| Summary: | 碩士 === 中興大學 === 材料工程學系所 === 95 === In this study, Sn and Sn/Li2O film has been successfully deposited on the stainless steel substrate in SnCl2 and SnCl2、LiNO3 mixed solutions by electrochemical method. The microstructure, morphology, and compositions of the materials were investigated by XRD, SEM/EDS, and ESCA. In addition, the electrochemical properties were investigated by CV analysis and charge/discharge cycle tests. Charge/discharge cycle tests demonstrated that Sn/Li2O film showed better cycle performance than pure Sn at the voltage range was 0.02 to 0.9 V and current density of 800 μA/cm2. The capacity of Sn/Li2O film by electrochemical method was still found 660 mAh/g after 50 cycle, and much higher than the capacity of the commercial graphite electrodes (372 mAh/g).
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