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(Ti+Sn)O2固溶體應用於鋰離子電池負極研究

(Ti+Sn)O2 Solid Solution as the Anode Material for Lithium ion Battery

摘要


二氧化鈦經過化學處理與燒結後形成錫/二氧化鈦複合材料,並藉由掃描電子顯微鏡與X光繞射圖譜辨認表面形貌與晶體結構。結果顯示二氧化鈦經過錫修飾表面變的較緻密且結構在煅燒後轉變為固溶體,之後將此錫/二氧化鈦複合材料進行電池特性測試,結果指出錫修飾能有效地減少二氧化鈦的第一次充放電不可逆電容量約14.6%,並使錫/二氧化鈦複合材料具有約350(mAh g^(-1))的可逆電容量,且經50次循環後電容量仍維持在250(mAh g^(-1))左右。

關鍵字

二氧化鈦 鋰離子電池

並列摘要


Tin/TiO2 composites prepared by chemical treatment and calcination were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), cyclic voltammetry, electrochemical impedance spectroscopy, and half-cell tests. The SEM and XRD results show that Sn modified on TiO2 surface after 450℃ calcinations can form (SnTi)O2 solid solution. The electrochemical test results show that Sn modified on TiO2 can reduce the irreversible capacity in the first cycle. The (Ti+Sn)O2 composite has high reversible capacity around 350mAh g^(-1). After 50 discharging/charging cycles, the reversible capacity is around 250mAh g^(-1).

並列關鍵字

TiO2 tin Lithium ion battery

被引用紀錄


陳忠富(2016)。多尺度設計飛彈熱激發電池離子傳輸材料與熱電化學性能〔博士論文,國立清華大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0016-0901201710345632

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