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Structural and mechanistic features of intermetallic materials for lithium batteries.

DE2001757556

Publication Date	2000
Personal Author	Vaughey, J. T.; Johnson, C. S.; Kropf, A. J.; Benedek, R.; Thackeray, M. M.; Tostmann, H.; Sarakonsri, T.; Hackney, S.; Fransson, L.; Edstrom, K.; Thomas, J. O.
Page Count	14
Abstract	A new anode system based on intermetallic phases with a zinc-blende-type structure (inSb, GaSb and AISb) has been studied for lithium-ion batteries. The compound, InSb, in particular, cycles well and operates under various mechanisms depending on voltage window used. In the potential range 1.2 V to 0.6 V, a mechanism involving lithium insertion into an open framework structure followed by indium extrusion appears to dominate; between 0.6 V and 0.0 V, a more complex mechanism involving indium extrusion from a stable Sb anion array and subsequent lithiation of the extruded indium contributes to the electrode capacity. In-situ X-ray diffraction and extended X-ray analysis fine structure (EXAFS) data were obtained over the voltage window 1.2 V to 0.5 V, where a rechargeable capacity of 300 mAh/g is achievable.
Keywords	Batteries Intermetallic compounds Structural properties Mechanistic properties Lithium Microstructure Mechanical properties Metal-nonmetal batteries
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL.; Department of Energy, Washington, DC.
Document Type	Conference Proceedings
NTIS Issue Number	200123
Contract Number	W-31-109-ENG-38

Structural and mechanistic features of intermetallic materials for lithium batteries.

Structural and mechanistic features of intermetallic materials for lithium batteries.
DE2001757556

Publication Date	2000
Personal Author	Vaughey, J. T.; Johnson, C. S.; Kropf, A. J.; Benedek, R.; Thackeray, M. M.; Tostmann, H.; Sarakonsri, T.; Hackney, S.; Fransson, L.; Edstrom, K.; Thomas, J. O.
Page Count	14
Abstract	A new anode system based on intermetallic phases with a zinc-blende-type structure (inSb, GaSb and AISb) has been studied for lithium-ion batteries. The compound, InSb, in particular, cycles well and operates under various mechanisms depending on voltage window used. In the potential range 1.2 V to 0.6 V, a mechanism involving lithium insertion into an open framework structure followed by indium extrusion appears to dominate; between 0.6 V and 0.0 V, a more complex mechanism involving indium extrusion from a stable Sb anion array and subsequent lithiation of the extruded indium contributes to the electrode capacity. In-situ X-ray diffraction and extended X-ray analysis fine structure (EXAFS) data were obtained over the voltage window 1.2 V to 0.5 V, where a rechargeable capacity of 300 mAh/g is achievable.
Keywords	Batteries Intermetallic compounds Structural properties Mechanistic properties Lithium Microstructure Mechanical properties Metal-nonmetal batteries
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL.; Department of Energy, Washington, DC.
Document Type	Conference Proceedings
NTIS Issue Number	200123
Contract Number	W-31-109-ENG-38