Abstract
Finely dispersed tin alloy/oxide composites were synthesized via the reduction of tin oxide by aluminum under high-energy ball-milling. The morphology and crystal structure of the resulting samples were investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). The electrochemical measurements reveal that Sn 3Co/Al 2O 3 composite has higher initial efficiency and better cycle performance than Sn/Al 2O 3. The Sn 3Co/Al 2O 3 composite electrode containing LA132 binder exhibited a reversible capacity about 540 mA h g −1 with good capacity retention. On the other hand, it is found that the influence of binder type on the electrode performance is remarkable.
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