth oxide; electrochemistry; halogens; layered materials; lithium-ion batteries

资金

  1. Henan Joint Funds of the National Natural Science Foundation of China [U1404506]
  2. National Natural Science Foundation of China [51502146]
  3. Natural Science Foundation of Henan Department of Science Technology [142102210477]
  4. Natural Science Foundation of Henan Department of Education [14A150021]
  5. Natural Science Foundation of Nanyang Normal University [ZX2014039]
  6. Graduate Innovation Fundation of Nanyang Normal University [2015CX005]

向作者/读者索取更多资源

Many layered structure nanomaterials have been suggested as promising electrode materials for lithium-ion batteries. Ternary layered compounds, BiOX (X=Cl, Br) are usually used as photocatalysts for energy generation and environmental protection. However, there has not been a report of BiOX as electrode materials for lithium-ion batteries to this point. In this study, two-dimensional BiOX nanosheets are synthesized using a hydrothermal method, and electrochemical measurements show that layered BiOX can display remarkable electrochemical performance for use as an anode in lithium-ion batteries. Capacities of approximately 254 and 230 mAhg(-1) are maintained after 15 cycles at a current density of 500 mAg(-1) for BiOCl and BiOBr, respectively. The electrochemical properties are much better than that of BiOI (137 mAhg(-1)). Study of the mechanism reveals that Li3OX (X=Cl, Br) and Li3Bi are formed after the lithium ions become embedded in the layered BiOX.

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