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Title: Correlation of Structure and Fast Ion Conductivity in the Solid Solution Series Li1+2xZn1–x PS 4

Abstract

Solid electrolytes are the foundation of all-solid-state batteries (ASSB) and have the potential to provide improved safety and higher energy density than existing liquid battery systems. In the important search for new lithium ion conductors with fast ionic conductivity and good mechanical properties, thiophosphates are a particularly promising class of materials. The first experimental elucidation of new lithium ion conductors in the Li1+2xZn1-xPS4 (LZPS) solid solution whose existence had been predicted by theory is reported in this paper. Using neutron and synchrotron x-ray powder diffraction together with electrical impedance, and Raman studies, we resolve their crystalline nature and correlate this with ionic conductivity upon increasing the lithium/zinc ratio. We demonstrate that the materials exhibit high experimental ionic conductivities - up to 8 × 10-4 S·cm-1 - and show the nature of likely pathways for lithium ion conduction.

Authors:
 [1];  [1];  [2];  [1];  [3];  [3]; ORCiD logo [1]
  1. Univ. of Waterloo, ON (Canada)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. BASF SE, Ludwigshafen (Germany)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
BASF International Scientific Network for Electrochemistry and Batteries; Natural Sciences and Engineering Research Council of Canada (NSERC); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
OSTI Identifier:
1436802
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Chemistry of Materials
Additional Journal Information:
Journal Volume: 30; Journal Issue: 3; Journal ID: ISSN 0897-4756
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
ENGLISH
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Crystal structure; Ions; Ionic conductivity; Electrical conductivity; Lithium

Citation Formats

Kaup, Kavish, Lalère, Fabien, Huq, Ashfia, Shyamsunder, Abhinandan, Adermann, Torben, Hartmann, Pascal, and Nazar, Linda F. Correlation of Structure and Fast Ion Conductivity in the Solid Solution Series Li1+2xZn1–x PS 4. United States: N. p., 2018. Web. doi:10.1021/acs.chemmater.7b05108.
Kaup, Kavish, Lalère, Fabien, Huq, Ashfia, Shyamsunder, Abhinandan, Adermann, Torben, Hartmann, Pascal, & Nazar, Linda F. Correlation of Structure and Fast Ion Conductivity in the Solid Solution Series Li1+2xZn1–x PS 4. United States. https://doi.org/10.1021/acs.chemmater.7b05108
Kaup, Kavish, Lalère, Fabien, Huq, Ashfia, Shyamsunder, Abhinandan, Adermann, Torben, Hartmann, Pascal, and Nazar, Linda F. Tue . "Correlation of Structure and Fast Ion Conductivity in the Solid Solution Series Li1+2xZn1–x PS 4". United States. https://doi.org/10.1021/acs.chemmater.7b05108. https://www.osti.gov/servlets/purl/1436802.
@article{osti_1436802,
title = {Correlation of Structure and Fast Ion Conductivity in the Solid Solution Series Li1+2xZn1–x PS 4},
author = {Kaup, Kavish and Lalère, Fabien and Huq, Ashfia and Shyamsunder, Abhinandan and Adermann, Torben and Hartmann, Pascal and Nazar, Linda F.},
abstractNote = {Solid electrolytes are the foundation of all-solid-state batteries (ASSB) and have the potential to provide improved safety and higher energy density than existing liquid battery systems. In the important search for new lithium ion conductors with fast ionic conductivity and good mechanical properties, thiophosphates are a particularly promising class of materials. The first experimental elucidation of new lithium ion conductors in the Li1+2xZn1-xPS4 (LZPS) solid solution whose existence had been predicted by theory is reported in this paper. Using neutron and synchrotron x-ray powder diffraction together with electrical impedance, and Raman studies, we resolve their crystalline nature and correlate this with ionic conductivity upon increasing the lithium/zinc ratio. We demonstrate that the materials exhibit high experimental ionic conductivities - up to 8 × 10-4 S·cm-1 - and show the nature of likely pathways for lithium ion conduction.},
doi = {10.1021/acs.chemmater.7b05108},
journal = {Chemistry of Materials},
number = 3,
volume = 30,
place = {United States},
year = {Tue Feb 06 00:00:00 EST 2018},
month = {Tue Feb 06 00:00:00 EST 2018}
}

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