Acta Phys. -Chim. Sin. ›› 2008, Vol. 24 ›› Issue (04): 681-685.doi: 10.3866/PKU.WHXB20080423

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Synthesis of Mesoporous SnO2 and Its Application in Lithium-Ion Battery

WANG Jian-Hua; LI Bin; WU Hai-Yan; GUO Yu-Zhong   

  1. Key Laboratory of Advanced Material of Yunnan Province, Kunming University of Science and Technology, Kunming 650093, P. R. China
  • Received:2007-10-23 Revised:2007-12-19 Published:2008-04-07
  • Contact: WANG Jian-Hua

Abstract: Mesoporous SnO2 was synthesized using a cationic surfactant cetytrimethylammonium bromide (CTAB) as template and tin chloride (SnCl4·5H2O) as inorganic precursor. The product was examined with X-ray diffraction (XRD), N2-adsorption/desorption isotherms (BET), and transmission electron microscopy (TEM). Electrochemical properties of the mesoporous SnO2 were measured as anode of lithium-ion battery. The results showed that a certain amount of ammonium was critical for fabricating of ordered mesoporous structure. OH - ions served as structure director, helping Sn(ClxBry )2- unit to assemble into liquid crystal and form the ordered mesoporous structure. Electrochemical measurements showed good capacity retaining ability in 40 cycles. Large irreversible capacity loss can be attributed to trapping of Li+ ion in the pores.

Key words: Mesoporous, Tin oxide, Lithium-ion battery


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