First Principles Study of the Li[subscript 10]GeP[subscript 2]S[subscript 12] Lithium Super Ionic Conductor Material

The continued drive for high performance lithium batteries has imposed stricter requirements on the electrolyte materials. Solid electrolytes comprising lithium super ionic conductor materials exhibit good safety and stability and are promising to replace current organic liquid electrolytes. One maj...

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Bibliographic Details
Main Authors: Mo, Yifei, Ong, Shyue Ping, Ceder, Gerbrand
Other Authors: Massachusetts Institute of Technology. Department of Materials Science and Engineering
Format: Article
Language:en_US
Published: American Chemical Society (ACS) 2013
Online Access:http://hdl.handle.net/1721.1/80290
https://orcid.org/0000-0002-8162-4629
Description
Summary:The continued drive for high performance lithium batteries has imposed stricter requirements on the electrolyte materials. Solid electrolytes comprising lithium super ionic conductor materials exhibit good safety and stability and are promising to replace current organic liquid electrolytes. One major limitation in the application of Li-ion conductors is that their typical conductivity is less than 10[superscript −4] S/cm at room temperature. Recently, Kamaya et al. reported a new Li super ionic conductor Li[subscript 10]GeP[subscript 2]S[subscript 12] (LGPS), which has the highest conductivity ever achieved among solid lithium electrolytes of 12 mS/cm at room temperature (comparable conductivity with liquid electrolytes) and outstanding electrochemical performance in Li batteries.