期刊
NANO LETTERS
卷 10, 期 9, 页码 3420-3425出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl101439x
关键词
Li-ion battery; thin films; scanning probe microscopy
类别
资金
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [ERKCC61]
- Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy [CNMS2010-098, CNMS2010-099]
The electrical bias driven Li-ion motion in silicon anode materials in thin film,battery heterostructures is investigated using electrochemical strain microscopy (ESM), which is a newly developed scanning probe microscopy based characterization method. ESM utilizes the intrinsic link between bias-controlled Li-ion concentration and molar volume of electrode materials, providing the capability for studies on the sub-20 rim scale, and allows the relationship between Li-ion flow and microstructure to be established. The evolution of Li-ion transport during the battery charging is directly observed.
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