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Author Wang, Z. ♦ Huang, B. ♦ Huang, H. ♦ Xue, R. ♦ Chen, L. ♦ Wang, F.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ENERGY STORAGE ♦ DIRECT ENERGY CONVERSION ♦ ELECTRIC BATTERIES ♦ SOLID ELECTROLYTES ♦ SOLID ELECTROLYTE FUEL CELLS ♦ CLATHRATES ♦ RAMAN SPECTRA ♦ INFRARED SPECTRA ♦ LITHIUM COMPOUNDS ♦ ORGANIC POLYMERS ♦ NITRILES ♦ PLASTICIZERS
Abstract The Raman and infrared (IR) spectra of ethylene carbonate (EC) containing various concentrations of lithium perchlorate have been studied. It was found that both the vibrational frequencies and the relative intensities of the bands related to the ring structure and C{double_bond}O group of the EC molecule change with the concentration of LiClO{sub 4} in the solution. The results indicate that there are rather strong interactions between Li{sup +} ions and EC molecules. The interactions between the Li{sup +} ions and EC molecules occur on all three oxygen atoms of the carbonate group. Another result given by Raman and IR spectroscopy is that the vibrational modes of ClO{sub 4}{sup {minus}} anions at 460 and at 624 cm{sup {minus}1} are nearly as sensitive as the previously reported ClO{sub 4}{sup {minus}} bands at 930 cm{sup {minus}1} in detecting ion aggregates in the LiClO{sub 4}/EC solutions. The technical interest in these materials is that they can be used as solid electrolytes in solid-state batteries, fuel cells, and chemical sensors, etc.
ISSN 00134651
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-05-01
Publisher Place United States
Journal Journal of the Electrochemical Society
Volume Number 143
Issue Number 5


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