On the structure of heptalithium distannide: Li7Sn2 or Li7- xSn2 (0.3 < x < 0.5)
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Li-Sn intermetallics are promising candidates for high-capacity Li-ion battery anodes, yet, the precise crystal structures of some "known" binary phases remain unresolved. One such phase, Li7Sn2, originally reported in 1975, is re-examined here using single-... ...
