Yttrium-Doped SnO2 Prepared by Co-Precipitation Method for Lithium-Ion Battery Anodes

摘要：

SnO<,2> doped with Y were prepared by co- precipitation method and tested in lithium-ion cells. The structure and morphology of the materials were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). XRD patterns presented that the all the as-prepared materials had tetragonal rutile structure but a second phase (Y<,2> O<,3>) was observed when Y content reached 4％. TEM micrograph indicated that Y doped SnO<,2> had a small particle size ranging from 20 to 25nm. The electrochemical properties for an anode active material in lithium-ion batteries were investigated at room temperature, including the observed capacity involved in the first-discharge and the reversible capacity values during subsequent charge-discharge cycles. The as-prepared Y-doped SnO<,2> exhibited promising electrochemical properties as anodes for lithium-ion batteries.

关键词： Y-doped SnO<,2> co-precipitation method anode material lithium-ion battery rare earths

作者: Li Chao(李超) Bi Lei(毕磊) Fang Shaoming(方少明) Xu Jiaqiang(徐甲强) Wu Shide(吴诗德) Xie Bing(谢冰) Chen Rongfeng(陈荣峰)

作者单位: Henan Province Key Laboratory of Surface & Interface Science, Zhengzhou University of Light Industry Henan Province Key Laboratory of Surface & Interface Science, Zhengzhou University of Light Industry Henan Province Key Laboratory of Surface & Interface Science,Zhengzhou University of Light Industry, Henan Academy of Sciences, Zhengzhou 450002, China

会议类型: 国际会议

会议名称: 第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)

会议地点: 包头

会议语种:英文

页码: 508-511

在线出版日期: 2007-08-07（万方平台首次上网日期，不代表论文的发表时间）