A zero-strain layered metal oxide as the negative electrode for long-life sodium-ion batteries

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	A zero-strain layered metal oxide as the negative electrode for long-life sodium-ion batteries
	Wang, YS ; Yu, XQ ; Xu, SY ; Bai, JM ; Xiao, RJ ; Hu, YS ; Li, H ; Yang, XQ ; Chen, LQ ; Huang, XJ
刊名	NATURE COMMUNICATIONS
	2013
卷号	4
ISSN号	2041-1723
通讯作者	Hu, YS (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	Room-temperature sodium-ion batteries have shown great promise in large-scale energy storage applications for renewable energy and smart grid because of the abundant sodium resources and low cost. Although many interesting positive electrode materials with acceptable performance have been proposed, suitable negative electrode materials have not been identified and their development is quite challenging. Here we introduce a layered material, P2-Na-0.66[Li0.22Ti0.78]O-2, as the negative electrode, which exhibits only similar to 0.77% volume change during sodium insertion/extraction. The zero-strain characteristics ensure a potentially long cycle life. The electrode material also exhibits an average storage voltage of 0.75V, a practical usable capacity of ca. 100 mAh g(-1), and an apparent Na+ diffusion coefficient of 1 x 10(-10) cm(-2) s(-1) as well as the best cyclability for a negative electrode material in a half-cell reported to date. This contribution demonstrates that P2-Na-0.66 [Li0.22Ti0.78]O-2 is a promising negative electrode material for the development of rechargeable long-life sodium-ion batteries.
资助信息	'863' Project [2011AA11A235, 2009AA03310]; '973' Projects [2009CB220104, 2010CB833102, 2012CB932900]; NSFC [51222210, 11234013]; CAS project [KJCX2-YW-W26]; One Hundred Talent Project of the Chinese Academy of Sciences; Office of Vehicle Technologies [DEAC02-98CH10886]; US Department of Energy
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/56755]
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	Wang, YS,Yu, XQ,Xu, SY,et al. A zero-strain layered metal oxide as the negative electrode for long-life sodium-ion batteries[J]. NATURE COMMUNICATIONS,2013,4.
APA	Wang, YS.,Yu, XQ.,Xu, SY.,Bai, JM.,Xiao, RJ.,...&Huang, XJ.(2013).A zero-strain layered metal oxide as the negative electrode for long-life sodium-ion batteries.NATURE COMMUNICATIONS,4.
MLA	Wang, YS,et al."A zero-strain layered metal oxide as the negative electrode for long-life sodium-ion batteries".NATURE COMMUNICATIONS 4(2013).