Design and synthesis of the superionic conductor Na[subscript 10]SnP[subscript 2]S[subscript 12]
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Richards-2015-Design and synthesis.pdf
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Author(s)
Richards, William Davidson
Tsujimura, Tomoyuki
Miara, Lincoln J.
Wang, Yan
Kim, Jae Chul
Ong, Shyue Ping
Uechi, Ichiro
Suzuki, Naoki
Ceder, Gerbrand
Alternative Title
Design and synthesis of the superionic conductor Na10SnP2S12
Date Issued
March 2016
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Richards, William D., Tomoyuki Tsujimura, Lincoln J. Miara, Yan Wang, Jae Chul Kim, Shyue Ping Ong, Ichiro Uechi, Naoki Suzuki, and Gerbrand Ceder. “Design and Synthesis of the Superionic Conductor Na[subscript 10]SnP[subscript 2]S[subscript 12].” Nat Comms 7 (March 17, 2016):
Version
Final published version
Abstract
Sodium-ion batteries are emerging as candidates for large-scale energy storage due to their low cost and the wide variety of cathode materials available. As battery size and adoption in critical applications increases, safety concerns are resurfacing due to the inherent flammability of organic electrolytes currently in use in both lithium and sodium battery chemistries. Development of solid-state batteries with ionic electrolytes eliminates this concern, while also allowing novel device architectures and potentially improving cycle life. Here we report the computation-assisted discovery and synthesis of a high-performance solid-state electrolyte material: Na10SnP2S12, with room temperature ionic conductivity of 0.4 mScm_1 rivalling the conductivity of the best sodium sulfide solid electrolytes to date. We also computationally investigate the variants of this compound where tin is substituted by germanium or silicon and find that the latter may achieve even higher conductivity.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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DOI of Published Version
https://doi.org/10.1038/ncomms11009
