Electrochemical evaluation of CuFe2O4 samples obtained by sol–gel methods used as anodes in lithium batteries

CuFe 2 O 4 with a tetragonally distorted spinel structure has been prepared by the thermal decomposition of a citrate precursor. The copper–iron mixed organic salt was precipitated by either water evaporation or ethanol dehydration. The level of impurities of the final products depended on the precu...

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Bibliographic Details
Published inJournal of solid state electrochemistry Vol. 12; no. 6; pp. 729 - 737
Main Authors Bomio, M., Lavela, P., Tirado, J. L.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer-Verlag 01.06.2008
Subjects
Analytical Chemistry
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrochemistry
Energy Storage
Original Paper
Physical Chemistry
Citrate
Lithium
Ferrite
Batteries
Sol–gel
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Summary:CuFe 2 O 4 with a tetragonally distorted spinel structure has been prepared by the thermal decomposition of a citrate precursor. The copper–iron mixed organic salt was precipitated by either water evaporation or ethanol dehydration. The level of impurities of the final products depended on the precursor precipitation route and annealing temperature. EDH(800) material performed capacity values of 520 mAh/g after 50 cycles. Electron microscopy evidenced that the extrusion of copper yielded both transition metals separately at the end of discharge.
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-007-0420-3