Yttrium-Doped SnO2 Prepared by Co-Precipitation Method for Lithium-Ion Battery Anodes
来源期刊：Journal of Rare Earths2007年第S1期
论文作者：李超 毕磊 方少明 徐甲强 吴诗德 谢冰 陈荣峰
文章页码：508 - 511
摘 要：SnO2 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 （Y2O3） was observed when Y content reached 4%. TEM micrograph indicated that Y doped SnO2 had a small particle size ranging from 20 to 25 nm. 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 SnO2 exhibited promising electrochemical properties as anodes for lithium-ion batteries.
李超，毕磊，方少明，徐甲强，吴诗德，谢冰，陈荣峰
摘 要：SnO2 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 （Y2O3） was observed when Y content reached 4%. TEM micrograph indicated that Y doped SnO2 had a small particle size ranging from 20 to 25 nm. 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 SnO2 exhibited promising electrochemical properties as anodes for lithium-ion batteries.
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