Citation: QIN Hai-Ying, XIE Jian, MI Jian-Li, TU Jian, ZHAO Xin-Bing. Solvothermal Synthesis and Electrochemical Lithiation/Delithiation Performance of FeSb2 Nanorods[J]. Acta Physico-Chimica Sinica, ;2006, 22(12): 1555-1559. doi: 10.3866/PKU.WHXB20061224
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FeSb2 nanorods, as a potential anode material for lithium-ion batteries, were prepared by solvothermal method in the present work. High-resolution transmission electron microscopy (HRTEM) observations show that the FeSb2 nanorods are 20~40 nm in diameter and 0.2~1.0 μm in length. The charge-discharge measurements and cyclic voltammetry tests reveal that the FeSb2 nanorods exhibit the high initial reversible capacity of 543 mAh•g−1 and an approving cycling stability with 353 mAh•g−1 after 10 cycles. Although the initial coulomb efficiency of the FeSb2 nanorods is only 64%, it is better than that of FeSb2 nano-particles and maintains at 90% after 10 cycles. However, the FeSb2 nanorods could be pulverized and cracked during the cyclic voltammetry test resulting in the failure of the electrode.
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