Characterization of the SEI on a Carbon Film Electrode by Combined EQCM and Spectroscopic Ellipsometry
Open Access
- 1 January 2003
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 150 (2) , A229-A233
- https://doi.org/10.1149/1.1538223
Abstract
The electrochemical quartz crystal microbalance (EQCM) and cyclic voltammetry have been applied simultaneously to characterize electron-beam deposited carbon film electrodes in LiClO4LiClO4 -containing mixed electrolytes of ethylene carbonate (EC) and dimethyl carbonate (DMC). The structure of the carbon electrode was found to be amorphous/disordered using Raman spectroscopy. Cyclic voltammetry in LiClO4/EC+DMCLiClO4/EC+DMC demonstrated features typical of Li intercalation/deintercalation into/from the disordered carbon electrode, and EQCM showed a corresponding mass increase/decrease. Combined EQCM and spectroscopic ellipsometry data were compared, and the solid electrolyte interphase density after the first cycle in LiClO4/EC+DMCLiClO4/EC+DMC was estimated to be 1.3 g/cm3.g/cm3. © 2003 The Electrochemical Society. All rights reserved.Keywords
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