LiFePO_4的制备、结构与电性能研究

CORC > 厦门大学 > 2006年第12卷

	LiFePO_4的制备、结构与电性能研究; The Synthesis,Structure and Electrochemical Performances of Lithium Iron Phosphate
	谢辉 ; 周震涛 ; XIE Hui
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract8776.shtml
	2006-11-28
关键词	锂离子电池正极材料磷酸铁锂高温性能 Lithium-ion batteries Cathode material Lithium iron phosphate High temperature performances
英文摘要	应用高速球磨-高温固相反应法于不同煅烧温度(400~700℃)下合成L iFePO4锂离子电池正极材料,X-射线衍射、扫描电镜和恒电流充放电等测试表明,煅烧温度对合成的L iFePO4晶体结构、表观形貌以及电化学性能均有很大影响;经600℃煅烧得到的L iFePO4样品具有良好的充放电性能,以0.1C倍率充放电,首次放电比容量为128.8 mAh/g,第15次放电比容量为129.1 mAh/g,充放电效率在99.7%以上;其高温充放电性能亦佳.; The lithium iron phosphate cathode materials were synthesized by solid-state reaction combined high-rate ball milling under the temperature ranging from 400 ℃ to 700 ℃.The crystalline structure,morphology of particles,and electrochemical performance of the sample were investigated by X-ray diffraction,scanning electron microscopy and charge-discharge test.The results showed that the sintering temperature had great influences on the crystal structure,morphology and electrochemical performances of LiFePO_(4).The sample synthesized under 600℃ showed the best charge-discharge performances with the first specific discharge capacity of(128.8) mAh/g and the 15~(th) specific discharge capacity of 129.1 mAh/g at 0.1C rate,each charge-discharge cycling efficiency being 99.7%.Also the sample showed good electrochemical performances under higher temperatures.; 作者联系地址：电子科技大学中山学院化学与生物系,华南理工大学材料科学与工程学院广东中山528402,华南理工大学材料科学与工程学院广东广州510640,广东广州510640; Author's Address: 1,2*,ZHOU Zhen-tao~21.Department of Chemistry and Biology,Zhongshan Institute,University of Electronic Science & Technology of China,Zhongshan 528402,Guangdong,China,2.College of Material Science & Engineering,South-China University of Technology,Guangzhou 510640,Guangdong,China
语种	中文
出版者	厦门大学《电化学》编辑部
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/57952]
专题	2006年第12卷
推荐引用方式 GB/T 7714	谢辉,周震涛,XIE Hui. LiFePO_4的制备、结构与电性能研究, The Synthesis,Structure and Electrochemical Performances of Lithium Iron Phosphate[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract8776.shtml,2006.
APA	谢辉,周震涛,&XIE Hui.(2006).LiFePO_4的制备、结构与电性能研究.http://electrochem.xmu.edu.cn/CN/abstract/abstract8776.shtml.
MLA	谢辉,et al."LiFePO_4的制备、结构与电性能研究".http://electrochem.xmu.edu.cn/CN/abstract/abstract8776.shtml (2006).