| 一维棒状ZnO的制备及电化学嵌锂性能研究 | |
| Synthesis and Electrochemical Lithium Insertion of the Rod-like ZnO | |
| 摘要: | |
| 关键词: 水热法 ZnO 超细棒 锂离子电池 | |
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| Abstract: In this work, we report the synthesis of ZnO ultrafine-rods with aspect ratio of about 10 via hydrothermal method. The as-prepared rod-like ZnO are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). And the electrochemical performance of the ZnO material for Li-ion insertion and extraction is also investigated. It is found that the initial discharge capacity of 1 277 mAh·g-1 and the high reversible capacity of 766 mAh·g-1 with low Li-ion insertion potential are obtained although the cyclic stability is relatively poor. The ZnO electrode after charging is characterized by X-ray diffraction, and only metallic Zn peaks with rod-like morphology are detected. The CV measurements prove the serial formation of Li-Zn alloys during discharging and charging process. | |
| Keywords: hydrothermal method ZnO ultrafine-rods lithium-ion battery | |
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| 郑占丰,高学平,潘桂玲,鲍建莉,曲金秋,吴 锋,宋德瑛.一维棒状ZnO的制备及电化学嵌锂性能研究[J].无机化学学报,2004,20(4):488-492. | |
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