Electrochemical performance of LiMSnO{sub 4} (M=Fe, In) phases with ramsdellite structure as anodes for lithium batteries

Journal Article · Mon Nov 01 00:00:00 EST 2004 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2004.07.026· OSTI ID:20658177

Satya Kishore, M V ^[1]; Varadaraju, U V ^[1]; Raveau, B ^[2]

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1. Materials Science Research Centre and Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu (India)
2. Laboratoire CRISMAT, UMR 6508 CNRS, ENSICAEN, 6 Boulevard du Marechal Juin, 14050, CAEN Cedex 4 (France)

LiMSnO{sub 4} (M=Fe, In) compounds were synthesized by high temperature solid-state reaction method and the electrochemical studies were carried out vs. lithium metal. Lithium is reversibly intercalated and deintercalated in LiFeSnO{sub 4} with a constant capacity of {approx}90mAh/g. In situ X-ray diffraction data show that ramsdellite structure is stable for lithium intercalation and deintercalation in LiFeSnO{sub 4}. Galvanostatic discharge/charge of LiFeSnO{sub 4} in the voltage window 0.05-2.0V shows a reversible capacity of {approx}100mAh/g. The observed capacity in LiFeSnO{sub 4} is due to the two processes involving alloying/dealloying of Li{sub 4.4}Sn and formation/decomposition of Li{sub 2}O. In contrast, the new isotypic oxide LiInSnO{sub 4} does not exhibit any lithium intercalation due to the absence of mixed valence for indium. Its reversible capacity is strongly dependent on the voltage window. LiInSnO{sub 4} exhibits severe capacity fading on cycling in the voltage window 0.05-2.0V, but shows a stable capacity of {approx}90mAh/g in the voltage range 0.75-2.0V.

• OSTI ID: 20658177
• Journal Information: Journal of Solid State Chemistry, Vol. 177, Issue 11; Other Information: DOI: 10.1016/j.jssc.2004.07.026; PII: S0022-4596(04)00412-8; Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANODES
CAPACITY
DECOMPOSITION
ELECTRIC BATTERIES
ELECTROCHEMISTRY
INDIUM COMPOUNDS
IRON COMPOUNDS
LITHIUM
LITHIUM OXIDES
OXIDES
PERFORMANCE
TIN COMPOUNDS
X-RAY DIFFRACTION