Abstract
A new anode material of Sn-Ti thin film was successfully prepared by magnetron co-sputtering of two separate targets at the atmosphere of Ar at normal temperature. The structure, surface morphology, and electrochemical performance of the Sn-Ti thin film electrodes are examined by X-ray diffraction spectroscopy, scanning electron microscopy, and electrochemical tests. Furthermore, the effects on the electrochemical performance of the Ti content in the Sn-Ti thin films are studied. Results show that increasing the power of Ti target can improve the cyclic performance of Sn-Ti thin film electrodes. It is very interesting that no any cracks or material pulverization are observed on these Sn-Ti thin films, which indicate that the Ti can improve the stability of Sn-based anode materials. Such improved electrochemical properties benefit from the good mechanical support by Ti and uniform Ti doping.
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