Synthesis of Na2MnPO4F/C with Different Carbon Sources and Their Performances as Cathode for Lithium Ion Battery

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	Synthesis of Na2MnPO4F/C with Different Carbon Sources and Their Performances as Cathode for Lithium Ion Battery
	Zhong Yan-Jun ; Li Jun-Tao ; Wu Zhen-Guo ; Zhong Ben-He ; Guo Xiao-Dong ; Huang Ling ; Sun Shi-Gang ; Huang L(黄令) ; Sun SG(孙世刚)
刊名	http://dx.doi.org/10.3866/PKU.WHXB201306181
	2013
关键词	VANADIUM FLUOROPHOSPHATE ELECTROCHEMICAL INTERCALATION RECHARGEABLE BATTERY HYDROTHERMAL METHOD LI LIFEPO4 NA
英文摘要	National Natural Science Foundation of China [50574063, 21021002, 21003102]; Sichuan University Funds for Young Scientists, China [2011SCU11081]; Research Fund for the Doctoral Program of Higher Education, the Ministry of Education, China [20120181120103]; Na2MnPO4F/C composites were synthesized by wet ball milling and in situ pyrolytic carbon coating. Stearic acid, citric acid, poly(ethylene glycol) 6000, and beta-cyclodextrin were used as carbon sources in the synthesis process. The structures, morphologies, and electrochemical performances of the as-synthesized Na2MnPO4F/C composites were further investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller surface area analysis, and galvanostatic charge-discharge tests. Distinct differences were observed in the morphologies and sizes of the Na2MnPO4F/C particles obtained from different carbon sources, and this significantly affected their electrochemical performances. It was found that the primary particle size of the Na2MnPO4F/C material is a key factor in the electrochemical performance. The sample synthesized using citric acid as the carbon source had a micro-nano structure, with the smallest primary particle size of 10-40 nm, and displayed the best electrochemical properties. It delivered an initial discharge capacity of 80 mAh.g(-1) under a current density of 5 mA.g(-1) in the voltage range of 1.5-4.8 V, and displayed good cycling performance.
语种	英语
出版者	PEKING UNIV PRESS
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/88920]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Zhong Yan-Jun,Li Jun-Tao,Wu Zhen-Guo,et al. Synthesis of Na2MnPO4F/C with Different Carbon Sources and Their Performances as Cathode for Lithium Ion Battery[J]. http://dx.doi.org/10.3866/PKU.WHXB201306181,2013.
APA	Zhong Yan-Jun.,Li Jun-Tao.,Wu Zhen-Guo.,Zhong Ben-He.,Guo Xiao-Dong.,...&孙世刚.(2013).Synthesis of Na2MnPO4F/C with Different Carbon Sources and Their Performances as Cathode for Lithium Ion Battery.http://dx.doi.org/10.3866/PKU.WHXB201306181.
MLA	Zhong Yan-Jun,et al."Synthesis of Na2MnPO4F/C with Different Carbon Sources and Their Performances as Cathode for Lithium Ion Battery".http://dx.doi.org/10.3866/PKU.WHXB201306181 (2013).