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FeWO4Cl as cathode material for lithium rechargeable battery

Title
FeWO4Cl as cathode material for lithium rechargeable battery
Authors
Im S.Park J.Oh H.Choy J.Delmas C.Han K.
Ewha Authors
최진호
SCOPUS Author ID
최진호scopus
Issue Date
2009
Journal Title
Journal of Electroceramics
ISSN
1385-3449JCR Link
Citation
vol. 23, no. 41309, pp. 305 - 311
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Lithium has been electrochemically and chemically intercalated into layered FeWO4Cl. The discharge curve between FeWO4Cl and Li 2FeWO4Cl is constituted by three potential plateaux and two domains where the cell voltage decreases rapidly upon the intercalation of lithium ions. A wide bi-phase domain is obtained for x in Li x FeWO4Cl ranging between 0.0 and 0.85. The limit of a solid solution extends in the vicinity of the LiFeWO4Cl composition. The theoretical and practical discharge capacities for Li1-xFeWO4Cl are 79.03 mAh/g and 78.45 mAh/g respectively. The structures of FeWO4Cl and LiFeWO4Cl were determined: from single crystal analysis and by Rietveld refinement of the powder X-ray diffraction pattern respectively. The modifications of the Fe-O bond lengths emphasize the iron reduction during the discharge process. Moreover, the strong change of Fe-Cl distance suggests a reversible framework modification. © 2008 Springer Science+Business Media, LLC.
DOI
10.1007/s10832-008-9444-z
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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