New Insight in Understanding Oxygen Reduction and Evolution in Solid-State Lithium Oxygen Batteries Using an in Situ Environmental Scanning Electron Microscope

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	New Insight in Understanding Oxygen Reduction and Evolution in Solid-State Lithium Oxygen Batteries Using an in Situ Environmental Scanning Electron Microscope
	Zheng, H ; Xiao, DD ; Li, X ; Liu, YL ; Wu, Y ; Wang, JP ; Jiang, KL ; Chen, C ; Gu, L ; Wei, XL ; Hu, YS ; Chen, Q ; Li, H
刊名	NANO LETTERS
	2014
卷号	14 期号:8 页码:4245
关键词	Lithium-oxygen battery in situ ESEM lithium peroxide decomposition electron transport
ISSN号	1530-6984
通讯作者	Gu, L (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	Via designing a facile microscale all-solid-state lithium oxygen battery system constructed in an environmental scanning electron microscope, direct visualization of discharge and charge processes of the lithium oxygen battery is achieved. Different morphologies of the discharge product are observed, including a sphere, conformal film, and red-blood-cell-like shape, with a particle size up to 1.5 mu m; whereas upon charge, the decomposition initiates at their surface and continues along a certain direction, instead of from the contact point at the electrode. These new findings indicate that the electron and lithium ion conductivities of Li2O2 could support the growth and decomposition of the discharge product in our system. In addition, our results indicate that various morphologies of Li2O2 arise from the different current density and surface chemistry of CNT, and the growth and decomposition of the particle are related to the uneven distribution of the ionic and electronic conductivities of Li2O2.
资助信息	973 project [2014CB932300, 2012CB932900]; NSFC [51325206, 51222210, 11174334, 11374022, 61371001]
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/311004/59339]
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	Zheng, H,Xiao, DD,Li, X,et al. New Insight in Understanding Oxygen Reduction and Evolution in Solid-State Lithium Oxygen Batteries Using an in Situ Environmental Scanning Electron Microscope[J]. NANO LETTERS,2014,14(8):4245.
APA	Zheng, H.,Xiao, DD.,Li, X.,Liu, YL.,Wu, Y.,...&Li, H.(2014).New Insight in Understanding Oxygen Reduction and Evolution in Solid-State Lithium Oxygen Batteries Using an in Situ Environmental Scanning Electron Microscope.NANO LETTERS,14(8),4245.
MLA	Zheng, H,et al."New Insight in Understanding Oxygen Reduction and Evolution in Solid-State Lithium Oxygen Batteries Using an in Situ Environmental Scanning Electron Microscope".NANO LETTERS 14.8(2014):4245.