材料科学
纳米线
锡
电极
阳极
插层(化学)
氧化锡
透射电子显微镜
氧化物
电化学
纳米技术
化学工程
无机化学
冶金
化学
物理化学
工程类
作者
Jianyu Huang,Li Zhong,Chong Min Wang,John P. Sullivan,Wu Xu,Liqiang Zhang,Scott X. Mao,Nicholas S. Hudak,Xiao Hua Liu,Arunkumar Subramanian,Hongyou Fan,Liang Qi,Akihiro Kushima,Li Ju
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2010-12-10
卷期号:330 (6010): 1515-1520
被引量:1410
标识
DOI:10.1126/science.1195628
摘要
Fragile Tin Oxide Electrodes While tin oxide has a high energy density, and would thus make an attractive anode material for a Li-ion battery, it undergoes significant volume changes when Li is intercalated. The large strains cause cracking, pulverization, and a resultant loss of electrical conduction. Huang et al. (p. 1515 ; see the Perspective by Chiang ) used in situ transmission electron microscopy on a single tin oxide nanowire to identify the physical changes that occur during intercalation and observed a moving cloud of dislocations that separated the reacted and unreacted sections. Upon completion of the electrochemical charging, the nanowire showed up to 90% elongation and a 35% increase in diameter.
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