Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 137, Issue 4, Pages 1384-1387Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja508723m
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Funding
- Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy (DOE)
- DOE BES Division of Materials Chemistry [DE-SC0005029]
- Oak Ridge National Laboratory by Division of Scientific User Facilities, U.S. DOE
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In an example of stability from instability, a Li7P2S8I solid-state Li-ion conductor derived from beta-Li3PS4 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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