Ti_xSn_{1鈭?span style='font-style: italic'>x}O₃ solid solution as an anode material in lithium-ion batteries

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• 作者：Jingdan Yan^a ; ^c ; Huaihe Song^a ; ^{songhh@mail.buct.edu.cn} ; Huijuan Zhang^a ; Jiayan Yan^a ; Xiaohong Chen^a ; Feng Wang^a ; ^{wangf@mail.buct.edu.cn} ; Huiying Yang^b ; Manabu Gomi^c
• 关键词：SnO2 ; TiO2 ; Li-ion batteries ; Anode materials ; Solid solutions
• 刊名：Electrochimica Acta
• 出版年：2012
• 期刊代码：30_00134686
• 类别：ch
• 出版时间：30 June, 2012
• 卷：72
• 期：Complete
• 页码：186-191
• 文件大小：1785 K

摘要

Ti_xSn_1鈭?em>xO₃ solid solutions were prepared by a hydrothermal process. The morphologies and structures of Ti_xSn_1鈭?em>xO₃ solid solutions were investigated by scanning electron microscope, transmission electron microscope and X-ray diffraction measurements. The electrochemical properties of Ti_xSn_1鈭?em>xO₃ solid solution electrodes with different Sn/Ti ratios were examined by a variety of electrochemical testing methods. It was found that, the Ti_xSn_1鈭?em>xO₃ solid solution showed not only higher specific capacity of 506 mAh g^鈭? after 30 cycles but also better cycle performance, superior than the pure SnO₂ electrode, which can be ascribed to the stable cyclability of TiO₂ and the high reversible capacity of nanosized SnO₂. The Ti_xSn_1鈭?em>xO₃ solid solutions would be a potential candidate as anode material for a new generation lithium ion batteries.