Experimental visualization of the diffusion pathway of sodium ions in the Na-3[Ti2P2O10F] anode for sodium-ion battery

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	Experimental visualization of the diffusion pathway of sodium ions in the Na-3[Ti2P2O10F] anode for sodium-ion battery
	Ma, ZH ; Wang, YS ; Sun, CW ; Alonso, JA ; Fernandez-Diaz, MT ; Chen, LQ
刊名	SCIENTIFIC REPORTS
	2014
卷号	4
ISSN号	2045-2322
通讯作者	Sun, CW (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing Key Lab New Energy Mat & Devices, Key Lab Renewable Energy,Inst Phys, Beijing 100190, Peoples R China.
中文摘要	Sodium-ion batteries have attracted considerable interest as an alternative to lithium-ion batteries for electric storage applications because of the low cost and natural abundance of sodium resources. The materials with an open framework are highly desired for Na-ion insertion/extraction. Here we report on the first visualization of the sodium-ion diffusion path in Na-3[Ti2P2O10F] through high-temperature neutron powder diffraction experiments. The evolution of the Na-ion displacements of Na-3[Ti2P2O10F] was investigated with high-temperature neutron diffraction (HTND) from room temperature to 600 degrees C; difference Fourier maps were utilized to estimate the Na nuclear-density distribution. Temperature-driven Na displacements indicates that sodium-ion diffusion paths are established within the ab plane. As an anode for sodium-ion batteries, Na-3[Ti2P2O10F] exhibits a reversible capacity of similar to 100 mAh g(-1) with lower intercalation voltage. It also shows good cycling stability and rate capability, making it promising applications in sodium-ion batteries.
资助信息	National Science Foundation of China (NSFC) [51372271, 51172275]; start up grant from Institute of Physics (IOP); Spanish Ministry of Economy and Competitiveness [MAT2013-41099-R]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59680]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Ma, ZH,Wang, YS,Sun, CW,et al. Experimental visualization of the diffusion pathway of sodium ions in the Na-3[Ti2P2O10F] anode for sodium-ion battery[J]. SCIENTIFIC REPORTS,2014,4.
APA	Ma, ZH,Wang, YS,Sun, CW,Alonso, JA,Fernandez-Diaz, MT,&Chen, LQ.(2014).Experimental visualization of the diffusion pathway of sodium ions in the Na-3[Ti2P2O10F] anode for sodium-ion battery.SCIENTIFIC REPORTS,4.
MLA	Ma, ZH,et al."Experimental visualization of the diffusion pathway of sodium ions in the Na-3[Ti2P2O10F] anode for sodium-ion battery".SCIENTIFIC REPORTS 4(2014).