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利用電紡絲合成磷酸鋰鐵/碳複合材料 = Synthesis LiFePO...

國立高雄大學電機工程學系--工業技術整合產業研發碩士專班

利用電紡絲合成磷酸鋰鐵/碳複合材料 = Synthesis LiFePO4/C Composited through the Electrospinning Method

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	Synthesis LiFePO4/C Composited through the Electrospinning Method
作者:	葉順茂,
其他團體作者:	國立高雄大學
出版地:	[高雄市]
出版者:	撰者;
出版年:	2012[民101]
面頁冊數:	78面圖，表 : 30公分;
標題:	單晶奈米
標題:	single crystal
電子資源:	http://handle.ncl.edu.tw/11296/ndltd/51531521830651827685
附註:	參考書目：面75-78
摘要註:	本研究成功地製作出單晶奈米等級的磷酸鋰鐵/碳複合材料，經由電紡絲工法與溶膠法可以製造出奈米尺寸的磷酸鐵/碳的絲狀材料，電紡絲的材料是由聚乙烯醇（PVA）的水溶液和磷酸鐵鋰前驅液均勻混合成溶膠溶液。變更電紡參數如溶膠溶液注射速率、燒結溫度和濃度，可得到不同特性的纖維材料。所得奈米尺寸的材料特性經由X-ray 繞射分析 (XRD)、掃描式電子顯微鏡分析 (SEM) 、穿透式電子顯微鏡分析 (TEM) 進行檢測驗證其材料特性。透過靜電紡絲的方法成功地合成了包覆在外層奈米尺寸的無晶形碳，經 TEM 檢測顯示無晶形碳層均勻被覆在磷酸鐵鋰表面，而且並不會影響 LiFePO4 的結晶性。XRD 結果顯示，燒結後得到純相的 LiFePO4 的結晶（500℃，600℃，700° C）並且無雜質產生。以 SEM 觀察電紡絲與煅燒後的產物，電紡絲法可以成功的組成磷酸鋰鐵/聚乙烯奈米等級結構，而減少 PVA 的濃度也會降低碳被覆層的厚度。 The single crystal nano-scale LiFePO4/C was successfully synthesized through an electrospinning method. LiFePO4/C nanowire materials were synthesized by using a electrospinning and sol-gel method. The mixture of the polyvinyl alcohol (PVA) and precursor of LiFePO4 was used as the electronspinning material. The desired characteristics were obtained by different setting parameters of the electron spinning conditions (injection rate, sintered temperature and concentration). The nano-scale size were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM).The outer nano-scale layer of amorphous carbon was successfully synthesized using the electrospinning method. TEM micrographs show amorphous carbon layer which was evenly coated on the LiFePO4 and would not influence the crystallization of LiFePO4.The XRD results show that crystallization of LiFePO4 proceeded after sintering ( 500°C、600°C、700°C) and free of impurity.The SEM analysis reveals that the LiFePO4 /PVA nano-structure was successfully synthesized. Decrease in the PVA concentration decreased the thickness of carbon coating layer.

利用電紡絲合成磷酸鋰鐵/碳複合材料 = Synthesis LiFePO4/C Composited through the Electrospinning Method
葉, 順茂

利用電紡絲合成磷酸鋰鐵/碳複合材料 = Synthesis LiFePO4/C Composited through the Electrospinning Method / 葉順茂撰 - [高雄市] : 撰者, 2012[民101]. - 78面 ; 圖，表 ; 30公分.
參考書目：面75-78.
單晶奈米single crystal

利用電紡絲合成磷酸鋰鐵/碳複合材料 = Synthesis LiFePO4/C Composited through the Electrospinning Method
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