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January 20, 2015Journal of the American Chemical Society348 citations

An Iodide-Based Li7P2S8I Superionic Conductor

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EREzhiylmurugan RangasamyZLZengcai LiuMGMallory Gobet

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Abstract

In an example of stability from instability, a Li(7)P(2)S(8)I solid-state Li-ion conductor derived from β-Li(3)PS(4) and LiI demonstrates electrochemical stability up to 10 V vs Li/Li(+). The oxidation instability of I is subverted via its incorporation into the coordinated structure. The inclusion of I also creates stability with the metallic Li anode while simultaneously enhancing the interfacial kinetics and ionic conductivity. Low-temperature membrane processability enables facile fabrication of dense membranes, making this conductor suitable for industrial adoption.

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Cite This Study

Rangasamy et al. (2015) studied this question.

synapsesocial.com/papers/69d974e59a6164e50fa3cd4ahttps://doi.org/10.1021/ja508723m
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