期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 158, 期 8, 页码 A982-A990出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3604759
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资金
- U.S. Department of Energy [DE-AC05-00OR22725]
- Vehicle Technologies Program for the Office of Energy Efficiency and Renewable Energy
- Office of Science, Basic Energy Sciences Program, Division of User Facilities
Spatial variability of ionic transport on the polycrystalline LiCoO2 surface is studied on the similar to 10 nanometer level by time-resolved electrochemical strain spectroscopy (ESM). Strong variability between ESM signal relaxation and hence ionic transport at the grain boundaries and within the grains is observed. The relationship between relaxation and ESM hysteresis loop formation is established. The use of these strain measurements allows ionic transport be probed on the nanoscale, and suggests enormous potential for probing ionic materials and devices including batteries and fuel cells. (C) 2011 The Electrochemical Society. [DOI: 10.1149/1.3604759] All rights reserved.
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