Effect of Mn2+-doping in LiFePO4 and the low temperature electrochemical performances

CORC > 新疆理化技术研究所 > 中国科学院新疆理化技术研究所 > 材料物理与化学研究室

	Effect of Mn2+-doping in LiFePO4 and the low temperature electrochemical performances
	Li Chengfeng; Hua Ning; Wang Chengyun; Kang Xueya; Tuerdi Wumair; Han Ying
刊名	Journal of Alloys and Compounds
	2011
卷号	509 期号:5 页码:1897-1900
关键词	Olivine compound Electrochemical performance Low temperature performance Chelation assisted method Mn2+-doping
ISSN号	9258388
英文摘要	Olivine composites LiFe1-xMnxPO4/C (x = 0, 0.05, 0.1) were prepared by chelation assisted mechanochemical activation method using C2H2O4 as the chelating reagent. The structures of the prepared composites were characterized by X-ray diffraction (XRD). Cyclic voltammetry, ac impedance spectroscopy, galvanostatic charge/discharge performances were studied at room temperature. The discharge capacity of LiFe0.95Mn0.05PO4 was 155.6 mAh g^-1 and 102.9 mAh g^-1 at 1 C and 10 C rate, respectively. The results indicated Mn²⁺-doping in LiFePO4 could effectively enhance the electrochemical performances of this olivine compound especially at high charge/discharge rate. In addition, charge/discharge method was also used to characterize the low temperature properties of the different samples. The results showed that the lower the operation temperature was, the poorer the performances were. Furthermore, ac impedance measurement was used to understand the factors of the poor performances at low temperature. © 2010 Elsevier B.V. All rights reserved.
学科主题	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
收录类别	SCI
WOS记录号	WOS:000287167700110
公开日期	2012-11-29
内容类型	期刊论文
源URL	[http://ir.xjipc.cas.cn/handle/365002/1448]
专题	新疆理化技术研究所_材料物理与化学研究室
作者单位	Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi Xinjiang 830011, Peoples R China;Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China;Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi Xinjiang 830011, Peoples R China
推荐引用方式 GB/T 7714	Li Chengfeng,Hua Ning,Wang Chengyun,et al. Effect of Mn2+-doping in LiFePO4 and the low temperature electrochemical performances[J]. Journal of Alloys and Compounds,2011,509(5):1897-1900.
APA	Li Chengfeng,Hua Ning,Wang Chengyun,Kang Xueya,Tuerdi Wumair,&Han Ying.(2011).Effect of Mn2+-doping in LiFePO4 and the low temperature electrochemical performances.Journal of Alloys and Compounds,509(5),1897-1900.
MLA	Li Chengfeng,et al."Effect of Mn2+-doping in LiFePO4 and the low temperature electrochemical performances".Journal of Alloys and Compounds 509.5(2011):1897-1900.