期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 161, 期 14, 页码 A2175-A2181出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0661414jes
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资金
- Batteries for Advanced Transportation Technologies (BATT) program of the U.S. Department of Energy
An accurate assessment of the electronic conductivity of electrodes is necessary for understanding and optimizing battery performance. The bulk electronic conductivity of porous LiCoO2-based cathodes was measured as a function of porosity, pressure, carbon fraction, and the presence of an electrolyte. The measurements were performed by delamination of thin-film electrodes from their aluminum current collectors and by use of a four-line probe. FIB/SEM (focused ion beam/scanning electron microscope) imaging was used to correlate the electrode microstructure to electronic conductivity. The introduction of electrolyte to dry electrodes reduced electronic conductivity by around 60%. (C) The Author(s) 2014. Published by ECS. All rights reserved.
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