Characterization of the SEI on a carbon film electrode by combinedEQCM and spectroscopic ellipsometry

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The electrochemical quartz crystal microbalance (EQCM) andcyclic voltammetry have been applied simultaneously to characterizeelectron-beam deposited carbon film electrodes in LiClO4 orLiPF6-containing mixed electrolytes of ethylene carbonate (EC) anddimethyl carbonate (DMC). The structure of the carbon electrode was foundto be amorphous/disordered using Raman spectroscopy. Cyclic voltammetryin LiClO4 / EC+DMC demonstrated features typical of Liintercalation/deintercalation into/from the disordered carbon electrode,and EQCM showed a corresponding mass increase/decrease. Contrary to thecase of LiClO4 / EC+DMC electrolyte, LiPF6/EC+DMC electrolyte showed noLi deintercalation out of the thin-film carbon electrode. Combined EQCMand spectroscopic ellipsometry data were compared, and the solidelectrolyte interphase density after the first cycle in ... continued below

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Kwon, Kyungjung; Kong, Fanping; McLarnon, Frank & Evans, James W. January 1, 2002.

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The electrochemical quartz crystal microbalance (EQCM) andcyclic voltammetry have been applied simultaneously to characterizeelectron-beam deposited carbon film electrodes in LiClO4 orLiPF6-containing mixed electrolytes of ethylene carbonate (EC) anddimethyl carbonate (DMC). The structure of the carbon electrode was foundto be amorphous/disordered using Raman spectroscopy. Cyclic voltammetryin LiClO4 / EC+DMC demonstrated features typical of Liintercalation/deintercalation into/from the disordered carbon electrode,and EQCM showed a corresponding mass increase/decrease. Contrary to thecase of LiClO4 / EC+DMC electrolyte, LiPF6/EC+DMC electrolyte showed noLi deintercalation out of the thin-film carbon electrode. Combined EQCMand spectroscopic ellipsometry data were compared, and the solidelectrolyte interphase density after the first cycle in LiClO4 /EC+DMCwas estimated to be 1.3 g/cm3.

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  • Journal Name: Journal of the Electrochemical Society; Journal Volume: 150; Journal Issue: 2; Related Information: Journal Publication Date: 02/2003

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  • Report No.: LBNL--51482
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 917396
  • Archival Resource Key: ark:/67531/metadc882075

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 2002

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  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 13, 2016, 8:55 p.m.

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Kwon, Kyungjung; Kong, Fanping; McLarnon, Frank & Evans, James W. Characterization of the SEI on a carbon film electrode by combinedEQCM and spectroscopic ellipsometry, article, January 1, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc882075/: accessed November 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.