气候变化领域集成服务门户(CCPortal): Visualization and quantification of electrochemical and mechanical degradation in li ion batteries

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DOI	10.1126/science.1241882
	Visualization and quantification of electrochemical and mechanical degradation in li ion batteries
	Ebner M.; Marone F.; Stampanoni M.; Wood V.
发表日期	2013
ISSN	0036-8075
起始页码	716
结束页码	720
卷号	342 期号:6159
英文摘要	High-energy-density materials that undergo conversion and/or alloying reactions hold promise for next-generation lithium (Li) ion batteries. However, these materials experience substantial volume change during electrochemical operation, which causes mechanical fracture of the material and structural disintegration of the electrode, leading to capacity loss. In this work, we use x-ray tomography during battery operation to visualize and quantify the origins and evolution of electrochemical and mechanical degradation. Tomography provides the time-resolved, three-dimensional chemical composition and morphology within individual particles and throughout the electrode. In the model material tin(II) oxide, we witness distributions in onset and rate of core-shell lithiation, crack initiation and growth along preexisting defects, and irreversible distortion of the electrode, highlighting tomography as a tool to guide the development of durable materials and strain-tolerant electrodes.
英文关键词	tin oxide; chemical composition; degradation; electrode; ion; tomography; visualization; volume change; X-ray; article; chemical composition; degradation; electric battery; electrochemical degradation; lithiation; lithium ion battery; mechanical degradation; priority journal
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243598
作者单位	Laboratory for Nanoelectronics, ETH Zurich, Gloriastrasse 35, CH-8092, Switzerland; Swiss Light Source, Paul Scherrer Institut, CH-5232, Switzerland; Institute for Biomedical Engineering, University of Zurich, ETH Zurich, Gloriastrasse 35, CH-8092, Switzerland
推荐引用方式 GB/T 7714	Ebner M.,Marone F.,Stampanoni M.,et al. Visualization and quantification of electrochemical and mechanical degradation in li ion batteries[J],2013,342(6159).
APA	Ebner M.,Marone F.,Stampanoni M.,&Wood V..(2013).Visualization and quantification of electrochemical and mechanical degradation in li ion batteries.Science,342(6159).
MLA	Ebner M.,et al."Visualization and quantification of electrochemical and mechanical degradation in li ion batteries".Science 342.6159(2013).