Thumbnail
Access Restriction
Open

Author Saiedi, M. Y. ♦ Barker, J. ♦ Koksbang, R.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CHEMISTRY ♦ ENERGY STORAGE ♦ LITHIUM OXIDES ♦ ELECTROCHEMISTRY ♦ MANGANESE OXIDES ♦ CATALYST SUPPORTS ♦ CHEMICAL REACTION KINETICS ♦ THERMODYNAMICS ♦ STOICHIOMETRY
Abstract Electrochemical and kinetic measurements have been performed on Li{sub 1-x}Mn{sub 2}O{sub 4} prepared by an oxidative treatment of the parent spinel LiMn{sub 2}O{sub 4}. The results are compared to those obtained for the spinel under identical experimental conditions. The thermodynamics of the first intercalation step in the chemically delithiated material differs from that of the parent spinel. This is reflected in a distinctive feature in the voltage profile of the chemically delithiated material supported by a distinctive trend in the diffusion coefficient versus lithium composition relationship. After the initial discharge/charge cycle, the electrochemical properties appear to revert to those of the parent spinel. The results are explained in terms of differences in the Coulombic interactions between the mobile charges.
ISSN 00224596
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-02-15
Publisher Place United States
Journal Journal of Solid State Chemistry
Volume Number 122
Issue Number 1


Open content in new tab

   Open content in new tab