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Author Goldner, R. B. ♦ Liu, T. Y. ♦ Slaven, S.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ENERGY STORAGE ♦ MATERIALS SCIENCE ♦ METAL-NONMETAL BATTERIES ♦ ELECTRODES ♦ PERFORMANCE ♦ LITHIUM OXIDES ♦ ELECTRICAL PROPERTIES ♦ COBALT OXIDES ♦ LITHIUM CARBIDES ♦ MEASURING METHODS ♦ DIFFUSION ♦ MATHEMATICAL MODELS
Abstract The authors describe a relatively easy-to-implement transient technique to obtain, rapidly, a lower bound measure of the chemical diffusion constant, D, especially during in situ measurements on thin film electrodes. The technique allows for on the fly measurements (such as during charging or discharging of an electrochemical cell). It does not require postmeasurement analyses (e.g., curve-fitting, which is often required by other transient techniques) nor does it require long uncertain waiting times for the attainment of equilibrium as required by the original galvanostatic intermittent titration technique (GITT) of Weppner and Huggins. Presented are typical data obtained for two thin film electrodes of interest for lithium ion batteries: Li{sub x}C{sub 6} and Li{sub y}CoO{sub 2}.
ISSN 00134651
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-06-01
Publisher Place United States
Journal Journal of the Electrochemical Society
Volume Number 143
Issue Number 6


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