阳极
煅烧
喷雾干燥
材料科学
电化学
电池(电)
扫描电子显微镜
化学工程
钠
多孔性
离子
电极
复合材料
化学
催化作用
冶金
工程类
物理化学
功率(物理)
有机化学
物理
量子力学
生物化学
作者
Wei Zou,Jianwen Li,Qijiu Deng,Jing Xue,Xinyi Dai,Aijun Zhou,Jingze Li
标识
DOI:10.1016/j.ssi.2013.11.005
摘要
We report here the spherical Na2Ti3O7 synthesized by spray drying of the sol-gel prepared precursor suspension and followed by a solid-state calcination as advanced anode material for sodium-ion battery. Field-emission scanning electron microscopy analyses show the spherical powders consisting of well-crystallized Na2Ti3O7 primary particles surrounded three-dimensional porous structure. Electrochemical performance was investigated by charge/discharge measurement exhibiting the charge capacity of 93.1 mAh g− 1 even at current rate of 5C after 50th cycle. The electrochemical performance at high current rate is better than that of by a solid-state reaction method. Na2Ti3O7 synthesized by combing spraying-dry and sol-gel method is one of the promising candidates as the anode material of sodium-ion battery.
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