Abstract
Intermetallic phases Li–Sn were synthesized by ball-milling and characterized for their structures and electrochemical performances. All phases in Li–Sn binary phase diagram were identified by 119Sn Mössbauer spectroscopy, used as reference materials for the study of lithium insertion into tin-based electrode materials. The observed spectra show two distinct environments of tin; the Sn-rich phases and the Li-rich phases. An example of electrochemical properties of these phases is proposed for Li22Sn5. Irreversibility of the first cycle is related to the structural change (3D→2D) of this phase.
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Robert, F., Lippens, P.E., Fourcade, R. et al. Mechanosynthesis and characterisation of the Li–Sn system. Hyperfine Interact 167, 797–801 (2006). https://doi.org/10.1007/s10751-006-9360-z
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DOI: https://doi.org/10.1007/s10751-006-9360-z