Lithium Insertion Compounds of the High-and Low-Temperature Polymorphs of LiFeSnO4

E. Wang; H. Eckert; N. Kimura; J. V. Waszczak; M. Greenblatt; R. H. Herber

doi:10.1021/ic00205a014

Lithium Insertion Compounds of the High-and Low-Temperature Polymorphs of LiFeSnO4

E. Wang, H. Eckert, N. Kimura, J. V. Waszczak, M. Greenblatt, R. H. Herber

School of Arts and Sciences, Chemistry & Chemical Biology

Research output: Contribution to journal › Article › peer-review

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Abstract

The high-temperature (HT) and low-temperature (LT) polymorphs of LiFeSnO4 with ramsdellite-related structures undergo lithium insertion reactions with n-BuLi at ambient temperature to stoichiometries Li2FeSnO4 (HT) and Li1.8FeSnO4 (LT). We report crystal-chemical data for the lithium insertion compounds and the behavior of the host compounds mixed with graphite as the positive electrodes in small lithium secondary test cells. 57Fe Mössbauer studies confirm the reduction of Fe3+ to Fe2+ in the lithiated compounds. 119Sn Mössbauer results show subtle differences of Sn-0 bonding and distortion of the SnO6 polyhedra in the two polymorphs. Magnetic susceptibility vs. temperature data show strong exchange interactions in both polymorphs and their lithiated analogues.

Original language	English (US)
Pages (from-to)	1661-1665
Number of pages	5
Journal	Inorganic Chemistry
Volume	24
Issue number	11
DOIs	https://doi.org/10.1021/ic00205a014
State	Published - May 1 1985

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/ic00205a014

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title = "Lithium Insertion Compounds of the High-and Low-Temperature Polymorphs of LiFeSnO4",

abstract = "The high-temperature (HT) and low-temperature (LT) polymorphs of LiFeSnO4 with ramsdellite-related structures undergo lithium insertion reactions with n-BuLi at ambient temperature to stoichiometries Li2FeSnO4 (HT) and Li1.8FeSnO4 (LT). We report crystal-chemical data for the lithium insertion compounds and the behavior of the host compounds mixed with graphite as the positive electrodes in small lithium secondary test cells. 57Fe M{\"o}ssbauer studies confirm the reduction of Fe3+ to Fe2+ in the lithiated compounds. 119Sn M{\"o}ssbauer results show subtle differences of Sn-0 bonding and distortion of the SnO6 polyhedra in the two polymorphs. Magnetic susceptibility vs. temperature data show strong exchange interactions in both polymorphs and their lithiated analogues.",

author = "E. Wang and H. Eckert and N. Kimura and Waszczak, {J. V.} and M. Greenblatt and Herber, {R. H.}",

year = "1985",

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TY - JOUR

T1 - Lithium Insertion Compounds of the High-and Low-Temperature Polymorphs of LiFeSnO4

AU - Wang, E.

AU - Eckert, H.

AU - Kimura, N.

AU - Waszczak, J. V.

AU - Greenblatt, M.

AU - Herber, R. H.

PY - 1985/5/1

Y1 - 1985/5/1

N2 - The high-temperature (HT) and low-temperature (LT) polymorphs of LiFeSnO4 with ramsdellite-related structures undergo lithium insertion reactions with n-BuLi at ambient temperature to stoichiometries Li2FeSnO4 (HT) and Li1.8FeSnO4 (LT). We report crystal-chemical data for the lithium insertion compounds and the behavior of the host compounds mixed with graphite as the positive electrodes in small lithium secondary test cells. 57Fe Mössbauer studies confirm the reduction of Fe3+ to Fe2+ in the lithiated compounds. 119Sn Mössbauer results show subtle differences of Sn-0 bonding and distortion of the SnO6 polyhedra in the two polymorphs. Magnetic susceptibility vs. temperature data show strong exchange interactions in both polymorphs and their lithiated analogues.

AB - The high-temperature (HT) and low-temperature (LT) polymorphs of LiFeSnO4 with ramsdellite-related structures undergo lithium insertion reactions with n-BuLi at ambient temperature to stoichiometries Li2FeSnO4 (HT) and Li1.8FeSnO4 (LT). We report crystal-chemical data for the lithium insertion compounds and the behavior of the host compounds mixed with graphite as the positive electrodes in small lithium secondary test cells. 57Fe Mössbauer studies confirm the reduction of Fe3+ to Fe2+ in the lithiated compounds. 119Sn Mössbauer results show subtle differences of Sn-0 bonding and distortion of the SnO6 polyhedra in the two polymorphs. Magnetic susceptibility vs. temperature data show strong exchange interactions in both polymorphs and their lithiated analogues.

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Lithium Insertion Compounds of the High-and Low-Temperature Polymorphs of LiFeSnO4

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