本研究透過不同原子比例混合SiO2-SnO2、SiO2-Fe2O3和SnO2-Fe2O3金屬氧化物粉末，作為鋰離子電池陽極活物，並藉由改變活物中不同氧化物的比例，用以探討活物比例和鋰離子電池效能表現之間的關係。
本研究利用掃描式電子顯微鏡 (Scanning Electron Microscopy) 觀察金屬氧化物製備電極之表面形貌，並使用能量散佈分析儀檢視金屬氧化物元素在電極上的分佈狀況，也使用X-ray繞射分析儀 (X-ray Diffraction) 檢測金屬氧化物製備之電極板，分析電極板上金屬氧化物的晶體結構。
本研究於電池循環壽命測試和交流阻抗量測中，分析了金屬氧化物在不同元素成分不同比例之下，用以作為鋰離子電池陽極材料之電性表現的評估，經比較得出，比例SiO2:SnO2:Fe2O3=1:1:3 (SiSnFe113)作為鋰離子電池陽極材料能夠有極佳的電性表現。
經實驗過後，SiSnFe113 在100 mA/g (0.1 C) 的充放電電流密度下，電容量約為950 mAh/g，並且1000 mA/g的充放電電流密度下仍然能夠保持約450 mAh/g的電容量，實驗初始經過100 mA/g (0.1 C) 的電流充放電二十圈後，200 mA/g (0.2 C)、500 mA/g (0.5 C)、1000 mA/g (1 C) 和2000 mA/g (2 C) 的速率各充放電十圈後，再將充放電速率調為將電流密度調整回100 mA/g跑五圈，以檢視其回復的能力 (Recovery)，此SiSnFe113電池在此情況下，在第六十五圈仍然可以保持電容量為814 mAh/g，即77% 的電容量保持率 (Capacity Retention)，顯示此SiSnFe113氧化物為一具潛力的鋰離子陽極材料。

In this work, different metal oxide systems, SiO2-SnO2, SiO2-Fe2O3 and SnO2-Fe2O3 with different ratios in compositions were prepared by ceramic processes. By varying the molar ratio of metal-oxide elements, the performance of different lithium-ion batteries fabricated by SiO2-SnO2, SiO2-Fe2O3 and SnO2-Fe2O3 materials was investigated to study the relationship between the composition of anode materials and the performance of lithium-ion batteries.
The morphology, composition distribution and the structure of electrodes fabricated in this work were characterized by field emission scanning electron microscope (FESEM), energy dispersive x-ray spectrometer (EDX) and X-ray diffraction (XRD).
The performance of fabricated batteries was measured by galvanostatic charge-discharge measurement (GCD) and electrochemical impedance spectroscopy (EIS) analyses.
After comparing the performance of all the batteries fabricated in these three systems, it shows that an active material with composition of SiO2:SnO2:Fe2O3=1:1:3 (SiSnFe113) is an potential anode material for lithium-ion batteries (LIBs).
This SiSnFe113 oxide can be utilized for LIBs applications as an anode material, showing a high reversible capacity of ~450 mAh/g while charging and discharging at a current density of 1000 mA/g and a capacity retention of 77% after being operated at a current density of 100 mA/g (0.1 C) for 20 cycles, 200 mA/g (0.2 C), 500 mA/g (0.5 C), 1000 mA/g (1 C) and 2000 mA/g (2 C) for 10 cycles respectively, and 100 mA/g for 5 cycles in the last step. It suggests that this SiSnFe113 oxide could be a potential anode material for lithium-ion batteries.

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