The Sn Co alloys with different atom ratio（2： 1, 4： 1, 8： 1） were prepared by solid-state reducing reaction through mechanical ball milling. The structure and morphology of the products were characterized by means of powder X-ray diffraction and scanning electron microscopy, the elctrochemical performance of the materials used as lithium intercalation anode was investigated using simulated test cells. The experimental results reveal that the nanostructured amorphous CoSn4 exhibite a relatively high initial discharge capacity （430 mAh/g） ...
